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Encyclopedia results for DNA polymerase I

DNA polymerase I





Encyclopedia results for DNA polymerase I

  1. DNA polymerase I

    that Polymerase I was not the enzyme responsible for most DNA synthesis &mdash DNA replication ... The eureka enzyme the discovery of DNA polymerase author Errol C. Friedberg ref It was not until the discovery of DNA polymerase III that the main replicative DNA polymerase was finally identified. Research applications DNA polymerase I obtained from E. coli is used extensively for molecular biology ... 233 issue 1 pages 163 170 pmid 13563462 ref it was the first known DNA polymerase and, indeed ... DNA polymerase activity, requiring a 3 Primer molecular biology primer site and a template strand ... Polymerase I removes the RNA primer created by Primase from the lagging strand and fills in the necessary ... by Polymerase I averages only between 10 and 20 nucleotides second. Moreover, its cellular abundance ... was proven when, in 1969, John Cairns biochemist John Cairns isolated a viable Polymerase I ... Strain with a Mutation affecting DNA Polymerase author Paula de Lucia coauthors John Cairns ref Cairns ... them for DNA polymerase activity. The 3,478th clone contained the polA mutant, which was named ... molecule called the Klenow fragment , widely used in molecular biology . Exposure of DNA polymerase I to the protease subtilisin cleaves the molecule into a smaller fragment, which retains only the DNA polymerase and proofreading activities. See also DNA polymerase II DNA polymerase III References Reflist Polymerases DNA replication DEFAULTSORT Dna Polymerase I Category EC 2.7.7 Category DNA replication Category Enzymes ca ADN polimerasa I cs DNA polymer za I it DNA polimerasi I zh DNA I ...Image PolymeraseDomains.jpg right thumb 300px center Functional domains in the Klenow Fragment left and DNA Polymerase I right . center DNA Polymerase I or Pol I is an enzyme that participates in the process of DNA replication in prokaryote s. It is composed of 928 amino acids, and is an example of a Processivity ... Kornberg in 1956, ref cite journal title Enzymatic Synthesis of Deoxyribonucleic Acid. I. Preparation ...   more details



  1. DNA polymerase

    infobox enzyme Name DNA directed DNA polymerase EC number 2.7.7.7 CAS number 9012 90 2 IUBMB EC number ... helix turn helix motifs in human DNA polymerase beta based on pdb file http www.rcsb.org pdb explore.do?structureId 7ICG 7ICG A DNA polymerase is an enzyme that helps catalyze in the polymerization ... feedback role in DNA replication , in which the polymerase reads an intact DNA strand as a wikt ... DNA polymerase with proofreading ability DNA polymerase can add free nucleotides to only the 3 end ... DNA polymerase is able to begin a new chain de novo . DNA polymerase can add a nucleotide onto only ... mistakes in newly synthesized DNA. When an incorrect base pair is recognized, DNA polymerase reverses ... viruses also encode special DNA polymerases, such as Hepatitis B virus DNA polymerase . These may ... polymerase called reverse transcriptase , which is an RNA dependent DNA polymerase RdDp . It polymerizes DNA from a template of RNA . DNA polymerase families Infobox protein family Symbol DNA pol A Name DNA polymerase family A image PDB 2hht EBI.jpg width caption c o6 methyl guanine pair in the polymerase ... SCOP 1dpi TCDB OPM family OPM protein CAZy CDD Infobox protein family Symbol DNA pol B Name DNA polymerase ... DNA polymerase type B, organellar and viral image PDB 1xhz EBI.jpg width caption phi29 dna polymerase ... the extensively studied T7 DNA polymerase , as well as the eukaryotic mitochondrial DNA Polymerase . Among the repair polymerases are Escherichia coli DNA pol I, Thermus aquaticus pol I, and Bacillus ... for instance have mutations in the gene encoding DNA polymerase eta Pol eta , which is error free ... DNA polymerases main Prokaryotic DNA polymerase Bacteria have 5 known DNA polymerases. Eukaryotic DNA polymerases main Eukaryotic DNA polymerase Eukaryotes have at least 15 DNA Polymerases. ref cite journal author I. Hubscher, U. Maga, G. Spadari, S. date 2002 title Eukaryotic DNA polymerases ... archive repprot.htm Unusual repair mechanism in DNA polymerase lambda , Ohio State University ...   more details



  1. Prokaryotic DNA polymerase

    There are 5 known Prokaryotic DNA polymerases DNA polymerase I Pol I implicated in DNA repair has 5 3 polymerase activity, and both 3 5 exonuclease activity proofreading and 5 3 exonuclease activity RNA primer removal . DNA polymerase II Pol II involved in repairing damaged DNA has 3 5 exonuclease activity. DNA polymerase III holoenzyme Pol III the main polymerase in bacteria responsible for elongation has 3 5 exonuclease activity proofreading . DNA polymerase IV Pol IV a Y family DNA polymerase. DNA polymerase V Pol V a Y family DNA polymerase participates in bypassing DNA damage. See also DNA polymerase Polymerases DNA replication Category EC 2.7.7 Category DNA replication Category DNA ...   more details



  1. DNA polymerase II

    Unreferenced stub auto yes date December 2009 This article is about the DNA Polymerase. For the RNA Polymerase, see RNA polymerase II DNA polymerase II also known as DNA Pol II or Pol II is a prokaryote prokaryotic DNA polymerase most likely involved in DNA repair . The enzyme is 90 kDa in size and is coded by the POLB polB gene . DNA Pol II can synthesize DNA new base pairs at an average rate of between 40 and 50 nucleotides second. Strains lacking the gene show no defect in growth or replication. Synthesis of Pol II is induced during the stationary phase of cell growth. This is a phase in which little growth and DNA synthesis occurs. It is also a phase in which the DNA can accumulate mutation damage such as short gaps, which act as a block to DNA Pol III . Under these circumstances, Pol II helps to overcome the problem because it can reinitiate DNA synthesis downstream of gaps. Pol II has a low error rate but it is much too slow to be of any use in normal DNA synthesis. Pol II differs from Pol I in that it lacks a 5 3 exonuclease activity, and cannot use a nicked duplex template. See also DNA replication . DEFAULTSORT Dna Polymerase Ii Category DNA replication Category EC 2.7.7 Category Enzymes Transferase stub cs DNA polymer za II it DNA polimerasi II ...   more details



  1. DNA polymerase III holoenzyme

    is removed by DNA polymerase I via the process of nick translation . The removal of the RNA primer ...Pol III can also refer to HNoMS Pol III , a Norwegian guard vessel from WWII DNA polymerase III holoenzyme ... Name Bacterial DNA polymerase III alpha subunit image width caption crystal structure of the catalytic alpha subunit of e. coli replicative dna polymerase iii Pfam PF07733 Pfam clan InterPro IPR011708 ... pol3 delta Name DNA polymerase III, delta subunit image PDB 1xxh EBI.jpg width caption atpgs bound ... family OPM protein CAZy CDD Infobox protein family Symbol DNA pol3 tau 4 Name DNA polymerase III subunits ... 5 Name DNA polymerase III tau subunit V interacting with alpha image width caption solution structure of the c terminal 14 kda domain of the tau subunit from escherichia coli dna polymerase iii Pfam ... Infobox protein family Symbol DNA pol3 theta Name DNA polymerase III, theta subunit image PDB 2ido ... protein family Symbol DNA pol3 chi Name DNA polymerase III chi subunit, HolC image PDB 1em8 EBI.jpg ... the polymerase bound to the DNA. 2 units which acts to dimerize two of the core enzymes , , and ... DNA polymerase III synthesizes base pairs at a rate of around 1000 nucleotides per second. ref ... stranded DNA, is synthesized by primase an RNA polymerase for RNA , for DNA , for polymerase RNA ribose ... progresses and the replisome moves forward, DNA polymerase III arrives at the RNA primer ... G U A U Polymerase Pol RNA primer III hydrogen bonding C A T A G C A T C C DNA template ss DNA single stranded DNA deoxyribose sugar phosphate backbone Synthesis of DNA DNA polymerase III will then synthesize ... or lagging strand Okazaki fragment of the DNA. DNA polymerase III has a high processivity and therefore ... onto the DNA strands. DNA deoxyribose sugar phosphate backbone G U A U C G T A G G Polymerase Pol ... polymerase I & III, along with many other enzymes are all required for the high fidelity, high processivity of DNA replication. See also DNA replication DNA polymerase References reflist External links ...   more details



  1. DNA polymerase eta

    DNA polymerase eta Pol is a eukaryotic DNA polymerase involved in the DNA repair Translesion synthesis DNA repair by translesion synthesis . The gene encoding DNA polymerase eta is POLH , also known as XPV, because loss of this gene results in the disease Xeroderma Pigmentosum Variant. Polymerase eta is particularly important for allowing accurate translesion synthesis of DNA damage resulting from ultraviolet radiation or UV. References refbegin http www.ncbi.nlm.nih.gov sites entrez?db gene&cmd retrieve&list uids 5429 refend Category DNA replication ...   more details



  1. Eukaryotic DNA polymerase

    There are at least 15 Eukaryotic DNA polymerases ref cite journal author I. Hubscher, U. Maga, G. Spadari, S. date 2002 title Eukaryotic DNA polymerases journal Annual Review of Biochemistry volume 71 page 133 63 pmid 12045093 doi 10.1146 annurev.biochem.71.090501.150041 pages 133 ref POLA1 , POLA2 Polymerase DNA directed , alpha 1 Pol also called RNA primase forms a complex with a small catalytic ... strand and on the lagging strand . POLB DNA polymerase beta Pol Implicated in repairing DNA, in base ... DNA and has proofreading 3 5 exonuclease activity. POLD1 , POLD2 , POLD3 , POLD4 DNA polymerase ... about its role ref name Scott D McCulloch Thomas A Kunkel 148 161 . POLH , POLI , POLK , DNA polymerase eta , , POLK , and Rev1 are Y family DNA polymerases and Pol is a B family DNA polymerase. These polymerases are involved in the bypass of DNA damage. ref cite journal author I. Prakash, S. Johnson, R. E. Prakash, L. date 2005 title Eukaryotic translesion synthesis DNA polymerases specificity ... . See also DNA polymerase PolO polomega PolS polsigma References reflist Polymerases DNA replication Category EC 2.7.7 Category DNA replication Category DNA fa ... date 12 2006 title DNA Replication in the Archaea journal Microbiology and Molecular Biology Reviews ... subunits acting as a primase synthesizing an RNA primer , and then with DNA Pol elongating that primer with DNA nucleotides. After around 20 nucleotides ref J. M. Berg J. L. Tymoczko L. Stryer ... polymerase involved in lagging strand synthesis, though there is still debate about its role ref name ... 01 2008 title The fidelity of DNA synthesis by eukaryotic replicative and translesion synthesis polymerases ... activity. Highly related to pol , and thought to be the main polymerase involved in leading strand synthesis ref cite journal author Pursell, Z.F. et al. date 2007 title Yeast DNA Polymerase Participates in Leading Strand DNA Replication journal Science volume 317 page 127 130 pmid 17615360 doi ...   more details



  1. DNA polymerase delta

    DNA polymerase delta is an enzyme complex found in eukaryote s that is involved in DNA replication and DNA repair repair , and it consists of the proliferating cell nuclear antigen PCNA , the multisubunit replication factor C , and the 4 subunit polymerase complex POLD1 , POLD2 , POLD3 , and POLD4 . ref name pmid16934752 cite journal author Liu G, Warbrick E title The p66 and p12 subunits of DNA polymerase delta are modified by ubiquitin and ubiquitin like proteins journal Biochem. Biophys. Res. Commun. volume 349 issue 1 pages 360 6 year 2006 month October pmid 16934752 doi 10.1016 j.bbrc.2006.08.049 url issn ref References Reflist External links MeshName DNA polymerase delta DNA replication enzyme stub NLM content Category EC 2.7.7 cs DNA polymer za ...   more details



  1. ?29 DNA polymerase

    I, L zaro JM, Salas M, De Vega M title phi29 DNA polymerase terminal protein interaction. Involvement ... 2836 02 01130 0 author Rodr guez I, L zaro JM, Salas M, de Vega M title phi29 DNA polymerase residue ... 29 DNA polymerase is an enzyme from the 29 phage bacteriophage 29 . It is being increasingly used ... 29 DNA polymerase. Symmetrical mode of DNA replication journal J. Biol. Chem. volume 264 issue 15 ... mutagenesis of the YCDTDS amino acid motif of the phi 29 DNA polymerase journal Gene volume 94 ... phi 29 DNA polymerase, a proofreading enzyme journal J. Biol. Chem. volume 267 issue 4 pages ... DNA polymerase and a novel primer at elevated temperature journal BMC Res Notes volume 2 issue pages ... labeling of DNA via rolling circle amplification RCA polymerase 29. journal Eur J Med Chem volume ... DNA polymerase amplification performance by fusion of DNA binding motifs. journal Proc Natl Acad ... M title phi29 DNA polymerase active site role of residue Val250 as metal dNTP complex ligand and in protein ... JM, Salas M, de Vega M title Functional importance of bacteriophage phi29 DNA polymerase residue Tyr148 ... of viral DNA genomes using phi29 polymerase. journal Trends Microbiol volume 17 issue 5 ... with improved yield achieved by phi29 DNA polymerase and a novel primer at elevated temperature ... DNA polymerase RNA detection and analysis in vitro and in situ by target RNA primed RCA. journal ... of the TPR2 subdomain movement in the activities of phi29 DNA polymerase. journal Nucleic Acids ... BJ, Dunn JJ title Rapid detection and identification of a pathogen s DNA using Phi29 DNA polymerase ... E, Reagin M, Vidali A title Improved multiple displacement amplification with phi29 DNA polymerase ..., L zaro JM, de Vega M title The bacteriophage phi29 DNA polymerase. journal IUBMB Life volume 60 issue ... Silander K, Saarela J title Whole genome amplification with Phi29 DNA polymerase to enable genetic ... of polynucleotide substrates for Phi29 DNA polymerase 3 5 RNase activity of the enzyme. journal ...   more details



  1. DNA polymerase beta

    edit Polymerase DNA directed , beta , also known as POLB , is an enzyme that, in humans, is encoded by the POLB gene . ref name entrez cite web title Entrez Gene POLB polymerase DNA directed , beta ... ref Function In Eukaryote eukaryotic cells, DNA polymerase beta POLB performs base excision repair ... , and drug resistance. ref name entrez Regulation of expression DNA polymerase beta maintains genome ... of DNA polymerase beta in cell results in a mutator phenotype and a decreased sensitivity ... Deregulated DNA polymerase beta induces chromosome instability and tumorigenesis journal Cancer Res ... SH title DNA polymerase beta expression differences in selected human tumors and cell lines journal .... ref name pmid12674496 cite journal author He F, Yang XP, Srivastava DK, Wilson SH title DNA polymerase ... author Narayan S, He F, Wilson SH title Activation of the human DNA polymerase beta promoter by a DNA ... structure within the 3 UTR of DNA polymerase beta mRNA acts as a post transcriptional regulatory element ... to be determined. Interactions DNA polymerase beta has been shown to Protein protein interaction ... with DNA polymerase beta and has a potential role in cellular phenotype journal Cancer Res. volume ... DNA polymerase beta and the XRCC1 protein journal EMBO J. volume 15 issue 23 pages 6662 70 publisher ... of a DNA polymerase beta variant journal Biochemistry volume 40 issue 30 pages 9005 13 publisher ... laysummary laysource laydate quote doi 10.1021 bi0028789 ref See also Polymerase DNA directed , alpha ... journal author Date T title Two regions in human DNA polymerase beta mRNA suppress translation in Escherichia ... U, Ghosh L, Banerjee S title DNA polymerase beta mutations in human colorectal cancer journal Cancer ... of DNA polymerase beta by in vitro phosphorylation with protein kinase C journal J. Biol ... SenGupta DN title Sequence of human DNA polymerase beta mRNA obtained through cDNA cloning journal ... A, Collins J, Wilson SH title Characterization of DNA polymerase beta mRNA cell cycle and growth ...   more details



  1. Pfu DNA polymerase

    For the measure of viral plaques Plaque forming unit DISPLAYTITLE Pfu DNA polymerase Pfu DNA polymerase is an enzyme found in the hyperthermophilic archaeon Pyrococcus furiosus , where it functions in vivo to replicate the organism s DNA . In vitro , Pfu is used to quickly amplify DNA in polymerase chain reaction PCR processes, where the enzyme serves the central function of copying a new strand of DNA during each extension step. Proofreading ability of Pfu polymerase The main difference between Pfu and alternative enzymes is Pfu s superior thermostability and proofreading properties compared to other thermostable polymerases. Unlike Taq DNA polymerase Taq DNA polymerase , Pfu DNA polymerase possesses 3 to 5 exonuclease proofreading activity, meaning that it works its way along the DNA from the 5 end to the 3 end and corrects nucleotide misincorporation errors. This means that Pfu DNA polymerase generated PCR fragments will have fewer errors than Taq generated PCR inserts. As a result, Pfu is more commonly used for molecular cloning of PCR fragments than the historically popular Taq . Commercially available Pfu typically results in an error rate of 1 in 1.3 million base pairs and can yield 2.6 mutated products when amplifying 1 kb fragments using PCR. However, Pfu is slower and typically requires 1&ndash 2 minutes per cycle to amplify 1kb of DNA at 72 C. Using Pfu DNA polymerase in PCR reactions also results in blunt ended PCR products. Pfu DNA polymerase is hence superior for techniques that require high fidelity DNA synthesis, but can also be used in conjunction with Taq polymerase to obtain the fidelity of Pfu with the speed of Taq polymerase activity. History Scientists ... as Lundberg et al., A High Fidelity Thermostable DNA Polymerase Isolated from Pyrococcus Furiosus ... 5,545,552 Category Microbiology Category DNA replication Category EC 2.7.7 de Pfu Polymerase id Pfu DNA polimerase ...   more details



  1. T7 DNA polymerase

    The T7 DNA polymerase of the T7 phage T7 bacteriophage is a DNA dependent DNA polymerase responsible for the fast rate of T7 phage DNA replication in vivo . The polymerase consists of a 1 1 complex of the viral T7 gene 5 protein 80kDA and the E. coli thioredoxin 12kDA . It lacks a 5 3 exonuclease domain, but the 3 5 exonuclease activities are approximately 1000 fold greater than that of Klenow fragment . ref Cite journal author Sambrook, J., Russell, D.W. title Molecular Cloning A Laboratory Manual, Third edition journal Cold Spring Harbor Laboratory Press location Cold Spring Harbor, New York, 2001. year 2001 ref The exonuclease activity appears to be responsible for the high fidelity of this enzyme and prevents strand displacement synthesis ref Cite journal author LECHNER, R. L. AND RICHARDSON, C. C. journal J. Biol. Chem. title A preformed, topologically stable replication fork. volume 258 year 1983 pages 11185 11196 pmid 6885816 issue 18 ref This polymerase is unique due to its considerable processivity , or ability to stay on DNA for a greater than average number of base pairs. It is also suitable for site directed mutagenesis ref Cite journal author BEBENEK, K. et al. journal Nucl. Acids Res. title The use of native T7 DNA polymerase for site directed mutagenesis. volume 17 year 1989 pages 5408 doi 10.1093 nar 17.13.5408 pmid 2668888 issue 13 pmc 318147 ref but is not recommended for DNA sequencing applications. ref Cite journal author Doublie S., Tabor S., Long A., Richardson C., and Ellenberger T. journal Nature title Crystal Structure of a Bacteriophage T7 DNA Replication complex at 2.2 A Resolution. volume 391 year 1998 pages 251 258 doi 10.1038 34593 pmid 9440688 issue 6664 ref References references Refbegin 2 PBB Further reading citations Refend The PBB Controls template provides controls for Protein Box Bot, please see Template PBB Controls for details. PBB ... citations yes Category DNA replication Enzyme stub ...   more details



  1. DNA polymerase lambda

    PBB geneid 27343 DNA polymerase lambda , also known as POLL , is a protein that, in humans, is encoded by the POLLA gene . ref name entrez cite web title Entrez Gene POLL polymerase DNA directed , lambda ... of the DNA polymerase Family X X family of DNA polymerase s. It is thought to resynthesize missing nucleotides during non homologous end joining , a pathway of DNA repair Double strand breaks DNA ... A, Wilson TE title DNA joint dependence of pol X family polymerase action in nonhomologous end joining ... al. title Implication of DNA polymerase lambda in alignment based gap filling for nonhomologous DNA ... shows that, unlike the DNA polymerases that catalyze DNA replication , pol makes extensive contacts with the 5 phosphate of the downstream DNA strand. This allows the polymerase to stabilize the two ... L, Kunkel TA, Pedersen LC title A structural solution for the DNA polymerase lambda dependent repair of DNA gaps with minimal homology journal Mol. Cell volume 13 issue 4 pages 561 72 year 2004 month ... participate in base excision repair , where it provides backup activity in the absence of DNA polymerase ... EK, Prasad R, Shock DD, Hou EW, Beard WA, Wilson SH title DNA polymerase lambda mediates a back ... Identification of an intrinsic 5 deoxyribose 5 phosphate lyase activity in human DNA polymerase ... Pol is structurally and functionally related to DNA polymerase mu pol , another member of the X ... kappa light chain gene rearrangement is impaired in mice deficient for DNA polymerase mu ... cite journal author Maga G, Villani G, Ramadan K, et al. title Human DNA polymerase lambda ... B, Storck S, Delbos F, Cocea L, Gupta N, Weill JC, Reynaud CA title Two novel human and mouse DNA polymerases ... Interplay between DNA polymerases beta and lambda in repair of oxidation DNA damage in chicken DT40 cells journal DNA Repair Amst. volume 6 issue 6 pages 869 75 year 2007 month June pmid 17363341 ... url ref Besides its catalytic polymerase domain, pol has an 8 kDa domain and a BRCT domain . The 8 ...   more details



  1. DNA polymerase mu

    PBB geneid 27434 DNA polymerase mu is a human protein encoded by the POLM gene . ref name entrez cite web title Entrez Gene POLM polymerase DNA directed , mu url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 27434 accessdate ref Function Pol is a member of the DNA polymerase Family X X family of DNA polymerase DNA polymerases . It participates in resynthesis of damaged or missing nucleotides during the non homologous end joining non homologous end joining NHEJ pathway of DNA repair . ref name pmid15964833 cite journal author Daley JM, Laan RL, Suresh A, Wilson TE title DNA joint dependence of pol X family polymerase action in nonhomologous end joining journal J. Biol. Chem. volume 280 issue 32 pages 29030 7 year 2005 month August pmid 15964833 doi 10.1074 jbc.M505277200 url ref Pol interacts with Ku protein Ku and LIG4 DNA ligase IV , which also participate in NHEJ. ref name pmid12077346 cite journal author Mahajan KN, Nick McElhinny SA, Mitchell BS, Ramsden DA title Association of DNA polymerase mu pol mu with Ku and ligase IV role for pol mu in end joining double strand break repair journal Mol. Cell. Biol. volume 22 issue 14 pages 5194 202 year 2002 month July pmid 12077346 pmc 139779 doi 10.1128 MCB.22.14.5194 5202.2002 url ref It is structurally and functionally related to DNA polymerase lambda pol , and, like pol , pol has a BRCT domain that is thought to mediate interactions with other DNA repair proteins. ref name pmid15242403 cite journal author Nick McElhinny SA, Ramsden DA title Sibling rivalry competition between Pol X family members in V D J recombination and general double strand break repair journal Immunol. Rev. volume ... deoxynucleotidyl transferase TdT , a specialized DNA polymerase that adds random nucleotides to DNA ... is impaired in mice deficient for DNA polymerase mu journal Immunity volume 19 issue 2 pages ... Bertocci B, De Smet A, Weill JC, Reynaud CA title Nonoverlapping functions of DNA polymerases ...   more details



  1. Polymerase (DNA directed), alpha 1

    journal author Dornreiter I, Erdile LF, Gilbert IU, et al. title Interaction of DNA polymerase alpha ...PBB geneid 5422 DNA polymerase alpha catalytic subunit is an enzyme that in humans is encoded by the POLA1 gene . ref name entrez cite web title Entrez Gene POLA1 polymerase DNA directed , alpha 1 url ... synthesis of Okazaki fragments. Interactions DNA dependent polymerase alpha Pol has been shown to Protein ... S year 1997 month Nov. title Phosphorylated retinoblastoma protein stimulates DNA polymerase alpha ... Apr. title Functional association of poly ADP ribose polymerase with DNA polymerase alpha primase ... of replication in the c myc gene, interacts with a catalytic subunit of DNA polymerase alpha and stimulates ... 9 year 2003 pmid 12546699 doi 10.1042 BST0310266 cite journal author Fisher PA, Korn D title DNA polymerase ... protein A on the initiation of DNA synthesis by DNA polymerase alpha primase. journal Mol. Cell ... Martelli AM, Cocco L, Manzoli FA title On the association of DNA polymerase alpha activity with the nuclear ... Human DNA polymerase alpha gene sequences controlling expression in cycling and serum stimulated ... author Hsi KL, Copeland WC, Wang TS title Human DNA polymerase alpha catalytic polypeptide binds ConA ... author Wang TS, Pearson BE, Suomalainen HA, et al. title Assignment of the gene for human DNA polymerase ... requires DNA polymerase delta. journal J. Biol. Chem. volume 263 issue 1 pages 501 10 year 1988 pmid 3335506 doi cite journal author Wong SW, Wahl AF, Yuan PM, et al. title Human DNA polymerase alpha ... of human DNA polymerase alpha by alpha 1 antichymotrypsin. journal Cancer Res. volume 46 issue ... populations of DNA polymerase alpha in HeLa cells. journal J. Mol. Biol. volume 192 issue 1 pages ... C, Ulrich RG title Inhibition of DNA replication and DNA polymerase alpha activity by monoclonal anti DNA polymerase alpha immunoglobulin G and F ab fragments. journal Biochemistry volume 24 issue ... S, Hu SZ, et al. title Intracellular localization of human DNA polymerase alpha with monoclonal ...   more details



  1. Hepatitis B virus DNA polymerase

    Image HBV genome.png right thumb 300px The genome organisation of HBV. The genes overlap. ORF P, in blue, encodes Hepatitis B virus DNA polymerase Hepatitis B virus DNA polymerase is a hepatitis B viral protein . ref name pmid10051501 cite journal author Ono Nita SK, Kato N, Shiratori Y, et al. title YMDD motif in hepatitis B virus DNA polymerase influences on replication and lamivudine resistance A study by in vitro full length viral DNA transfection journal Hepatology volume 29 issue 3 pages 939 45 year 1999 month March pmid 10051501 doi 10.1002 hep.510290340 ref ref name pmid8903366 cite journal author Shaw T, Mok SS, Locarnini SA title Inhibition of hepatitis B virus DNA polymerase by enantiomers of penciclovir triphosphate and metabolic basis for selective inhibition of HBV replication by penciclovir journal Hepatology volume 24 issue 5 pages 996 1002 year 1996 month November pmid 8903366 doi 10.1002 hep.510240504 ref It encodes a DNA polymerase . References reflist Viral proteins virus stub Category Viral proteins es Virus de la hepatitis B ADN polimerasa ...   more details



  1. RNA polymerase I

    RNA polymerase I also called Pol I is, in eukaryotes , the enzyme that only Transcription genetics transcribes ribosomal RNA but not 5S ribosomal RNA 5S rRNA , which is synthesized by RNA Polymerase III ... author Russell J, Zomerdijk JC title The RNA polymerase I transcription machinery journal Biochem. Soc. Symp. issue 73 pages 203 16 year 2006 pmid 16626300 ref Pol I consists of 8 14 protein subunits polypeptides . All 12 subunits have identical or related counterparts in RNA polymerase II Pol II and RNA polymerase III Pol III . rDNA transcription is confined to the nucleolus where several hundreds of copies of rRNA genes are present, arranged as tandem head to tail repeats. Pol I transcribes one ... by snoRNA . The 5S ribosomal RNA is transcribed by RNA polymerase III Pol III . Because of the simplicity of Pol I transcription, it is the fastest acting polymerase. Regulation of rRNA transcription ... Pol I into terminating transcription and dissociating from the DNA and the new transcript. Evidence ... mechanisms have been identified, ensuring proper control of rRNA synthesis and Pol I mediated ... Pol I will bind and start transcription of rRNA. Changes in rRNA transcription can also occur via changes in the rate of transcription. While the exact mechanism through which Pol I increases its ... without changes in the number of actively transcribed rDNA. Pol I transcription cycle In the process of Transcription genetics transcription by any polymerase , there are three main stages Initiation the construction of the RNA polymerase complex on the gene s promoter biology promoter with the help ... polymerase complex. Initiation Initiation the construction of the polymerase complex on the promoter. Pol I requires no TATA box in the promoter, instead relying on a UCS U pstream C ontrol S equence .... Rrn3 TIF IA gets phosphorylated and binds Pol I Pol I binds to the UBF SL1 complex via Rrn3 TIF IA, and transcription starts. Elongation As Pol I escapes and clears the promoter, UBF and SL1 remain ...   more details



  1. Transcription termination factor, RNA polymerase I

    author Muth V, Nadaud S, Grummt I, Voit R title Acetylation of TAF I 68, a subunit of TIF IB SL1, activates RNA polymerase I transcription. journal EMBO J. volume 20 issue 6 pages 1353 62 year 2001 ... SW, Hoffmann Rohrer U, Grummt I title Cloning and functional characterization of PTRF, a novel protein ... pnas.242603899 cite journal author Humphray SJ, Oliver K, Hunt AR, et al. title DNA sequence and analysis ...   more details



  1. Polymerase

    Image Taq polimerase.png thumb Structure of Taq polymerase Taq DNA polymerase A polymerase EC 2.7.7.6 7 19 48 49 is an enzyme whose central function is associated with polymer s of nucleic acid s such as RNA and DNA . The primary function of a polymerase is the polymerization of new DNA or RNA against an existing DNA or RNA template in the processes of DNA replication replication and Transcription genetics transcription . In association with a cluster of other enzymes and proteins, they take nucleotide s from solvent, and catalyse the synthesis of a polynucleotide sequence against a nucleotide template strand using base pairing interactions. It is an accident of history that the enzymes responsible for the catalytic production of other biopolymer s are not also referred to as polymerases. One particular polymerase, from the thermophile thermophilic bacteria bacterium , Thermus aquaticus Taq Protein data bank PDB http www.rcsb.org pdb cgi explore.cgi?pid 288631034363198&pdbId 1BGX 1BGX , EC 2.7.7.7 is of vital commercial importance due to its use in the polymerase chain reaction , a widely used technique of molecular biology . Other well known polymerases include Terminal Deoxynucleotidyl Transferase TDT , which lends diversity to antibody heavy chains Reverse Transcriptase , an enzyme used by RNA retrovirus es like HIV , which is used to create a complementary strand to the preexisting strand of viral RNA before it can be integrated into the DNA of the host biology host cell biology cell . It is also a major target for antiviral drugs. See also DNA polymerase DNA polymerase I DNA polymerase II DNA polymerase III holoenzyme DNA Polymerase IV DinB SOS response SOS repair polymerase RNA polymerase RNA polymerase I RNA polymerase II RNA polymerase III T7 RNA polymerase Phosphotransferases DNA replication Category EC 2.7.7 Category Enzymes ca Polimerasa da Polymerase de Polymerase es Polimerasa fr Polym rase it Polimerasi pl Polimerazy pt Polimerase tr Polimeraz uk ...   more details



  1. Haplogroup I (Y-DNA)

    Infobox haplogroup name I map Haplogroup I Y DNA .PNG origin date 25,000 30,000 years BP origin place Europe or Southwest Asia ancestor Haplogroup IJ Y DNA IJ descendants Haplogroup I1 Y DNA I1 , Haplogroup I2 Y DNA I2 mutations M170, M258, P19, P38, P212, U179 members Bosnia and Herzegovina 65 , Bosnia ... I the letter I, not the number 1 is a Human Y chromosome DNA haplogroup Y chromosome DNA haplogroup , a subgroup of haplogroup IJ Y DNA haplogroup IJ , itself a derivative of Haplogroup IJK Y DNA Haplogroup IJK . Y DNA Haplogroup I is predominantly a European haplogroup today. It represents ... the modern French and Italian populations. I M438 Main Haplogroup I2 Y DNA Image HaplogroupI2.png ... Y DNA Haplogroup I and its Subclades refend External links Phylogenetic tree and distribution maps http www.isogg.org tree ISOGG HapgrpI08.html Y DNA Haplogroup I and Its Subclades from the International ...?tuId 12 Frequency Distributions of Y DNA Haplogroup I and its subclades with Video Tutorial http ... Lists http archiver.rootsweb.com th index Y DNA HAPLOGROUP I Y DNA HAPLOGROUP I Archives http lists.rootsweb.com index other DNA Y DNA HAPLOGROUP I.html Y DNA HAPLOGROUP I Mailing List at Rootsweb.com ... dgarvey DNA hg YCC I.html YCC Haplogroup I page I1a now considered I1 M253 , I1b now considered ... I , from National Geographic Lichtenstein Cave DNA Tests I2b2 Y DNA found in Bronze Age skeletons ... of I L38 aka I2b2 Y DNA DEFAULTSORT Haplogroup I Y Dna Category Human Y DNA haplogroups I Category Human evolution ca Haplogrup I del cromosoma Y hum de Haplogruppe I Y DNA es Haplogrupo I ADN Y fr Haplogroupe I hi it Aplogruppo I Y DNA ru I Y ... populations. Haplogroup I Y chromosomes have also been found among some populations of the Near East ... ancestor for the I clade was estimated by Karafet and colleagues in 2008 as 22.2 k.a. 22,200 years ... 18385274 issue 5 pmc 2336805 ref placing the Haplogroup I founding event approximately contemporaneous ...   more details



  1. DNA

    of part of a DNA double helix Deoxyribonucleic acid IPAc en audio en us Deoxyribonucleic acid.ogg d i k s i r a b . n ju k l e . k s d DNA is a nucleic acid containing ... by a helicase and topoisomerase . Next, one DNA polymerase produces the Replication fork leading strand copy. Another DNA polymerase binds to the Replication fork lagging strand . This enzyme ... is recreated by an enzyme called DNA polymerase . This enzyme makes the complementary strand by finding ... Introduction to genetics Other uses File DNA Structure Key Labelled.pn NoBB.png thumb right 340px The structure of the DNA double helix . The atoms in the structure are colour coded by element and the detailed ... s with the exception of RNA virus es . The DNA segments carrying this genetic information are called gene s. Likewise, other DNA sequences have structural purposes, or are involved in regulating the use of this genetic information. Along with RNA and proteins , DNA is one of the three major macromolecules that are essential for all known forms of life. DNA consists of two long polymers of simple ... stretches of DNA into the related nucleic acid RNA in a process called transcription genetics transcription . Within cells DNA is organized into long structures called chromosome s. During cell division these chromosomes are duplicated in the process of DNA replication , providing each cell ... , and protist s store most of their DNA inside the cell nucleus and some of their DNA in organelle s, such as mitochondria ... and archaea store their DNA only in the cytoplasm . Within the chromosomes, chromatin proteins such as histone s compact and organize DNA. These compact structures guide the interactions between DNA and other proteins, helping control which parts of the DNA are transcribed. Properties File DNA chemical structure.svg thumb 300px Chemical structure of DNA. Hydrogen bond s shown as dotted lines. DNA is a long polymer made from repeating units called nucleotide s. ref cite book last Saenger ...   more details



  1. RNA polymerase

    also Transcription genetics DNA polymerase T7 RNA polymerase RNA polymerase I RNA polymerase II RNA polymerase III Alpha amanitin References Reflist 2 External links http www.dnai.org DNAi DNA Interactive ...infobox enzyme Name DNA Directed RNA Polymerase EC number 2.7.7.6 CAS number 9014 24 8 IUBMB EC number 2 7 7 6 GO code 0034062 image width 260px caption Check the EC number again RNA polymerase RNAP or RNApol ... with ATP followed by GTP, UTP, and then CTP . In contrast to DNA polymerase , RNAP includes helicase activity, therefore no separate enzyme is needed to unwind DNA. RNA polymerase action Binding ... binding to heat shock genes. After binding to the DNA, the RNA polymerase switches from a closed ... plays an important part in polymerase activity because of the unwinding and rewinding of DNA ... complex is stabilized, RNA polymerase synthesizes an RNA strand to establish a DNA RNA heteroduplex ..., RNA polymerase must maintain promoter contacts while unwinding more downstream DNA for synthesis ... the proofreading activity found in DNA polymerase, there is evidence of that RNAP will halt at mismatched ... PJ coauthors Platt T. title Rho independent termination dyad symmetry in DNA causes RNA polymerase ... of RNA they synthesize RNA polymerase I synthesizes a pre rRNA 45S 35S in yeast , which matures into 28S ... author Grummt I. title Regulation of mammalian ribosomal gene transcription by RNA polymerase I. journal ... AJ, Jensen MB, Dalmay T, Baulcombe DC title RNA polymerase IV directs silencing of endogenous DNA ... thumb T7 RNA polymerase producing a mRNA green from a DNA template. The protein is shown as a purple ..., and shares considerable homology to DNA polymerase . ref cite journal author Hedtke year 1997 title ... evolved from DNA polymerase and are not directly related to the multi subunit polymerases described ... 2.7.7.6 http bioteachnology.com enzyme rna polymerase synthesis rna from dna template RNA Polymerase ... RNA chains using DNA gene s as templates, a process called Transcription genetics transcription . RNA ...   more details



  1. Taq polymerase

    . This heating step also inactivates the DNA polymerase that was in use before the discovery of Taq polymerase, the Klenow fragment of the DNA Polymerase I from E. coli . Use of the thermostable Taq ... also DNA polymerase I DNA replication References Reflist Commons category Taq polymerase DEFAULTSORT Taq Polymerase Category Microbiology Category DNA replication Category EC 2.7.7 ar ...DISPLAYTITLE Taq polymerase image taq.png thumb 228px right Structure of Taq DNA polymerase bound to a DNA octamer Taq polymerase IPAc en icon t k p l m r e z is a thermostable DNA polymerase ... directed enzymatic amplification of DNA with a thermostable DNA polymerase. journal Science journal ... Therefore it replaced the DNA polymerase from Escherichia coli E. coli originally used in PCR. ref ... expression, purification, and enzymatic characterization of full length Thermus aquaticus DNA polymerase ... cite journal author Tindall KR and Kunkel TA year 1988 title Fidelity of DNA synthesis by the Thermus aquaticus DNA polymerase journal Biochemistry volume 27 pages 6008 13 pmid 2847780 doi 10.1021 ... long&pmid 16306270 issn ref Some thermostable DNA polymerases have been isolated from other thermophilic bacteria and archaea, such as Pfu DNA polymerase Pfu DNA polymerase , possessing a proofreading ... polymerase to the reaction. This led to exponential DNA replication , ref cite journal author Mullis ... 1976 title Deoxyribonucleic acid polymerase from the extreme thermophile Thermus aquaticus journal ... or simply Taq , and is frequently used in polymerase chain reaction PCR , a method for greatly amplifying short segments of DNA . T. aquaticus is a bacterium that lives in hot springs and hydrothermal vent s, and Taq polymerase was identified ref name Chien et al. as an enzyme able to withstand the protein ... at 95 C and 9 minutes at 97.5 C, and can replicate a 1000 base pair strand of DNA in less than 10 ... DJ title Coupled protein domain motion in Taq polymerase revealed by neutron spin echo spectroscopy ...   more details



  1. DNA˛

    episode episodes 3 episode list Infobox animanga Footer nihongo DNA D N A D En Ei ..., spanning a total of five tank bon volumes. DNA was adapted into a 12 episode anime television ... and animation director for the series was Kumiko Takahashi . DNA has been broadcast in Japan by Animax ... children that carry the Mega Playboy DNA, causing them and all their descendants to each have 100 ... to deal with. Karin reveals to Junta that she is a DNA Operator . Her job is to make alterations in people s DNA that will change their nature for the greater good of society. She intends to shoot the original Mega Playboy with a DCM DNA Control Medicine bullet that will alter his DNA in order ... Playboy DNA stabilizes more and more. nihongo Karin Aoi Aoi Karin anime voices Miina Tominaga Jessica Calvello A sixteen year old DNA Operator from the overcrowded future, sent back in time in order ... to Kotomi? I Want to Give You All That I Have You ve Always Been at My Side The Shot to Ryuuji s Heart ... episode titles Another Time Machine The Thing Forgotten a Century from Now I ll Never Forget You Manga The DNA manga was published in Japanese magazine Weekly Sh nen Jump 1993 No. 36 through 1994 No. 29 ... Category Sh nen manga Link GA es ca DNA cs DNA de DNA es DNA fr DNA ko DNA id DNA it DNA ja D N A pt DNA ru DNA fi DNA sv DNA tl DNA zh DNA ...   more details



  1. A-DNA

    Image A DNA orbit animated small.gif right frame The A DNA structure. A DNA is one of the many possible double helical structures of DNA . A DNA is thought to be one of three biologically active double helical structures along with B DNA B and Z DNA . It is a right handed double helix fairly similar to the more common and well known B DNA form, but with a shorter more compact helical structure. It appears likely that it occurs only in dehydrated samples of DNA, such as those used in crystallographic experiments, and possibly is also assumed by DNA RNA hybrid helices and by regions of double stranded RNA. Structure A DNA is fairly similar to B DNA given that it is a right handed double helix with major ... turn. This results in a deepening of the major groove and a shallowing of the minor. Predicting A DNA structure An algorithm for predicting the propensity of a sequence to flip from B DNA to A DNA ... cite journal author Basham B, Schroth GP, Ho PS title An A DNA triplet code thermodynamic rules for predicting A and B DNA journal Proc Natl Acad Sci USA volume 92 issue 14 pages 6464 6468 year ... in the hydration of DNA surfaces can be used to distinguish between sequences that form A and B DNA. From this, a triplet code of A DNA propensities was derived as energetic rules for predicting A DNA formation. This code correctly predicted 90 of A and B DNA sequences in crystals and correlates with A DNA formation in solution. Thus, with our previous studies on Z DNA, we now have a single method to predict the relative stability of sequences in the three standard DNA duplex conformations. ref name Basham1995 blockquote Comparison Geometries of the Most Common DNA Forms Image A DNA, B DNA and Z DNA.png right thumb Side view of A , B , and Z DNA. Image B&Z&A DNA formula.jpg thumb right 250px The helix axis of A , B , and Z DNA. class wikitable Geometry attribute A form B form Z form Helix ... also Mechanical properties of DNA DNA B DNA Z DNA External links http www.tulane.edu biochem nolan ...   more details




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