| AHH | alpha-hydrazine analog of histidine; anosmia and hypogonadotropic hypogonadism [syndrome]; arylhydro... |
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| AHSG | alpha-2HS-glycoprotein |
| 'Greek letter alpha' | angular acceleration; first [carbon atom next to the carbon atom bearing the active group in organic... |
| alpha2-AP | alpha 2-antiplasmin |
| AMD | acid maltase deficiency; acromandibular dysplasia; actinomycin D; adrenomyelodystrophy; age-related ... |
| 5-phospho-alpha-d-ribosyl 1-pyrophosphate | 5-Phosphoribosyl 1-diphosphate;d-Ribose carrying a phosphate group on ribose carbon-5 and a pyrophosphate group on ribose carbon-1; an intermediate in the formation of the pyrimidine and purine nucleotides as well as NAD+. Synonym: 5-phosphoribose 1-diphosphate. Acronym: PRPP (05 Mar 2000) |
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| 6-hydroxymethylbenzo(alpha)pyrene synthetase | <enzyme> Catalyses hydroxymethylation of benzo(alpha)pyrene to the 16-hydroxymethyl derivative Registry number: EC 2.1.2.- (26 Jun 1999) |
| 6-ketoprostaglandin f1 alpha | <chemical> The physiologically active and stable hydrolysis product of epoprostenol. Found in nearly all mammalian tissue. Chemical name: Prost-13-en-1-oic acid, 9,11,15-trihydroxy-6-oxo-, (9alpha,11alpha,13E,15S)- (12 Dec 1998) |
| 6-phospho-alpha-glucosidase | <enzyme> Hydrolyzes maltose-6'-phosphate to glucose-6-phosphate Registry number: EC 3.2.1.- Synonym: 6-phosphoryl-o-alpha-d-glucopyranosyl - 6-phosphoglucohydrolase, maltose-6'-phosphate glucosidase, maltose 6-phosphate hydrolase, malh gene product (26 Jun 1999) |
| folylpoly-alpha-glutamate synthetase | <enzyme> Synthesises alpha-carboxyl-linked folylpolyglutamates Registry number: EC 6.3.2.- Synonym: fpa glutamate synthase (26 Jun 1999) |
| 7-alpha-cephem-methoxylase | <chemical> Rn refers to cmci; 2-protein component which converts cephalosporin c to 7-methoxycephalosporin c; encoded by 2 closely-linked genes which are required for hydroxylation at c-7 and transfer of me to the 7-hydroxycephem intermediate; genbank z21685 and z21686 Synonym: 7-cephem hydroxylase, 7-hydroxycephem methyltransferase (26 Jun 1999) |
| lanosterol 14 alpha-demethylase | <enzyme> Requires cytochrome p-450, several steps, oxidative Registry number: EC 1.- Synonym: lanosterol 14 alpha-methylsterol oxidase, sterol c 14 demethylase, sterol 14 alpha-demethylase, cytochrome p-450 (14dm), cytochrome p450 14-alpha demethylase, p450 ca, p-450dm, lan14dm, cyp51a1 gene product, eburicol 14 alpha-demethylase, cyp51 gene product, p450(14dm), obtusifoliol 14-alpha-demethylase, eburicol 14-alpha-demethylase (26 Jun 1999) |
| fucosyl galactose alpha-n-acetylgalactosaminyltransferase | <enzyme> An enzyme that catalyses the transfer of acetylgalactosamine from udp n-acetylgalactosamine to various 2-fucosylgalactosides as acceptors. Chemical name: UDP-N-acetyl-D-galactosamine:alpha-L-fucosyl-(1,2)-D-galactose 3-N-acetyl-D-galactosaminyltransferase Registry number: EC 2.4.1.40 (12 Dec 1998) |
| lignostilbene-alpha,beta-dioxygenase | <enzyme> Responsible for the cleavage of interphenyl calpha-cbeta double bonds of lignostilbene Registry number: EC 1.13.11.- Synonym: lig-dioxygenase (26 Jun 1999) |
| lipooligosaccharide alpha-1,2-acetylglucosaminyltransferase | <enzyme> Responsible for adding n-acetylglucosamine to the heptosyl residue of the inner core of neisseria menigitidis lipooligosaccharide; genbank u35713 Registry number: EC 2.4.1.- Synonym: rfak gene product, los 1,2-glcnac-transferase (26 Jun 1999) |
| acetoacetyl-acyl carrier protein synthase | <enzyme> E coli enzyme, that catalyses condensation of malonyl-acyl carrier protein plus acetyl-acyl carrier protein; not inhibited by cerulenin Registry number: EC 2.3.1.- Synonym: acetoacetyl-acp synthase (26 Jun 1999) |
| acid soluble spore protein | <molecular biology> A DNA binding protein in the spores of some bacteria, thought to stabilise the DNA in an A configuration, so protecting it from cleavage by enzymes or UV light. (18 Nov 1997) |
| acute-phase protein | <haematology> These plasma proteins (in addition to fibrinogen) increase 25% or more in response to inflammation and injury are under direct control of interleukin-6 (IL-6) (hepatocyte-stimulating factor). Other proteins which increase are ceruloplasmin, C3 and C4 which increase 50% or more; alpha-1 acid glycoprotein, alpha-1 antitrypsin, haptoglobin and fibrinogen (the major determinant of viscosity 1 ) which increase two- to fourfold; C-reactive protein (CRP) and serum amyloid A which increase several hundred-fold. Despite long-held clinical opinion to the contrary, available data indicate that neither ESR nor measurement of specific acute-phase reactants are useful in excluding underlying infection or inflammation regardless of the pretest probability. These proteins are secreted into the blood in increased or decreased quantities by hepatocytes in response to trauma, inflammation, or disease. They can serve as inhibitors or mediators of the inflammatory processes. Certain acute-phase proteins have been used to diagnose and follow the course of diseases or as tumour markers. See also: amyloid, c-reactive protein, erythrocyte sedimentation rate, viscosity. (25 Jun 1999) |
| acyl-(acyl-carrier-protein)-phospholipid acyltransferase | <enzyme> Catalyses the formation of phosphatidylethanolamine from acyl-acyl carrier protein and 2-acyl-sn-glycero-3-phosphoethanolamine Registry number: EC 2.3.1.40 Synonym: 2-acyl-gpe acyltransferase, 2-acylglycerophosphoethanolamine acyltransferase (26 Jun 1999) |
| acyl-(acyl-carrier-protein)-UDP-N-acetylglucosamine acyltransferase | <enzyme> E coli enzyme involved in lipid a biosynthesis; uses beta-hydroxymyristoyl-acyl carrier protein to form udp-3-monoacyl-n-acetylglucosamine; amino acid sequence given in second source Registry number: EC 2.3.1.129 Synonym: udp-aguatransferase, lpxa protein, udp-n-acetylglucosamine-3-acyltransferase, udp-n-acetylglucosamine 3-o-acyltransferase, udp-3-o-(r-3-hydroxymyristoyl)glucosamine-n-acyltransferase, lpxd protein, fira gene product, fira protein (26 Jun 1999) |