| protein-losing enteropathies | A series of gastrointestinal disorders which share in common the excessive loss of protein, mainly albumin, across the gut wall. They occur in the stomach (menetrier disease), as well as the small bowel (intestinal lymphangiectases, assorted inflammatory states). They are also occasionally associated with congestive heart failure (again a small bowel protein loss). (12 Dec 1998) |
|---|---|
| protein-losing enteropathy | Condition in which plasma protein is lost to excess into the intestine. This can be due to diverse causes including gluten enteropathy, extensive ulceration of the intestine, intestinal lymphatic blockage, and infiltration of leukaemic cells into the intestinal wall. (12 Dec 1998) |
| protein-lysine 6-oxidase | <enzyme> An enzyme oxidizing peptidyl-lysyl-peptide in the presence of water & molecular oxygen to yield peptidyl-allysyl-peptide plus ammonia & hydrogen peroxide. Chemical name: Protein-L-lysine:oxygen 6-oxidoreductase (deaminating) Registry number: EC 1.4.3.13 (12 Dec 1998) |
| protein-N-pi-phosphohistidine - sugar phosphotransferase | <enzyme> Enzyme II of the system; leve is the the IIb subunit from bacillus subtilis Registry number: EC 2.7.1.69 Synonym: phph-phosphotransferase, phosphohistidinoprotein-hexose phosphotransferase, leve gene product, IIb(lev) (26 Jun 1999) |
| protein-proline kinase | <enzyme> Phosphorylates synapsin i; phosphorylation takes place on serine 20, which is flanked by two proline molecules; heterodimer of p34(cdc2)/p58(cyclin a) Registry number: EC 2.7.10.- Synonym: proline-directed protein kinase (26 Jun 1999) |
| protein-S-isoprenylcysteine O-methyltransferase | <enzyme> Methylates carboxyl-terminal cysteine of yeast sex factors and ha-ras oncogene protein; c-terminal s-geranylgeranylcysteine and s-geranylcysteine residues are also methylated more slowly Registry number: EC 2.1.1.100 Synonym: pcc methyltransferase, farnesyl cysteine c-terminal methyltransferase, protein-cysteine-carboxyl methyltransferase, 5-prenylcysteine methyltransferase, isoprenylated protein methyltransferase, ste14 gene product, prenylated protein carboxyl methyltransferase, ppmtase, protein c-terminal prenylcysteine methyltransferase (26 Jun 1999) |
| protein-serine-threonine kinases | <enzyme> A group of enzymes that catalyses the phosphorylation of serine or threonine residues in proteins, with ATP or other nucleotides as phosphate donors. Registry number: EC 2.7.10 (12 Dec 1998) |
| protein-serine-threonine phosphatase | <enzyme> Consider also EC 3.1.3.16 phosphoprotein phosphatases Registry number: EC 3.1.3.- Synonym: serine phosphatase, threonine phosphatase, protein-serine phosphatase, serine-threonine phosphatase (26 Jun 1999) |
| protein-tyrosine kinase | <enzyme> An enzyme that catalyses the phosphorylation of tyrosine residues in proteins with ATP or other nucleotides as phosphate donors.12. Chemical name: ATP:protein-tyrosine O-phosphotransferase Registry number: EC 2.7.1.112 (12 Dec 1998) |
| protein-tyrosine-phosphatase | <enzyme> An enzyme group that specifically dephosphorylates phosphotyrosyl residues in selected proteins. Together with protein-tyrosine kinase, it regulates tyrosine phosphorylation and dephosphorylation in cellular signal transduction and may play a role in cell growth control and carcinogenesis. Chemical name: Protein-tyrosine-phosphate phosphohydrolase Registry number: EC 3.1.3.48 (12 Dec 1998) |
| proteinaceous | <physiology> Of or related to protein; albuminous; proteid. Source: Websters Dictionary (01 Mar 1998) |
| proteinaceous infectious particle | A proposed pathogen composedonly of protein with no detectable nucleic acid and which is responsible for Creutzfeldt-Jakob disease and kuru inhumans and scrapie in sheep. (09 Oct 1997) |
| proteinase | <enzyme> An enzyme that cleaves protein at positions within the chain. Formally, the enzymes are peptidyl peptide hydrolases, more usually known as proteinases or proteolytic enzymes. (18 Nov 1997) |
| proteinase inhibitor inducing factor | See: PIIF. (18 Nov 1997) |
| proteinogenic | Capable of producing proteins. Synonym: proteinogenic. (05 Mar 2000) |