merge Phosphorylation discuss Talk Proteinphosphorylation Merger proposal date January 2009 Proteinphosphorylation is a post translational modification of proteins in which a serine, a threonine or a tyrosine residue is phosphorylation phosphorylated by a protein kinase by the addition of a covalently bound phosphate group. Regulation of proteins by phosphorylation is one of the most common modes of regulation of protein function, and is often termed phosphoregulation . In almost all cases of phosphoregulation, the protein switches between a phosphorylated and an unphosphorylated form, and one of these two is an active form, while the other one is inactive, respectively. Functions of phosphorylation In some reactions, the purpose of phosphorylation is to activate or volatize a molecule, increasing its energy so it is able to participate in a subsequent reaction with a negative Gibbs free energy free energy change. All kinases require a divalent metal ion such as Magnesium Mg sup 2 sup or Manganese Mn sup 2 sup to be present, which stabilizes the high energy bonds of the donor molecule usually ATP or ATP derivative and allows phosphorylation to occur. In other reactions, phosphorylation of a protein substrate can Enzyme Inhibitor inhibit its activity as when AKT phosphorylates the enzyme GSK 3 . One common mechanism for phosphorylation mediated enzyme inhibition was demonstrated in the tyrosine kinase called src pronounced sarc , see Src gene . When src is phosphorylated on a particular tyrosine, it folds on itself, and thus masks its own kinase domain, and is thus shut off . In still other reactions, phosphorylation of a protein causes it to be bound to other proteins which have recognition domains for a phosphorylated tyrosine , serine , or threonine motif. As a result of binding a particular protein, a distinct signaling system may be activated or inhibited. In the late 1990s it was recognized that phosphorylation of some proteins causes them to be degraded by the ATP ... more details
merge Proteinphosphorylation discuss Talk Phosphorylation Merger proposal date January 2009 Image Phosphorylated ... of a phosphate PO sub 4 sub sup 3 sup group to a protein or other organic molecule. Phosphorylation activates or deactivates many protein enzymes. Proteinphosphorylation in particular plays a significant ... on the subject, largely on proteinphosphorylation . Proteinphosphorylation History In 1906, Phoebus ... organisms. ref name Cozzon 1988 cite journal author Cozzone AJ title Proteinphosphorylation in prokaryotes ... annurev.mi.42.100188.000525 url ref ref name Stock 1989 cite journal title Proteinphosphorylation ... called protein kinase kinases phosphorylation and phosphatase s dephosphorylation are involved ... and dephosphorylation. Reversible phosphorylation results in a Protein structure conformational ... 1989 ref name Ciesla 2011 ref name Deutscher 2005 cite journal title Ser Thr Tyr proteinphosphorylation .... One such example of the regulatory role that phosphorylation plays is the P53 protein ... protein interaction via recognition protein domain domains . Phosphorylation of the cytosolic ... Proteinphosphorylation sites There are thousands of distinct phosphorylation sites in a given cell ... Phosphorylation often occurs on multiple distinct sites on a given protein. Since phosphorylation ... details on the different types of phosphorylation Within a protein, phosphorylation can occur on several ... whether a protein is phosphorylated at a particular site. Antibodies bind to and detect phosphorylation ... members recruit the coactivator CREB binding protein and trigger its phosphorylation journal J Biol ... Qualitative and quantitative analyses of proteinphosphorylation in naive and stimulated mouse ... journal title Quantitative analysis of synaptic phosphorylation and protein expression journal Mol. Cell ... of proteinphosphorylation by mass spectrometry requires isotopic internal standard approaches. ref ... DM title Quantitative methods for the analysis of proteinphosphorylation in drug development journal ... more details
Orphan date February 2009 A phosphorylation cascade is a sequence of events where one enzyme phosphorylates another, causing a chain reaction leading to the phosphorylation of thousands of proteins. This can be seen in signal transduction of hormone messages. References cite book author Freeman, Scott et al. title Index I Biological Science Vol. 2 publisher Pearson Education, Inc. year 2005 Category Cell biology biochem stub ... more details
is the site of oxidative phosphorylation in eukaryote s. The NADH and succinate generated in the citric acid cycle are oxidized, releasing energy to power the ATP synthase . Oxidative phosphorylation ... use a range of different nutrients, almost all aerobic organism s carry out oxidative phosphorylation ... biochemistry fermentation processes such as anaerobic glycolysis . During oxidative phosphorylation ... ATP. In eukaryote s, these redox reactions are carried out by a series of protein complex es within ... main protein complexes are involved, whereas in prokaryotes many different enzymes are present, using ... ATP synthase . This enzyme uses this energy to generate ATP from adenosine diphosphate ADP , in a phosphorylation ... of the enzyme the ATP synthase is a rotary mechanical motor. Although oxidative phosphorylation ... of energy transfer by chemiosmosis further Chemiosmosis and Bioenergetics Oxidative phosphorylation ... cite journal author Mitchell P, Moyle J title Chemiosmotic hypothesis of oxidative phosphorylation journal .... The amount of energy released by oxidative phosphorylation is high, compared with the amount ... 30 and 36 ATPs are produced by the oxidative phosphorylation of the 10 NADH and 2 succinate molecules .... These processes use both soluble and protein bound transfer molecules. In mitochondria, electrons are transferred within the intermembrane space by the water soluble electron transfer protein cytochrome ... of an iron atom that the protein holds within a heme group in its structure. Cytochrome c ... principles from protein structure journal Curr. Opin. Struct. Biol. volume 14 issue 6 pages 642 ... in this potential is then used by ATP synthase to produce ATP. Oxidative phosphorylation in the eukaryotic ... I , is the first protein in the electron transport chain. ref name Hirst cite journal author Hirst ..., but it seems to involve conformational change s in complex I that cause the protein to bind protons ... of both the citric acid cycle and the electron transport chain. Complex II consists of four protein ... more details
Primary sources date November 2009 Confusing date November 2009 File Substrate level phosphorylation generating ATP.svg thumb 200px Substrate level phosphorylation exemplified with ADP ATP. Substrate level phosphorylation is a type of metabolism that results in the formation and creation of adenosine ... group. An alternative way to create ATP is through oxidative phosphorylation , which takes place during the process of cellular respiration , in addition to the substrate level phosphorylation that occurs during glycolysis and the Krebs cycle. During oxidative phosphorylation, NADH is oxidized ... phosphorylation uses electrochemical or chemiosmotic gradient of protons H sup sup across the inner ... phosphorylation. Category Cellular respiration Unlike oxidative phosphorylation , oxidation and phosphorylation are not joined in the process of Substrate level phosphorylation, although both types of phosphorylation result in ATP and reactive intermediates are most often gained in course of oxidation processes in catabolism . However, usually most of the ATP is generated by oxidative phosphorylation in aerobic or anaerobic respiration. Substrate level phosphorylation serves as fast source of ATP ... of Substrate level phosphorylation occurs in the cytoplasm of cells as part of glycolysis and in mitochondria ... level phosphorylation two and only two 1,3 bisphosphoglycerate are converted to 3 phosphoglycerate ... from oxidative phosphorylation by transfer of the high energy phosphate on 1,3 bisphosphoglycerate ... level phosphorylation occurs later by means of the reaction of phosphenolpyruvate PEP to pyruvate ... of substrate level phosphorylation occurs as Guanosine triphosphate GTP is created from GDP by transfer ... to ADP in another substrate level phosphorylation event. The reaction is catalyzed by the enzyme Succinyl CoA synthetase . Another form of Substrate level phosphorylation is also seen in working ... to produce ATP. Then the ATP releases giving chemical energy. Apart from this Substrate level phosphorylation ... more details
Pfam box Symbol SpA Name Protein A image Protein A 1DEE 1L6X.png width caption Structure of a domain of protein A as a three helix bundle binding to the heavy variable chain of a VH3 human Fab ref name ... JB, Silverman GJ. title Crystal structure of a Staphylococcus aureus protein A domain complexed with the Fab ... month May pmid 10805799 doi pmc 25840 ref left. Minimized protein A bound to Fc fragment of Rituximab ... April pmid 10754313 doi ref Pfam InterPro SMART PROSITE SCOP 1DEE TCDB OPM family OPM protein PDB PDB2 1dee , PDB2 1l6x Protein A is a 40 60 Atomic mass unit kDa MSCRAMM surface protein originally found ... opsonization and phagocytosis . Protein A antibody binding Protein A binds with high affinity to human IgG1 and IgG2 as well as mouse IgG2a and IgG2b. Protein A binds with moderate affinity to human ... or IgD , nor will it react to mouse IgM, IgA or IgE. The capacity of protein A to bind antibodies .... The protein A used for production of antibodies in bio pharmaceuticals is most commonly bound to a stationary phase chromatography resin. Other antibody binding proteins In addition to Protein A, other immunoglobulin binding bacterial proteins such as Protein G , Protein A G and Protein L ... Staphylococcus aureus utilizes Protein A, along with a host of other proteins and surface factors to aid its survival and, thus, virulence. Protein A helps inhibit phagocytic engulfment and acts as an immunological disguise. Mutants of S. aureus lacking protein A are more efficiently phagocytosed ... toxin. J. Exp. Med. 2003 197 1125 1139. ref Research Recombinant Staphylococcal Protein ... form of Protein A is called MabSelect ref http www.gelifesciences.com aptrix upp00919.nsf Content 17D93C2E6A580E57C1257628001CE677 file 18114994AE.pdf ref . Protein A is often coupled to other molecules ... beads. Protein A is often immobilized onto a solid support and used as reliable method for purifying total IgG from crude protein mixtures such as blood serum serum or ascites fluid, or coupled with one ... more details
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 ... in Seattle , Washington first discovered protein S and arbitrarily named it after the city ... , and protein S journal Biochemistry volume 16 issue 4 pages 698 706 year 1977 month February pmid ... Characterization of protein S, a gamma carboxyglutamic acid containing protein from bovine and human ... 10.1021 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 ... cite journal author Castoldi E, Hackeng TM title Regulation of coagulation by protein S journal Curr ... MOH.0b013e328309ec97 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 ... . Protein S can bind to the negatively charged phospholipids and function as a bridging molecule between the apoptotic cell and the phagocyte. The bridging property of Protein S enhances the phagocytosis ... such as inflammation occurring. Pathology Mutations in the PROS1 gene can lead to Protein S deficiency ... of, and molecular defects underlying, inherited protein S deficiency in the general population ... P, Fuentes Prior P, Hurtado B, Sala N title Molecular basis of protein S deficiency journal Thromb ... Protein S has been shown to Proteinprotein interaction interact with Factor V . ref name pmid10593904 ... Y, Rosing J, Tans G, Griffin J H year 1999 month Dec. title C terminal residues 621 635 of protein ... of protein S to factor Va associated with inhibition of prothrombinase that is independent of activated ... more details
About a class of molecules protein as a nutrient Protein nutrient other uses pp semi indef File Myoglobin.png thumb right 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 by X ray crystallography ... into a globular protein globular or fibrous protein fibrous form, facilitating a biological function ... sequence sequence of amino acids in a protein is defined by the DNA sequence sequence of a gene , which ... . Shortly after or even during synthesis, the residues in a protein are often chemically ... stable protein complex es. One of the most distinguishing features of polypeptides is their ability ... 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 require a folding process ... protein into free amino acids that are then used in metabolism. Proteins were first described ... 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 ... 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 tertiary ... chains in a protein that ultimately determines its three dimensional structure and its chemical reactivity ... linked in the protein chain, an individual amino acid is called a residue, and the linked series of carbon, nitrogen, and oxygen atoms are known as the main chain or protein backbone. ref Murray ... more details
The M1 protein is a matrix protein of the influenza virus . It forms a coat inside the viral envelope . The M1 protein binds to the viral ribonucleic acid RNA . The binding is not specific to any RNA sequence, and is performed via a peptide sequence rich in base chemistry basic amino acid s. It also has multiple regulatory functions, performed by interaction with the components of the host cell. The mechanisms regulated include a role in the export of the viral ribonucleoprotein s from the host cell nucleus , inhibition of viral transcription genetics transcription , and a role in the virus assembly and budding . The protein was found to undergo phosphorylation in the host cell. The M1 protein forms a layer under the patches of host cell membrane that are rich with the viral hemagglutinin , neuraminidase and M2 protein M2 transmembrane protein s, and facilitates budding of the mature viruses. See also H5N1 genetic structure Sources and notes references Viral proteins DEFAULTSORT M1 Protein Category Membrane biology Category Peripheral membrane proteins Category Influenza Category Viral structural proteins es Prote na M1 ... more details
of further effects may be divided into direct proteinphosphorylation and protein synthesis In direct proteinphosphorylation, PKA directly either increases or decreases the activity of a protein. In protein synthesis, PKA first directly activates CREB , which binds the cAMP response element , altering the Transcription genetics transcription and therefore the synthesis of the protein. In general ... can be down regulated by phosphorylation. Downregulation of protein kinase A occurs by a feedback mechanism ...In cell biology , Protein kinase A PKA refers to a family of enzyme s whose activity is dependent on cellular levels of cyclic AMP cAMP . PKA is also known as cAMP dependent protein kinase EC number 2.7.11.11 . Protein kinase A has several functions in the cell, including regulation of glycogen , sugar , and lipid metabolism . It should neither be confused with AMP activated protein kinase which, although ... R, Li H, et al. title AMP activated protein kinase inhibits alkaline pH and PKA induced apical vacuolar ... regulatory and two catalyst catalytic Protein subunit subunit s. Under low levels of cAMP, the holoenzyme ..., activation of adenylate cyclase s by G protein coupled receptor s coupled to Gs alpha subunit G sub ... catalytic subunits can then catalyse the transfer of ATP terminal phosphates to protein substrate biochemistry substrate s at serine , or threonine amino acid residues . This phosphorylation usually ... of cAMP that can activate protein kinase A. Anchorage The 2 regulatory subunits of protein kinase A are important for localizing the kinase inside the cell. With the aid of A kinase anchoring protein A kinase anchor protein AKAP , AKAP binds both to the regulatory subunits and to either a component ... subcellular compartment. The catalytic function of protein kinase A would sometimes couple with the AKAP ... s activity. Function PKA phosphorylates other proteins , altering their function. As protein expression varies from cell type to cell type, the proteins that are available for phosphorylation will depend ... more details
Image Ch4 kinases.jpg thumb 250px right Proteinphosphorylation A protein kinase is a kinase enzyme that modifies other protein s by chemically adding phosphate groups to them phosphorylation . Phosphorylation usually results in a functional change of the target protein substrate biochemistry substrate ... genome contains about 500 protein kinase genes and they constitute about 2 of all human genes. ref name pmid12471243 cite journal author Manning G, Whyte DB. et al. title The protein kinase complement ... doi 10.1126 science.1075762 url ref Protein kinases are also found in bacteria and plants. Up ... protein kinases that phosphorylate other amino acids, including histidine kinase s that phosphorylate histidine residues. ref cite journal author Besant PG, Tan E, Attwood PV title Mammalian protein ... pii S1357272502002571 ref Regulation Because protein kinases have profound effects on a cell, their activity is highly regulated. Kinases are turned on or off by phosphorylation sometimes by the kinase itself cis phosphorylation autophosphorylation , by binding of Enzyme activator activator protein s or Enzyme inhibitor inhibitor protein s, or small molecules, or by controlling their location in the cell relative to their substrates. Structure main Protein kinase domain The catalytic subunits of many protein kinases are highly conserved sequence conserved , and several structures have been ... structural biology in drug discovery protein kinases journal Curr. Pharm. Des. volume 10 issue ... pages content.php?CPD 2004 00000010 00000010 0002B.SGM issn ref Eukaryotic protein kinases are enzymes ... name pmid12734000 cite journal author Hanks SK title Genomic analysis of the eukaryotic protein kinase ... name pmid7768349 cite journal author Hanks SK, Hunter T title Protein kinases 6. The eukaryotic protein ... long&pmid 7768349 issn ref ref name pmid1835513 cite journal author Hunter T title Protein kinase ... Protein kinase catalytic domain sequence database identification of conserved features of primary ... more details
D and CDK4 forms a complex that inactivates the tumor suppressor protein retinoblastoma through phosphorylation. Phosphorylation of pRb releases transcription factors such as E2Fs which then activate a series of events that allow entry into the S phase and promotes cell division. However, Phosphorylation of pRb leads to a conformational change to E2F as well. However,protein CDKN2B p15 and protein p16 are inhibit cyclin D1 from binding to the CDKs. Another important Protein tumor suppressor is p21 and what it does is block the CDKs at any point in the cell cycle. Protein p21 is under control of p53 tumor suppressor protein. Some of the biological functions of protein p53 are as a transcriptional factor and also it regulates apoptosis. The stochometric level of protein p53 in the cell is very ...The p16 protein p16 is a cyclin dependent kinase CDK inhibitor that decelerates the cell cycle by inactivating the CDKs that phosphorylate retinoblastoma protein Rb . Function The protein p16 is a cyclin ... the Cyclin dependent kinase that phosphorylates the retinoblastoma protein pRb . Both p16 and retinoblastoma pRb are important tumor suppressors that regulate the cell cycle. In addition to protein p16 ... is protein p53 . Cyclin D1 promotes the progression of the cell cycle to the S phase by cyclin D dependent kinases CDK4 CDK6 . However, the activities of CDK4 CDK6 are restricted by protein p16 since protein p16 is a potent inhibitor of Cyclin dependent kinase CDKs . Protein Rb, p16 and cyclin D1 are major ... G1 phase to S phase is blocked by protein p16, which is a potential tumor suppressor that acts to disrupt ... the amount of protein or in other words it facilitates degradation in DNA damage checkpoint. Oncogenic ... protein p16 is overexpression it leads to cervical cancer because of the functional inactivation of pRb by human papillomavirus E7 protein. In the case of cervical cancer PRB is functionally inactivated by HPV oncoproteins and that results in p16 overexpression. In addition to that, overexpression of the protein ... more details
SMART PROSITE MEROPS SCOP 1uur TCDB OPM family OPM protein CAZy CDD The STAT protein Signal Transducer ... phosphorylation for nuclear retention. The unphosphorylated STAT proteins shuttles between cytosol ... kinase that phosphorylates a specific tyrosine residue in the STAT protein which promotes the protein ... site GAS motif and activate Transcription genetics transcription of these genes. The STAT protein ... DNA binding protein Additional images gallery Image Jakstat pathway.svg Key steps of the JAK STAT pathway Image PDB 1bgf EBI.jpg Structure of the amino terminal protein interaction domain of STAT ... of the amino terminal protein interaction domain of STAT 4 journal Science volume 279 issue 5353 ... gene marelle.htm Drosophila Signal transducer and activator of transcription protein at 92E The Interactive Fly Transcription factors g4 JAK STAT signaling pathway DEFAULTSORT Stat Protein Category ... transduction de STAT Proteine fr STAT id Protein STAT ja ... more details
Pfam box Symbol PTS HPr protein Name Phosphotransferase system, phosphocarrier HPr protein image PDB 1ptf EBI.jpg width caption Structure of histidine containing phosphotransfer protein HPr from Streptococcus faecalis . ref name pmid8126724 cite journal author Jia Z, Vandonselaar M, Hengstenberg W, Quail JW, Delbaere LT title The 1.6 A structure of histidine containing phosphotransfer protein HPr from Streptococcus faecalis journal J. Mol. Biol. volume 236 issue 5 pages 1341 55 year 1994 month March pmid 8126724 doi 10.1016 0022 2836 94 90062 0 url ref Pfam PF00381 InterPro IPR000032 SMART PROSITE PDOC00318 SCOP 1ptf PDB PDB2 1cm2 , PDB2 1cm3 , PDB2 1fu0 , PDB2 1ggr , PDB2 1hdn , PDB2 1j6t , PDB2 1jem , PDB2 1k1c , PDB2 1ka5 , PDB2 1kkl Phosphocarrier HPr protein is a small cytoplasm cytoplasmic protein that is a component of the phosphoenolpyruvate dependent sugar phosphotransferase system PTS . ref name PUB00003612 cite journal author Postma PW, Lengeler JW, Jacobson GR title Phosphoenolpyruvate carbohydrate phosphotransferase systems of bacteria journal Microbiol. Rev. volume 57 issue 3 pages 543 594 year 1993 pmid 8246840 pmc 372926 ref ref name PUB00000073 cite journal author Meadow ND, Fox DK, Roseman S title The bacterial phosphoenolpyruvate glycose phosphotransferase system journal Annu. Rev. Biochem. volume 59 issue 1 pages 497 542 year 1990 pmid 2197982 doi 10.1146 annurev.bi.59.070190.002433 ... carbohydrate transport system in bacteria. The PTS catalyses the phosphorylation of sugar ... system, which in turn transfers it to a phosphocarrier protein HPr . ref name PUB00003342 cite ... form of the histidine containing phosphocarrier protein HPr from Escherichia coli ... protein that includes a EIII Fru IIA domain and in some cases also a EI domain. There is a conserved ... by an ATP dependent protein kinase, a process which probably plays a regulatory role in sugar transport. References reflist InterPro content IPR000032 Category Protein families ... more details
Protein database may refer to Any protein structure database Any protein sequence database Exact names Protein NIH Protein database of the National Institute of Health Protein Database of Bio Synthesis, Inc. disambig ... more details
is also a protein kinase C PKC substrate. Phosphorylation of serine 41 on GAP 43 by PKC regulates neurite ...PBB geneid 2596 Growth Associated Protein 43 also known as Gap43 is a protein that in humans is encoded ... protein because it is expressed at high levels in Axon Growth and development neuronal growth cones during morphogenesis development , during axonal regeneration and is phosphorylation phosphorylated after long term potentiation LTP and after learning. This protein is considered a crucial component ... growth associated protein 43 url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 2596 accessdate ref Synonyms Gap 43 is also referred to as protein F1 neuromodulin neural phosphoprotein B 50 axonal membrane protein GAP 43 calmodulin binding protein P 57 nerve growth related peptide GAP43 neuron growth associated protein 43 Function GAP 43, is a nervous tissue specific cytoplasm ic protein that can be attached to the cell membrane membrane via a dual palmitoylation sequence on cysteine s 3 and 4. This sequence targets GAP 43 to lipid raft s. It is a major protein kinase C protein kinase C PKC substrate and is considered to play a key role in neurite formation, regeneration ... LH, Gispen WH title The role of the neural growth associated protein B 50 GAP 43 in morphogenesis journal ... is abnormal in mice lacking the neuronal growth cone protein GAP 43 journal Cell volume 80 ... studying the same protein, now called GAP 43, initially used different names. It was designated F1 ... phosphorylation one day after learning. However, F1 was not cAMP kinase dependent. B 50 was regulated ... of GAP 43, it was designated as a growth associated protein because its synthesis was upregulated during ... system specific protein that is attached to the membrane via a dual palmitoylation sequence on cysteine ... , amyloid and tau protein , it may be useful to think of GAP 43 as an adaptor protein situated ... and information storage is executed through its cell biological mechanisms of phosphorylation, palmitoylation ... more details
Protein supplement may refer to Dietary supplement s Bodybuilding supplement Protein Bodybuilding supplement Protein bar See also Protein Disambig ... more details
File MMDB ID 92271 PDB ID 2LCK Mitochondrial Uncoupling Protein 2.png thumb 286px Mitochondrial Uncoupling Protein 2 An uncoupling protein is a mitochondrial inner membrane protein that can dissipate the proton gradient before it can be used to provide the energy for oxidative phosphorylation . ref name pmid16179945 Cite journal author Nedergaard J, Ricquier D, Kozak LP title Uncoupling proteins current status and therapeutic prospects journal EMBO Rep. volume 6 issue 10 pages 917 21 year 2005 pmid 16179945 doi 10.1038 sj.embor.7400532 pmc 1369193 ref There are five types known in mammals UCP1 , also known as thermogenin UCP2 UCP3 SLC25A27 , also known as UCP4 SLC25A14 , also known as UCP5 Uncoupling proteins play a role in normal physiology, as in hibernation , because the energy is used to generate heat see thermogenesis instead of producing Adenosine triphosphate ATP . However, other substances such as 2,4 Dinitrophenol and Carbonyl cyanide m chlorophenyl hydrazone CCCP also serve the same uncoupling function, and are considered poisonous. Ethanol and salicyclic acid are also uncoupling agents and will deplete the body of ATP and increase body temperature if taken in excess. citation needed date December 2010 References references External links MeshName Uncoupling Agents Mitochondrial enzymes Biochem stub Category Membrane proteins ca Prote na desacobladora ko ja pt Prote na de desacoplamento vi T c nh n t ch c p zh ... more details
forms a proteinprotein interaction with the ribonuclease protein. The contacts between the two proteins are shown as coloured patches. 250px Proteinprotein 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 proteinprotein interactions. Protein interactions have been studied from the perspectives of biochemistry ... or genetic epigenetic graph theory networks . Indeed, proteinprotein interactions are at the core ... cell are mediated to the inside of that cell by proteinprotein interactions of the signaling molecules ... and in many diseases 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 proteinprotein interactions. For example ..., proteinprotein interactions are of central importance for virtually every process in a living cell ... for new therapeutic approaches. Methods to investigate proteinprotein interactions Main Methods to investigate proteinprotein interactions As proteinprotein interactions are so important there are a multitude ... such as yeast two hybrid screening can be used to detect novel proteinprotein interactions. There are also ... methods. ref Mashaghi A et al. Investigation of a protein complex network EUROPEAN PHYSICAL JOURNAL ... of the human interactome where each point represents a protein and each blue line between them is an interaction. 200px Visualization of proteinprotein interaction networks is a popular application of scientific visualization techniques. Although protein interaction diagrams are common ... more details
SR proteins are serine arginine rich protein s which are involved in regulating and selecting Splicing genetics splice sites in eukaryote eukaryotic mRNA . Alternative splicing requires SR proteins, which select the alternative splice sites to be utilized. SR proteins also play a role in constitutive splicing that is, with mRNAs that are always spliced the same way. SR proteins may work in an antagonistic fashion, competing with each other in binding to exonic splicing enhancers . Some evidence suggests that selection of the mRNA splicing variant depends upon the relative ratios of SR proteins. These proteins generally have two domains an RS domain , rich in Arginine Serine repeats and an RNA recognition motif RRM . The RS domain is subject to serine phosphorylation , which seems to control interactions with other proteins including other SR proteins . The RRM seems to recognize specific RNA sequences, typically located within exons . Other splicing factors may also contain an RS domain these are referred to as SR related proteins . In 1990, Mark Roth scientist Mark Roth , working as a postdoctoral fellow with Joseph G. Gall Joseph Gall , discovered an antibody, mAb104, which binds to active sites of RNA polymerase II transcription. ref cite journal author Roth MB, Murphy C, Gall JG title A monoclonal antibody that recognizes a phosphorylated epitope stains lampbrush chromosome ... words, when one is missing another can make up for it. In mice, knockouts of SR protein coding ... are often localized in nuclear speckles in the Cell nucleus nucleus based on phosphorylation of the RS ... seems to be controlled by phosphorylation state. Recent studies in 2006 suggest fundamental differences ... of U1 and U2AF Splicing regulatory functions Exon independent roles splicing SR protein may have a role ... author Graveley BR title Sorting out the complexity of SR protein functions journal RNA volume 6 issue ... biology Category Biochemistry protein stub ... more details
ML, Kincaid RL title Regulated phosphorylation and dephosphorylation of tau protein effects on microtubule ... R title alpha synuclein binds to Tau and stimulates the protein kinase A catalyzed tau phosphorylation ... is an effector of tau proteinphosphorylation journal J. Biol. Chem. volume 275 issue 33 pages 25247 ... tau phosphorylation by the Ca2 calmodulin dependent protein kinase II journal J. Biol. Chem. volume ...PBB geneid 4137 Tau proteins are proteins that microtubule associated protein stabilize microtubules ... is designated MAPT microtubule associated protein tau . ref name pmid3131773 cite journal ... encoding a core protein of the paired helical filament of Alzheimer disease identification as the microtubule associated protein tau journal Proc. Natl. Acad. Sci. U.S.A. volume 85 issue 11 pages ... isoforms of human microtubule associated protein tau sequences and localization in neurofibrillary ..., Lockwood AH, Hwo SY, Kirschner MW title A protein factor essential for microtubule assembly journal ... 432646 doi 10.1073 pnas.72.5.1858 ref Function Tau protein is a highly soluble microtubule associated protein MAP . In humans, these proteins are mostly found in neurons compared to non neuronal cells ... of mice lacking tau protein journal Nature volume 369 issue 6480 pages 488 91 year 1994 month June ... tubulin assembly into microtubules. Tau has two ways of controlling microtubule stability protein isoform isoforms and phosphorylation . Six tau isoforms exist in human brain tissue, and they are distinguished by their number of binding protein domain domains . Three isoforms have three binding ... end carboxy terminus of the protein and are positively charged allowing it to bind to the negatively ... Thr phosphorylation sites on the longest tau isoform. Phosphorylation has been reported on approximately ... Pt 3 issue pages 577 91 year 1997 month May pmid 9169588 pmc 1218358 doi ref Phosphorylation of tau is regulated by a host of kinase s, including PKN, a Protein kinase Serine.2Fthreonine specific protein ... more details
PBB geneid 23264 RoXaN Rotavirus X associated non structural protein also known as ZC3H7B zinc finger CCCH type containing 7B , is a protein that in humans is encoded by the ZC3H7B gene . ref name entrez cite web title Entrez Gene ZC3H7B zinc finger CCCH type containing 7B url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 23264 accessdate ref RoXaN is a protein that contains tetratricopeptide tetratricopeptide repeat and leucine aspartate repeat as well as zinc finger domains. This protein also interacts with the rotavirus non structural protein NSP3 rotavirus NSP3 . ref name entrez Function Rotavirus mRNA s are 5 cap capped but not Polyadenylation polyadenylated , and viral proteins are Rotavirus Translation translated by the cellular translation machinery. This is accomplished through the action of the viral Nonstructural Protein nonstructural protein NSP3 rotavirus NSP3 which specifically binds the 3 consensus sequence of viral mRNAs and Rotavirus Translation ... I. ref name pmid15047801 RoXaN rotavirus X protein associated with NSP3 rotavirus NSP3 is 110 kDa cellular protein that contains a minimum of three regions predicted to be involved in proteinprotein or nucleic acid protein interactions. A tetratricopeptide repeat region, a proteinprotein interaction ... aspartate repeat LD motif which is involved in proteinprotein interactions. ref name pmid15047801 ..., Poncet D title RoXaN, a novel cellular protein containing TPR, LD, and zinc finger motifs, forms a ternary ... and analysis of 500 novel complete protein coding human cDNAs journal Genome Research volume ... of tyrosine phosphorylation in cancer cells journal Nature Biotechnology volume 23 issue 1 pages 94 ... journal author Lim J title A proteinprotein interaction network for human inherited ataxias and disorders ... Controls template provides controls for Protein Box Bot, please see Template PBB Controls for details. PBB Controls update page yes require manual inspection no update protein box yes update summary ... more details
A binding protein is any protein that acts as an agent to Molecular binding bind two or more molecules together. Examples include DNA binding protein Single strand binding protein Telomere binding protein RNA binding protein Poly A binding protein Nuclear cap binding protein complex CREB binding protein Calcium binding protein Calcium binding protein 1 S100 calcium binding protein A1 TATA binding protein Actin binding protein Penicillin binding proteins Retinol binding protein Retinol binding protein 4 EP300 Binding immunoglobulin protein Odorant binding protein Lipopolysaccharide binding protein C4b binding protein Rap GTP binding protein Calmodulin binding proteins Iron binding proteins Thyroxine binding proteins Folate binding protein Sterol regulatory element binding protein GTP binding protein Retinaldehyde binding protein 1 Ccaat enhancer binding proteins Androgen binding protein Maltose binding protein Phosphatidylethanolamine binding protein 1 Syntaxin binding protein 3 Insulin like growth factor binding protein Methyl CpG binding domain protein 2 Growth hormone binding protein Vitamin D binding protein Syntaxin binding protein 2 Oxysterol binding protein E3 binding protein Iron responsive element binding protein Polypyrimidine tract binding protein Fatty acid binding protein Myosin binding protein C, cardiac CPE binding protein Category Proteins biochem stub ... more details
PBB geneid 2038 Erythrocyte membrane protein band 4.2 is a protein that in humans is encoded by the EPB42 ... CM, Lux SE title The murine pallid mutation is a platelet storage pool disease associated with the protein ... membrane protein band 4.2 url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 2038 accessdate ref Protein 4.2 is a cytoskeleton protein found in red blood cells . The PBB Summary template is automatically maintained by Protein Box Bot. See Template PBB Controls to Stop updates. PBB Summary section title summary text Erythrocyte membrane protein band 4.2 is an ATP binding protein which may regulate the association of protein 3 with ankyrin. It probably has a role in erythrocyte ... doi 10.1034 j.1600 0749.2002.1r082.x cite journal author Sung LA title Human erythrocyte protein ... protein 4.2, a high copy number membrane protein, is N myristylated journal J. Biol. Chem. volume ... to threonine substitution in protein 4.2 cDNA is associated with a Japanese form of hereditary hemolytic anemia protein 4.2NIPPON journal Blood volume 79 issue 7 pages 1846 54 year 1992 pmid 1558976 ... author Sung LA title Molecular cloning of human protein 4.2 a major component of the erythrocyte membrane ... erythrocyte protein 4.2 maps to chromosome 15q15 journal Am. J. Hum. Genet. volume 50 issue 1 pages ... CM title Organization of the gene for human erythrocyte membrane protein 4.2 structural similarities ... Korsgren C title Complete amino acid sequence and homologies of human erythrocyte membrane protein ... of erythrocyte membrane protein 4.2 journal Biochem. J. volume 309 Pt 2 issue pages 677 81 year 1995 pmid 7626035 doi pmc 1135783 cite journal author Hayette S title A point mutation in the protein ... first9 C. M. cite journal author Hayette S title A deletional frameshift mutation in protein 4.2 ... in the erythrocyte protein 4.2 gene of Japanese patients with hereditary spherocytosis protein ... cite journal author Das AK title Human erythrocyte membrane protein 4.2 is palmitoylated journal Eur ... more details
Proteinprotein interaction prediction is a field combining bioinformatics and structural biology in an attempt ... proteinprotein interaction s is important for the investigation of intracellular signaling pathways, modelling of protein complex structures and for gaining insights into various biochemical ... of experimental techniques, including yeast two hybrid screening two hybrid systems, protein fragment complementation assays PCA , affinity purification mass spectrometry , protein microarray s, fluorescence ... in other organisms. In addition, a number of bound protein complexes have been structurally solved ... pairs of protein families with similar patterns of presence or absence across large numbers of species ... imply physical interaction. Prediction of co evolved protein pairs based on similar phylogenetic ... protein in the hypothesized interacting pair. If the matrices are sufficiently similar as measured ... ref Ogmen builds a library of known proteinprotein interfaces from the Protein Data Bank PDB , where ... a known structure i.e. present in the Protein Data Bank PDB . Bayesian network modelling Bayesian ... potential protein interaction is a true positive result. These methods are useful because ... circumstantial evidence that a particular pair of proteins 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 ... to search for protein complex structures that are homologous to the query sequences. These known ... sequences. This method has the advantage of not only inferring protein interactions but also suggests ... is limited to a relatively small number of known protein complex structures. Supervised learning problem ... the known protein interactions supervise the estimation of a function that can predict whether an interaction .... . Relationship to docking methods The field of proteinprotein interaction prediction is closely related ... more details
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