| cephalosporin 7-alpha-hydroxylase | <enzyme> A dioxygenase from streptomyces clavuligerus; requires 2-oxoglutarate, fe2+ and a reducing agent such as ascorbic acid Registry number: EC 1.14.11.- (26 Jun 1999) |
|---|---|
| glycopeptide alpha-N-acetylgalactosaminidase | <enzyme> Hydrolyzes terminal d-galactosyl-n-acetyl-alpha-d-galactosaminide residues from glycopeptides and glycoproteins linked by serine or threonine residues Registry number: EC 3.2.1.97 Synonym: o-glycanase (26 Jun 1999) |
| glycoprotein endo-alpha-1,3-mannosidase | <enzyme> An endomannosidase; cleaves glucosyl alpha1-3-mannose from monoglucosylated oligosaccharide (glcman(7-9)glcnac) of the glycoprotein produced in the golgi membrane Registry number: EC 3.2.1.130 Synonym: glucosyl mannosidase (26 Jun 1999) |
| glycoprotein hormones, alpha subunit | A non-covalently bound subunit of the glycoprotein hormones tsh, fsh, lh, and hcg which originates in the anterior pituitary gland and placenta. This subunit is virtually identical in structure and indistinguishable by radioimmunoassay in all of the above glycoproteins. It is present in both men and women, but is elevated in postmenopausal women and in patients with hypothyroidism, uraemia and malignant tumours. The alpha subunit may be involved directly in recognition of certain receptors. (12 Dec 1998) |
| glycosylated alpha-amylase | <enzyme> Contains a single biantennary n-linked oligosaccharide that terminates with the structure fucalpha1,3(galbeta1,4)glcnac Registry number: EC 3.2.1.- Synonym: human glycosylated alpha-amylase (26 Jun 1999) |
| peptide N-alpha acetyltransferase | <enzyme> Pituitary enzyme; acetylates peptide hormones including acth; also found in saccharomyces cerevisiae Registry number: EC 2.3.1.88 Synonym: peptide acetyltransferase, acth acetyltransferase, beta-endorphin acetyltransferase, alpha-msh acetyltransferase (26 Jun 1999) |
| Goodenough draw-alpha-man test | A brief test for assessing an individual's level of intelligence based on how accurately drawn and how many elements are included when a child or adult is given a pencil and sheet of white paper and asked to draw a man, the best man he or she is able to draw. Also called the Goodenough draw-alpha-person test and, in its current form, the Goodenough-Harris drawing test. (05 Mar 2000) |
| cholesterol 7 alpha-monooxygenase | <enzyme> An enzyme that catalyses the hydroxylation of cholesterol to cholest-5-en-3 beta,7 alpha-diol. Chemical name: Cholesterol,NADPH:oxygen oxidoreductase (7 alpha-hydroxylating) Registry number: EC 1.14.13.17 (12 Dec 1998) |
| RNase alpha | <enzyme> An enzyme catalyzing endonucleolytic cleavage of O-methylated RNA yielding 5'-phosphomonoesters. (05 Mar 2000) |
| phycocyanin alpha-subunit phycocyanobilin lyase | <enzyme> Cleaves thioether bond attaching phycocyanobilin to the alpha subunit of phycocyanin; product of the cpce and cpcf genes of synechococcus Registry number: EC 4.4.- Synonym: phycocyanobilin lyase (26 Jun 1999) |
| phycoerythrocyanin alpha-subunit phycobiliviolin lyase | <enzyme> Shows high degree of homology to phycocyanobilin lyase Registry number: EC 4.4.- Synonym: phycobiliviolin lyase, pece protein, pecf protein, pec alpha-subunit phycobiliviolin lyase (26 Jun 1999) |
| phytanic acid alpha-oxidase | <enzyme> May be the genetic defect in refsum's disease Registry number: EC 1.14.99.- Synonym: phytanic acid alpha-hydroxylase (26 Jun 1999) |
| p-nitrophenyl-alpha-L-rhamnopyranohydrolase | <enzyme> Active toward naringin, hesperidin and p-nitrophenylrhamnosides; specific for alpha-1,2- or alpha-1,6- linkages to beta-d-glucose Registry number: EC 3.2.1.- Synonym: pnp-rhamnohydrolase (26 Jun 1999) |
| polymerase alpha | A class of mammalian DNA polymerases in the nucleus that function in chromosome replication. Synonym: polymerase a. (05 Mar 2000) |
| pregnancy-associated alpha-plasma protein | An alpha 2-macroglobulin, molecular weight approximately 750,000 now believed to be a pregnancy-specific protein. Its plasma levels increase steadily during the second trimester and continue to rise until the end of gestation. (12 Dec 1998) |