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Encyclopedia results for Protein C
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Protein C





Encyclopedia results for Protein C

  1. Protein C

    Distinguish C peptide C reactive protein protein kinase C PBB geneid 5624 Protein  C , also known ... it binds to thrombin , another protein heavily involved in coagulation, and protein  C s activation ... C because it was the third protein peak C that elution eluted from a DEAE Sepharose Ion chromatography ... between Cys sup 183 sup and Cys sup 319 sup . File Protein C 1D schematic.png thumb 410px alt A tube ... bond between cysteine residues 183 and 319. Protein domain Domain structure of preproprotein C top ... protein  C zymogen comprises slightly modified forms of the protein. ref name mosnier2 rp 2383 ... effect of thrombomodulin on the activation of protein  C, the protein may be said ... C by forming an salt bridge protein and supramolecular electrostatic bridge from protein  ... coagulation thrombin left and protein C right pathways. In the blood coagulation pathway ... on the cell membrane of the platelet. Thrombin also cross over into the protein C pathway by converting protein C into APC. APC in turn converts factor V into Vi, and VIIIa into VIIIi. Finally APC ... form of human activated protein  C rhAPC , i.e. it is a protein produced by recombinant ... protein  C by a new protein. A possible function for bovine protein S journal J. Biol. Chem ... C work Haematologic Technologies Inc. accessdate 2010 09 14 url http www.haemtech.com Zymogens Protein ... Category Hematology da Protein C de Protein C es Prote na C fr Prot ine C hr Protein C id Protein C it Proteina C nl Proteine C pl Bia ko C pt Prote na C ru C sv Protein C Good article ... isbn 0 7514 0499 3 oclc doi url accessdate ref rp 6822 ref name morton is a zymogen ic inactive protein ... in humans and other animals. Activated protein  C APC performs these operations primarily by proteolysis ... of serine in its active site . ref name nicolaes rp 35 In humans, protein  C is encoded by the PROC ... of protein  C is a vitamin K dependent glycoprotein which circulates in blood Blood plasma plasma ...   more details



  1. Protein C deficiency

    Infobox Disease Name Protein C deficiency Image Caption DiseasesDB 10807 ICD10 ICD9 ICD9 289.81 ICDO OMIM 176860 MedlinePlus eMedicineSubj med eMedicineTopic 1923 MeshID D020151 Protein C deficiency is a rare ... C title Deficiency of protein C in congenital thrombotic disease journal J. Clin. Invest. volume 68 ... belongs to a group of genetic disorders known as thrombophilia s. The prevalence of protein C deficiency has been estimated to about 0.2 to 0.5 of the general population. Protein C deficiency is associated ... 1 15 pmc 1592479 PMC 1592479 ref Pathophysiology The main function of protein C is its anticoagulant ... types of protein C mutations that lead to protein C deficiency ref name pmid16968541 Type I Quantitative defects of protein C low production or short protein half life Type II Qualitative defects, in which ..., factors V VIII and others have been described. The majority of people with protein C deficiency ... sixteen cases of homozygous protein C deficiency had been described two abnormal copies of the gene, leading to absence of functioning protein C in the bloodstream . This may manifest itself as purpura ... who develop a venous clot regardless of underlying cause. ref Goldenberg NA, Manco Johnson MJ. Protein C deficiency. Haemophilia. 2008 Nov 14 6 1214 21 ref Studies have demonstrated an increased risk of recurrent venous thromboembolic events in patients with protein C deficiency. Therefore, long term ... Johnson MJ. Protein C deficiency. Haemophilia. 2008 Nov 14 6 1214 21 ref Homozygous protein C defect constitutes a potentially life threatening disease, and warrants the use of supplemental protein C concentrates. fact date April 2008 Liver transplant may be considered curative for homozygous protein C deficiency. ref Pediatr Transplant. 2009 Mar 13 2 251 4. Epub 2008 May 11. Long term survival of a child with homozygous protein C deficiency successfully treated with living donor liver transplantation. ref References reflist Hematology Category Hematology fr D ficit en prot ine C pl Wrodzony ...   more details



  1. Surfactant protein C

    Protein C cite web url http www.physics.uwaterloo.ca research zleonenko data amyloidosis 20review.pdf title Surfactant Protein C SP C Mini Review author Hane F authorlink coauthors date format work ..., pathologies and synthesis of SP C accessdate 2009 03 08 Dead link date October 2010 bot H3llBot InterPro content IPR015091 biochem stub Category Protein domains ...   more details



  1. Activated protein C resistance

    Infobox Disease Name Activated protein C resistance Image Caption DiseasesDB ICD10 ICD9 ICD9 289.81 ICDO OMIM 188055 MedlinePlus eMedicineSubj eMedicineTopic MeshID D020016 Activated protein C resistance is a hemostasis hemostatic disorder characterized by a poor anticoagulant response to activated protein C APC . This results in an increased risk of venous thrombosis , which can cause myocardial infarction heart attacks , stroke s, and other problems with circulation. ref cite journal author Dahlb ck B title The discovery of activated protein C resistance journal J. Thromb. Haemost. volume 1 issue 1 pages 3 9 year 2003 pmid 12871530 doi 10.1046 j.1538 7836.2003.00016.x ref The disorder can be acquired or inherited, the hereditary form having an autosomal Dominance genetics dominant inheritance pattern. ref cite journal pmid 7902898 year 1993 month December author Koster T, Rosendaal FR, De Ronde H, Bri t E, Vandenbroucke JP, Bertina RM title Venous thrombosis due to poor anticoagulant response to activated protein C Leiden Thrombophilia Study volume 342 issue 8886 8887 pages 1503 6 issn 0140 6736 journal Lancet doi 10.1016 S0140 6736 05 80081 9 ref Pathophysiology Image Protein C anticoagulant.jpg thumb Protein C Anticoagulant Pathway Thrombin escaping from a site of vascular injury ... its procoagulant properties and instead becomes a potent activator of protein C. Activated protein C ... clot formation to sites of vascular injury. T Thrombin, PC Protein C, Activated Protein C APC, PS Protein S Activated protein C with protein S as a cofactor degrades Factor V a and Factor VIII a. Activated protein C resistance is the inability of protein C to cleave Factor V a and or Factor VIII ... and acquired activated protein C resistance journal Semin Vasc Med volume 3 issue 1 pages 33 46 year ... conditions Up to 64 of patients with venous thromboembolism might have activated protein C resistance. ref cite journal author Sheppard DR title Activated protein C resistance the most common risk ...   more details



  1. Endothelial protein C receptor

    PBB geneid 10544 Endothelial protein C receptor EPCR also known as activated protein C receptor APC receptor ... protein C activated protein C receptor journal J Biol Chem volume 269 issue 42 pages 26486 91 year ... cell protein C receptor EPCR journal FEBS Lett volume 458 issue 1 pages 77 80 year 1999 month ... Gene PROCR protein C receptor, endothelial EPCR url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ... C , a serine protease activated by and involved in the blood coagulation pathway. The encoded protein is an N glycosylated type I membrane protein that enhances the activation of protein C. ref name ... web title Entrez Gene PROCR protein C receptor, endothelial EPCR url http www.ncbi.nlm.nih.gov sites ... protein C receptor gene and thrombophilia. journal Thromb. Haemost. volume 98 issue 3 pages 564 ... cite journal author Laszik Z, Mitro A, Taylor FB, et al. title Human protein C receptor is present primarily on endothelium of large blood vessels implications for the control of the protein C pathway ... author Ye X, Fukudome K, Tsuneyoshi N, et al. title The endothelial cell protein C receptor EPCR functions as a primary receptor for protein C activation on endothelial cells in arteries, veins, and capillaries ... implications of the intron exon organization of the human endothelial cell protein C activated protein C receptor EPCR gene comparison with the structure of CD1 major histocompatibility complex ... of the human endothelial protein C receptor gene. journal Gene volume 238 issue 2 pages 367 73 ... PF, Smirnov MD, Esmon CT title Mechanisms by which soluble endothelial cell protein C receptor modulates protein C and activated protein C function. journal J. Biol. Chem. volume 275 issue 8 pages ..., Esmon CT title Metalloproteolytic release of endothelial cell protein C receptor. journal J. Biol ... author Liaw PC, Mather T, Oganesyan N, et al. title Identification of the protein C activated protein C binding sites on the endothelial cell protein C receptor. Implications for a novel mode of ligand ...   more details



  1. Protein C inhibitor

    PBB geneid 5104 Protein C inhibitor PCI, SERPINA5 is a ser ine p rotease in hibitor serpin which limits the expression of protein C . It is a possible biomarker for prostate cancer . ref cite web url http ... Recurrence Using a Panel of Serum Proteomic Biomarkers ref Interactions Protein C inhibitor ... Lilja H year 1994 month Feb. title Complex formation between protein C inhibitor and prostate ... antigen and protein C inhibitor journal Eur. J. Biochem. volume 238 issue 1 pages 88 96 publisher ... laysource laydate quote ref Protein C ref name pmid2551064 cite journal doi 10.1016 0049 3848 89 ... Purification and characterization of plasma protein C inhibitor journal Thromb. Res. volume 55 issue ..., Mosher D F, Villoutreix B O, Stenflo J year 2000 month Dec. title Activated protein C protein C inhibitor ... Complex formation between urokinase and plasma protein C inhibitor in vitro and in vivo journal ... K, Hayashi T title cis elements required for expression of human protein C inhibitor gene in HepG2 ... PA, et al. title Protein C inhibitor in human body fluids. Seminal plasma is rich in inhibitor antigen ... JC, Chung DW title Organization of the gene coding for human protein C inhibitor plasminogen activator ..., et al. title Elucidating the structural chemistry of glycosaminoglycan recognition by protein C inhibitor ... residue at position 316 in human protein C inhibitor. journal Thromb. Res. volume 59 issue ..., Berrettini M, Griffin JH title Purification and characterization of plasma protein C inhibitor. journal ... 8 cite journal author Laurell M, Stenflo J title Protein C inhibitor from human plasma characterization ... for human protein C inhibitor. A new member of the plasma serine protease inhibitor superfamily ... Suzuki K, Nishioka J, Hashimoto S title Protein C inhibitor. Purification from human plasma and characterization ... journal author Christensson A, Lilja H title Complex formation between protein C inhibitor and prostate ... M, Ecke S, et al. title Inhibition of acrosin by protein C inhibitor and localization of protein ...   more details



  1. Protein kinase C

    Other uses PKC disambiguation Protein kinase C also known as PKC EC number 2.7.11.13 is a family of enzyme s that are involved in controlling the function of other protein s through the phosphorylation ... protein kinase C superfamily journal Biochem. J. volume Pt 2 issue pages 281 92 series 332 ... transduction pathway as phospholipase C . On the other hand, atypical a PKCs including protein kinase M and isoforms require neither Ca sup 2 sup nor diacylglycerol for activation. The term protein kinase C usually refers to the entire family of isoforms. Isozymes conventional require DAG, Ca ... neither Ca sup 2 sup nor DAG for activation PRKCI PKC Gene PRKCI Protein kinase C, zeta PKC ... The consensus sequence of protein kinase C enzymes is similar to that of protein kinase A , since ... Upon activation, protein kinase C enzymes are translocated to the plasma membrane by RACK protein s membrane bound receptor for activated protein kinase C proteins . The protein kinase C enzymes are known ... Function of Protein kinase C redirects here A multiplicity of functions have been ascribed to PKC ... 2 at Serine 121 by Protein Kinase C Controls c Jun mediated Activation of Transcription. J Biol Chem ... cat multi Protein kinase C PKC activators MeshName protein kinase c Serine threonine specific protein kinases DEFAULTSORT Protein Kinase C Category EC 2.7.11 Category Protein kinases cs Proteinkin za ... , novel, and atypical. ref name pmid7737456 cite journal author Nishizuka Y title Protein kinase C and lipid signaling for sustained cellular responses journal FASEB J. volume 9 issue 7 pages ... abstract ref Conventional c PKCs contain the isoforms , sub I sub , sub II sub , and . These require ... core of the protein kinase A PKA allows for different functions to be processed PKB also known as Akt ... PKC isoforms, and , are 84 identical Selbie et al., 1993 . Of the over 30 protein kinase structures ... structure with a sheet comprising the N terminal lobe and an helix constituting the C terminal ...   more details



  1. C-reactive protein

    PBB geneid 1401 C reactive protein CRP is a protein found in the blood, the levels of which rise in response to inflammation i.e. C reactive protein is an acute phase protein . Its physiological role is to bind ... or protein C . History and nomenclature CRP was originally discovered by Tillett and Francis in 1930 ... concentration.png thumb 450px Reference ranges for blood tests , showing C reactive protein ... The C reactive protein journal Journal of Emergency Medicine accessdate 2009 09 24 url http www.sciencedirect.com ... DM, Liu K, Tian L, Greenland P title Narrative review assessment of C reactive protein in risk ... risk of diabetes , ref cite journal author Pradhan AD title C reactive protein, interleukin ..., C reactive protein levels, and incidence of diabetes journal Diabetes year 2007 month March ... disease, ref cite journal author John Danesh title C reactive protein and other circulating ... C reactive protein a critical cardiovascular risk marker . CRPhealth.com. ... I, Gray GA, Sabin CA, Jenvey MC, Kolstoe SE, Thompson D, Wood SP title Targeting C reactive protein ... Rosuvastatin to prevent vascular events in men and women with elevated C reactive protein journal ... was useful for determining statin benefit. ref cite web title C reactive protein concentration ..., Nordestgaard BG title Genetically elevated C reactive protein and ischemic vascular disease journal ... S last3 Darnell first3 B last4 Allison first4 DB title Baseline serum C reactive protein is associated ... C reactive protein and the risk of incident colorectal cancer journal Journal of the American Medical ... protein gallery References Reflist 30em External links MedlinePlusEncyclopedia 003356 C reactive ... The Role of C Reactive Protein American Heart Association MeshName C Reactive Protein PDB Gallery ... citations no DEFAULTSORT C Reactive Protein Category Acute phase proteins Category Blood tests ... Protein dv es Prote na C reactiva fr Prot ine C r active hr C reaktivni protein ...   more details



  1. Protein kinase M zeta/Protein kinase C zeta

    PBB geneid 5590 Protein kinase C, zeta PKC also known as PRKCZ is an enzyme which in humans is encoded ... M, Libien JM, Weinstein G, Tcherapanov A, Sacktor TC title Protein kinase M zeta synthesis from a brain mRNA encoding an independent protein kinase C zeta catalytic domain. Implications for the molecular ... title Atypical protein kinase C in neurodegenerative disease I PKMzeta aggregates with limbic neurofibrillary ... alpha 1 associates with and is phosphorylated by isoforms of protein kinase C journal Biochem. Biophys ... Sep. title Protein kinase C isotypes controlled by phosphoinositide 3 kinase through the protein ... that links the small GTPases Rac and Cdc42 to atypical protein kinase C journal Genes Cells ... protein kinase C interacting protein journal Mol. Cell Biol. Res. Commun. volume 2 issue 1 pages ... facilitate coupling of protein kinase C zeta to Raf 1 negative regulation by 14 3 3 phosphorylation ... elegans UNC 76 protein involved in axonal outgrowth is a protein kinase C zeta interacting ... F J year 2000 month Aug. title Protein kinase C micro is regulated by the multifunctional chaperon ... J year 2001 month Feb. title MEK5, a new target of the atypical protein kinase C isoforms in mitogenic ... of fluorescent phorbol esters in studies of protein kinase C membrane interactions. journal Chem. Phys ... the activity of protein kinase C. journal Curr. Med. Chem. volume 11 issue 21 pages 2883 902 year ... regulatory domain, followed by a hinge region and a C terminus C terminal catalytic domain. Second ... of protein kinase C PKC and, lacking an autoinhibitory regulatory domain of the full length PKC ... thought of as being a cleavage product of full length PKC , an atypical isoform of protein kinase C PKC . Like other PKC isoforms, PKC is a serine threonine kinase that adds phosphate groups to target protein s. It is atypical in that unlike other PKC isoforms, PKC does not require calcium or diglyceride ... author Ling D, Benardo L, Serrano P, Blace N, Kelly M, Crary J, Sacktor T title Protein kinase ...   more details



  1. Myosin binding protein C, cardiac

    PBB geneid 4607 Myosin binding protein C, cardiac , also known as MYBPC3 , is a protein which in humans ... protein C, cardiac url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch ... S title Phosphorylation switches specific for the cardiac isoform of myosin binding protein C a modulator ... 311 url ref Function MYBPC3 encodes the cardiac isoform of myosin binding protein C. Myosin binding protein C is a myosin associated protein found in the cross bridge bearing zone C region of A bands ... binding protein C gene journal Rev Port Cardiol volume 24 issue 12 pages 1463 76 year 2005 ... cardiac myosin binding protein C variant associated with cardiomyopathies in South Asia journal ... cite journal author Starr R, Offer G title The interaction of C protein with heavy meromyosin ... pmc 1184031 cite journal author Moos C, Feng IN title Effect of C protein on actomyosin ATPase. journal ... L, Bercovici J, et al. title Cardiac myosin binding protein C gene splice acceptor site mutation ... protein C a modulator of cardiac contraction? journal EMBO J. volume 14 issue 9 pages 1952 60 year 1995 ... cardiac myosin binding protein C gene MYBPC3 and identification of mutations predicted to produce .... title Novel splice donor site mutation in the cardiac myosin binding protein C gene in familial hypertrophic ... caused by mutations in the cardiac myosin binding protein C gene. journal J. Med. Genet ... protein C and late onset familial hypertrophic cardiomyopathy. journal N. Engl. J. Med. volume 338 ... heavy chain and in the cardiac myosin binding protein C genes in a family with hypertrophic cardiomyopathy ... C, Beckmann JS, Guicheney P, Dufour C, Bercovici J, Dausse E, Berebbi Bertrand I, Wisnewsky C, Pulvenis D title Mapping of a novel gene for familial hypertrophic cardiomyopathy to chromosome 11 ... monophosphate cAMP dependent protein kinase Protein kinase A PKA upon adrenergic stimulation may ... Cardim N, Perrot A, Santos S, Morgado P, P dua M, Ferreira S, Reis RP, Monteiro C, Ferreira T, Correia ...   more details



  1. Pulmonary surfactant-associated protein C

    PBB geneid 6440 Pulmonary surfactant associated protein C is a protein that in humans is encoded by the SFTPC ... title The pulmonary surfactant protein C SP C precursor is a type II transmembrane protein journal Biochem ... domain containing C terminal part of pro surfactant protein C binds to an unfolded poly val transmembrane ..., pulmonary associated protein C url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 6440 accessdate ref Pulmonary surfactant associated protein C is a membrane protein ... Gil J title Lipid protein interactions of hydrophobic proteins SP B and SP C in lung surfactant ... translational processing of surfactant protein C. journal Pediatric pathology & molecular medicine ... pulmonary surfactant protein SP C. journal Biochemistry volume 29 issue 24 pages 5807 14 year 1990 ... journal author Hatzis D, Deiter G, deMello DE, Floros J title Human surfactant protein C genetic homogeneity ... AE, Wert SE, et al. title A mutation in the surfactant protein C gene associated with familial ... type 2. Humans and animals born lacking SP C tend to develop progressive interstitial pneumonitis. The PBB Summary template is automatically maintained by Protein Box Bot. See Template PBB Controls ... T, Robertson B title Artificial surfactants based on analogues of SP B and SP C. journal Pediatric ... journal author Nogee LM title Alterations in SP B and SP C expression in neonatal lung disease. journal ... T, Johansson J, Persson P, et al. title Hydrophobic surfactant associated polypeptides SP C is a lipopeptide .... title Two SP C genes encoding human pulmonary surfactant proteolipid. journal J. Biol. Chem. volume ... surfactant protein SP5 isolation, characterization, and cDNA and amino acid sequences. journal Proc ... al. title Altered stability of pulmonary surfactant in SP C deficient mice. journal Proc. Natl. Acad ... Associated Protein B Membrane proteins The PBB Controls template provides controls for Protein ... inspection no update protein box yes update summary yes update citations yes gene 8 stub ...   more details



  1. APC/C activator protein CDH1

    of APC c and therefore contributes to the regulation of protein degradation, by providing substrate ... are located between the middle of the protein and the C terminus C terminal end. They have a conserved ...protein Name SCF Fbw7 ubiquitin ligase complex image SCF Fbw7 .PNG width caption Symbol Cdh1, Hct1 AltSymbols ... of the substrate Adaptor proteins adaptor protein of the anaphase promoting complex APC in the budding yeast Saccharomyces cerevisiae . Functioning as an activator of the APC C, Cdh1 regulates the activity ... box D box and an additional degradation signal KEN box , Cdh1 recruits them in a C box dependent mechanism ..., E. Klann, P.Zhang year 2008 title The adaptor protein of the anaphase promoting complex Cdh1 is essential ... The anaphase promoting complex cylosome APC c is an Ubiquitin ligase ubiquitin E3 ligase complex ... be dephosphorylated by Cdc14 . In the dephosphorylated form it can interact with APC c and build ... A and B, the kinase AuroraB, Plk1, Skp2 and Cdc20, another APC c co activator. ref name Engelbert cite ... ubiquitin dependent pathways. The protein phosphatase Cdc14 dephosphorylates Cdh1 and therefore ... Fbw7 ubiquitin ligase complex. Fbw7 is also a WD repeat protein like Cdh1. The model for Cdh1 can ... MODEL Repository of annotated three dimensional protein structure homology models. journal ... The following structural informations are based on the cdh1 protein of Saccharomyces cerevisiae also named Hct1. Cdh1 is a cdc20 homolog and is Frizzy related Drosophila . The protein sequence of cdh1 consists of 566 amino acid s and has a molecular weight of 62.8 kDa. Cdh1 comprises different Protein ... APC c complex and the various Enzyme substrate substrates . ref name Uniprot P53197 Cdh1 cite ... and APC c Binding In the N terminus N terminal region at amino acid position 55 61 the cdh1 protein contains a C Box structural motif motif , which is required for the association with the APC c complex. Especially the residue R56 seems to be important for the binding to APC c in vitro and Cdh1 ...   more details



  1. File:Protein Dynamics Cytochrome C 2NEW small.gif

    Move to Commons Summary By Richard Wheeler User Zephyris Zephyris 2006. 17 NMR structures of cytochrome c illustrating the dynamics of a protein in solution. Made with pymol and PDB 2NEW . Licensing GFDL self with disclaimers migration relicense ...   more details



  1. Protein S

    bi00572a026 ref Function The best characterized function of Protein S is its role in the anti coagulation pathway, where it functions as a cofactor to Protein C in the inactivation of factor V Factors ... J, Tans G, Griffin J H year 1999 month Dec. title C terminal residues 621 635 of protein S are essential ... of antithrombin III, protein c and protein S journal Hamostaseologie volume 22 issue 2 pages 14 24 ... author Guglielmone HA, Vides MA title A novel functional assay of protein C in human plasma and its ... of protein C. Its role in Ca2 binding and biological activity journal J. Biol. Chem. volume 263 issue ...PBB geneid 5627 Protein S is a vitamin K dependent plasma glycoprotein synthesized in the endothelium. In the circulation, Protein S exists in two forms a free form and a complex form bound to complement system complement protein C4b. In humans, protein S is encoded by the PROS1 gene . ref name pmid2944113 ... J, Wydro R title Isolation and sequence of the cDNA for human protein S, a regulator of blood coagulation ... C and S are located on chromosomes 2 and 3, respectively journal Somat. Cell Mol. Genet. volume ... in Seattle, Wash, first discovered protein S and arbitrarily named it after the city of its ... title A comparison of human prothrombin, factor IX Christmas factor , factor X Stuart factor , and protein ... of protein S, a gamma carboxyglutamic acid containing protein from bovine and human plasma ... journal author Castoldi E, Hackeng TM title Regulation of coagulation by protein S journal Curr. Opin ... url ref Protein S can bind to negatively charged phospholipids via the carboxylated Gla domain GLA domain . This property allows Protein S to function in the removal of cells which are undergoing ... membrane. These negatively charged phospholipids are recognized by phagocytes such as macrophages . Protein ... the apoptotic cell and the phagocyte. The bridging property of Protein S enhances the phagocytosis ... occurring. Pathology Mutations in the PROS1 gene can lead to Protein S deficiency ...   more details



  1. Protein

    About a class of molecules protein as a nutrient Protein nutrient other uses pp semi indef pp move indef File Myoglobin.png thumb right 250px A representation of the 3D structure of the protein myoglobin showing colored alpha helix alpha helices . This protein was the first to have its structure solved ... compound compounds consisting of one or more polypeptide s typically folded into a globular protein globular or fibrous protein fibrous form in a biologically functional way. A polypeptide is a single ... acids in a protein is defined by the DNA sequence sequence of a gene , which is encoded in the genetic ... or even during synthesis, the residues in a protein are often chemically modified by post translational ... together to achieve a particular function, and they often associate to form stable protein complex complex ... to be single structure. Other proteins undergo large rearrangements from one protein conformation ... signaling event . Thus, the structure of a protein serves as a medium through which to regulate either the function of a protein or activity of an enzyme. Not all proteins requiring a folding process ... ingested protein into free amino acids that are then used in metabolism. Proteins were first described ... Jakob Berzelius in 1838. Early nutritional scientists such as the German Carl von Voit believed that protein ... urease was in fact a protein. ref name Sumner1926 The first protein to be protein sequencing .... The first protein structure s to be solved were hemoglobin and myoglobin , by Max Perutz and John ... may be protein purification purified from other cellular components using a variety of techniques such as ultracentrifugation .... Methods commonly used to study protein structure and function include immunohistochemistry , site ... protein folding the statistical analysis techniques employed to calculate a protein s probable ... bond that links individual amino acids to form a protein polymer Most proteins consist of linear polymer ... it is the combined effect of all of the amino acid side chains in a protein that ultimately ...   more details



  1. Protein A

    Protein A is a 40 60 Atomic mass unit kDa MSCRAMM surface protein originally found in the cell wall of the bacteria Staphylococcus aureus . It is encoded by the spa gene and its regulation is controlled by DNA topology, cellular osmolarity, and a two component regulatory system two component system called ArlS ArlR. It has found use in biochemical research because of its ability to bind immunoglobulins . It binds proteins from many of mammalian species, most notably IgG s. It binds with the Fc region ... antibody function on their surface which disrupts opsonization and phagocytosis . Protein A antibody .... Protein A binds with moderate affinity to human IgM , IgA and IgE as well as to mouse IgG3 and IgG1 .... Other antibody binding proteins In addition to Protein A, other immunoglobulin binding bacterial proteins such as Protein G , Protein A G and Protein L are all commonly used to purify, immobilize or detect immunoglobulins. Role in pathogenesis As a pathogen Staphylococcus aureus utilizes Protein .... Protein A helps inhibit phagocytic engulfment and acts as an immunological disguise. Mutants of S. aureus lacking protein A are more efficiently phagocytosed in vitro, and mutants in infection models ... 197 1125 1139. ref Research Recombinant Staphylococcal Protein A is often produced in E. coli for use in immunology and other biological research. One recombinant form of Protein A is called MabSelect ... 18114994AE.pdf ref . Protein A is often coupled to other molecules such as a fluorescent dye , enzyme ... widely utilized coupled to magnetic, latex and agarose beads. Protein A is often immobilized onto a solid support and used as reliable method for purifying total IgG from crude protein mixtures ... of antibodies. Immunoprecipitation studies with protein A conjugated to beads are also commonly used to purify proteins or protein complexes indirectly through antibodies against the protein or protein complex of interest. References reflist Category Proteins Category Staphylococcaceae de Protein ...   more details



  1. File:Protein C anticoagulant.jpg

    ShouldBeSVG diagram Summary Frank Axelsson Licensing PD self date October 2006 ...   more details



  1. Protein?protein interaction

    ref ref Prieto C, De Las Rivas J 2006 . APID Agile Protein Interaction DataAnalyzer. Nucleic ... forms a protein protein interaction with the ribonuclease protein. The contacts between the two proteins are shown as coloured patches. 250px Protein protein interactions occur when two or more protein s bind together, often to carry out their function biology biological function . Many ... molecular machines that are built from a large number of protein components organised by their protein protein interactions. Protein interactions have been studied from the perspectives of biochemistry ... graph theory networks . Indeed, protein protein interactions are at the core of the entire ... to the inside of that cell by protein protein interactions of the signaling molecules. This process ... e.g. cancer s . Proteins might interact for a long time to form part of a protein complex , a protein may be carrying another protein for example, from cytoplasm to cell nucleus nucleus or vice versa in the case of the nuclear pore importins , or a protein may interact briefly with another protein just to modify it for example, a protein kinase will add a phosphate to a target protein . This modification of proteins can itself change protein protein interactions. For example, some proteins ... while bromodomain s specifically recognise acetylated lysines. In conclusion, protein protein interactions ... approaches. Methods to investigate protein protein interactions Main Methods to investigate protein protein interactions As protein protein interactions are so important there are a multitude of methods ... hybrid screening can be used to detect novel protein protein interactions. There are also many biophysical ... represents a protein and each blue line between them is an interaction. 200px Visualization of protein protein interaction networks is a popular application of scientific visualization techniques. Although protein interaction diagrams are common in textbooks, diagrams of whole cell protein interaction ...   more details



  1. Protein?protein interaction prediction

    Expert subject Biology date November 2008 Protein protein interaction prediction is a field combining ... pairs or groups of proteins. Understanding protein protein interaction s is important for the investigation of intracellular signaling pathways, modelling of protein complex structures and for gaining ... screening two hybrid systems, protein fragment complementation assays PCA , affinity purification mass spectrometry , protein microarray s, fluorescence resonance energy transfer FRET and Microscale ... proteins have fused orthologues in other organisms. In addition, a number of bound protein ... profiling ref Pellegrini finds pairs of protein families with similar patterns of presence ... process, but does not necessarily imply physical interaction. Prediction of co evolved protein ... distance matrices are calculated for each protein in the hypothesized interacting pair. If the matrices ... patterns This method ref Aytuna ref Ogmen builds a library of known protein protein interfaces from the Protein Data Bank PDB , where the interfaces are defined as pairs of polypeptide fragments ... between pairs of targets, providing that they have a known structure i.e. present in the Protein Data ... to assess the likelihood that a particular potential protein interaction is a true positive ... might interact. 3D template based protein complex modelling This method ref Aloy ref Chen ref Fukuhara ref Kittichotirat makes use of known protein complex structures to predict as well as structurally model interactions between query protein sequences. The prediction process generally starts by employing a sequence based method e.g Interolog to search for protein complex structures that are homologous ... protein interactions but also suggests models of how proteins interact structurally, which can provide ... for this method to makes a prediction is limited to a relatively small number of known protein complex ... learning problem. In this paradigm the known protein interactions supervise the estimation of a function ...   more details



  1. Rop protein

    http www.proteopedia.org wiki index.php Rop protein Rop also known as repressor of primer is a small homodimeric four helix bundle protein formed by the antiparallel interaction of two helix turn helix monomers. The protein is expressed in Escherichia coli as a mechanism for regulating the gene copy number s of plasmid s. The Rop protein s structure has been solved to high resolution. ref Banner Due to its small size and known structure, Rop has been used in protein design work to rearrange its helical topology and reengineer its loop regions. ref Kresse In general, the four helix bundle has been extensively used in de novo protein design work as a simple model to understand the relationship between amino acid sequence and structure. References note Banner Banner DW, Kokkinidis M, Tsernoglou D. 1987 . Structure of the ColE1 rop protein at 1.7 A resolution. J Mol Biol 196 3 657 75. note Kresse Kresse HP, Czubayko M, Nyakatura G, Vriend G, Sander C, Bloecker H. 2001 . Four helix bundle topology re engineered monomeric Rop protein variants with different loop arrangements. Protein Eng 14 11 897 901. protein stub Category Proteins de Rop Protein ...   more details



  1. Protein splicing

    Protein splicing is an intramolecular reaction of a particular protein in which an internal protein segment called an intein is removed from a precursor protein with a ligation of C terminal and N terminal external proteins called extein s on both sides. The splicing junction of the precursor protein is mainly a cysteine or a serine , which are amino acid s containing a nucleophilic side chain . The protein splicing reactions which are known now do not require exogenous cofactors or energy sources such as adenosine triphosphate ATP or guanosine triphosphate GTP . Normally, splicing is associated only with Splicing genetics pre mRNA splicing . Types of inteins The type of the splicing proteins is categorized into four classes maxi intein, mini intein, trans splicing intein, and alanine intein. The maxi inteins are N and C terminal splicing domains containing an endonuclease domain. The mini inteins are typical N and C terminal splicing domains however, the endonuclease domain is not present. The trans splicing inteins are split inteins which are divided into N termini and C termini. Alanine inteins have the splicing junction of an alanine instead of a cysteine or a serine, in both of which the protein splicing occurs. History Protein splicing was reported by two groups Anraku and Stevens in 1990. They both discovered a Saccharomyces cerevisiae VMA1 in a precursor of a vacuolar H sup sup ATPase . The amino acid sequence of the N and C termini corresponded to 70 of that of a vacuolar H sup sup ATPase from other organisms, while the amino acid sequence of the central position corresponded to 30 of that of the yeast HO nuclease External links http starokadomskyy.narod.ru work intein eng.html Short rewiev http starokadomskyy.narod.ru Protein splicing eng.pdf Starokadomskyy PL. Protein Splicing, 2007 http www.neb.com neb inteins.html Protein splicing mechanism and intein structure MeshName Protein Splicing Category Proteins Category Protein biosynthesis ru ...   more details



  1. Protein S deficiency

    thrombosis. Protein S deficiency is the underlying cause of a small proportion of cases of disseminated ... Protein S Deficiency And Thrombophilia at proteinsdeficiency.com http www.med.uiuc.edu hematology PtProtS.htm Protein S Deficiency University of Illinois Articles cite journal author ten Kate ... PROS1 c.1113T GG frameshift mutation in a family with mixed type I type III protein S deficiency ...   more details



  1. Protein family

    A protein family is a group of evolution arily related protein s, and is often nearly synonymous with gene family . The term protein family should not be confused with Family biology family as it is used ... have similar protein structure three dimensional structures , functions, and significant ... a powerful tool for identifying the members of protein families. Currently, over 60,000 protein ... of protein families, and still counting , Genome Biology 4, 401, 2003. http genomebiology.com 2003 4 2 401 ref although ambiguity in the definition of protein family leads different researchers to wildly varying numbers. Terminology and usage As with many biological terms, the use of protein ... between these situations, Dayhoff introduced the concept of a protein superfamily. ref Dayhoff, M.O., Computer analysis of protein sequences, Fed. Proc. 33, 2314 2316, 1974. ref ref Dayhoff, M.O., McLaughlin, P.J., Barker, W.C., and Hunt, L.T., Evolution of sequences within protein superfamilies,Naturwissenschaften 62, 154 161, 1975. ref ref Dayhoff, M.O., The origin and evolution of protein superfamilies, Fed. Proc. 35, 2132 2138, 1976. ref Other terms such as protein class , protein group , and protein ... exactly how these terms are being used in a particular context. Protein domains and motifs The concept of protein family was conceived at a time when very few protein structures or sequences ... c . Since that time, it was found that many proteins comprise multiple independent structural and functional units or Protein domain domains . Due to evolutionary shuffling , different domains in a protein have evolved independently. This has led, in recent years, to a focus on families of protein domains. A number of online resources are devoted to identifying and cataloging such domains see list of links at the end of this article . Regions of each protein have differing functional constraints features critical to the structure and function of the protein . For example, the active ...   more details



  1. RACK protein

    Unreferenced stub auto yes date December 2009 RACK is an acronym for Receptor for Activated C Kinase and is responsible for the binding of active forms of the protein kinase C PKC family of enzyme s. See also RICK protein , Receptor for Inactive C Kinase. There are different RACKs for different isoforms of PKC, which thus mediate differential subcellular targeting of the isoforms. Inactive forms of PKC occlude the RACK binding site with a pseudo RACK peptide sequence RACKs share 47 identity with the beta subunit of G proteins RACKs represent one of the many ways in which a cell can use signalling complexes to manipulate the specificity of interactions within intracellular signalling cascades DEFAULTSORT Rack Protein Category Proteins Protein stub ...   more details



  1. Protein tag

    Unreferenced date December 2009 Protein tags are peptide sequences genetically grafted onto a recombinant protein. Often these tags are removable by chemical agents or by enzymatic means, such as proteolysis or intein splicing. Tags are attached to proteins for various purposes. Affinity tags are appended to proteins so that they can be purified from their crude biological source using an affinity technique. These include chitin binding protein CBP , maltose binding protein MBP , and glutathione S transferase GST . The poly histidine His tag is a widely used protein tag it binds to metal matrices. Solubilization tags are used, especially for recombinant proteins expressed in chaperone deficient species such as E. coli , to assist in the proper folding in proteins and keep them from precipitating ... of the protein to afford different resolution across a particular separation technique. Often, these consist ... include V5 tag , Myc c myc tag , and HA tag . These tags are particularly useful for western blotting ... tags are used to give visual readout on a protein. GFP and its variants are the most commonly ... if folded, colorless if not . Protein tags find many other usages, such as specific enzymatic ... to produce multifunctional modifications of the protein. However, with the addition of each tag comes the risk that the native function of the protein may be abolished or compromised by interactions with the tag. List of protein tags Isopeptag a covalently binding and genetically encoded tag BCCP Myc tag Calmodulin tag FLAG tag HA tag His tag Maltose binding protein tag Nus tag Glutathione S transferase tag Green fluorescent protein tag Thioredoxin tag S tag Softag 1 Softag 3 Strep tag SBP tag Ty tag Applications Affinity purification Protein array Western blotting Protein methods DEFAULTSORT Protein Tag Category Molecular biology Category Biochemistry methods Category Proteins Category Laboratory techniques de Protein Tag fr tiquette biologie ja ...   more details




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