| 3-methyl-2-oxobutanoate hydroxymethyltransferase | <enzyme> Methylenetetrahydrofolate and alpha-ketoisovalerate gives tetrahydrofolate and ketopantoate Chemical name: 5,10-methylenetetrahydrofolate alpha-ketoisovalerate hydroxymethyltransferase Registry number: EC 2.1.2.11 Synonym: iphm transferase, panb protein, ketopantoate hydroxymethyltransferase (26 Jun 1999) |
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| 3-O-methyl-fluorescein phosphatase | <enzyme> Used for assay of na-k-atpase in intact tissues Registry number: EC 3.6.1.- Synonym: 3-o-methylfluorescein phosphatase (26 Jun 1999) |
| (4-fluorophenyl)-alpha-methyl-5-benzoxazole methylamine | Amine derivative of flunoxaprofen. Pharmacological action: fluorescent dye Synonym: s-flopa (26 Jun 1999) |
| 4-methyl-3-hydroxyanthranilic acid adenylyltransferase | <enzyme> From streptomyces chrysomallus; catalyses the formation of 4-mha in the presence of ATP Registry number: EC 2.7.7.- Synonym: 4-mha activating enzyme (26 Jun 1999) |
| 4-methyl-5-nitrocatechol oxygenase | <enzyme> Catalyses conversion of 4-methyl-5-nitrocatechol to 2-hydroxy-5-methylquinone; dntb isolated from burkholderia; genbank u68411 Registry number: EC 1.13.12.- Synonym: mnc oxygenase, dntb gene product (26 Jun 1999) |
| 4-methylmuconolactone methyl-isomerase | <enzyme> From nocardioform actinomycetes; forms 3-methylmuconolactone Registry number: EC 5.3.3.- Synonym: 4-methyl-2-enelactone methylisomerase, mmlm-isomerase (26 Jun 1999) |
| 4-methyl sterol demethylase | <chemical> This term is used to describe 10 reactions in the collective processes of monooxygenation, decarboxylation and reduction, which, together account for the conversion of each of the two 4-methyl groups of lanosterol to carbon dioxide Chemical name: demethylase, methyl sterol Synonym: 4,4-dimethylzymosterol monooxygenase, sterol 4-demethylase (26 Jun 1999) |
| 4-toluene sulfonate methyl monooxygenase | <enzyme> From comamonas testosteroni t-2; catalyses the transformation of toluene sulfonate or p-toluate to the corresponding alcohol and the methyl side-chain to the corresponding acid in the presence of o2 and NADH; p- and m- toluates and 4-ethylbenzoate are substrates, whereas p-xylene, toluene and p-cresol are not substrates; enzyme also catalyses the demethylation of 4-methoxybenzoate to 4-hydroxybenzoate and formaldehyde; comprises reductase b and oxygenase m Registry number: EC 1.14.13.- Synonym: tsmoxygenase, tsmos, p-ts methyl-monooxygenase, tsam protein, tsab protein (26 Jun 1999) |
| ABO blood group | <haematology> The major human blood type system which describes the oligosaccharide glycoprotein antigens found on the surface of human blood cells. According to the type of antigen present, a person may be assigned a blood type of A, B, AB or O. A second type of antigen, the Rh factor, renders a positive or negative blood type. The ABO blood group system is important because it determines who can donate blood to or accept blood from whom. Type A or AB blood will cause an immune reaction in people with type B blood and type B and AB blood will cause a reaction in people with type A blood. Conversely, type O blood has no A or B antigens, so people with type O blood are universal donors. And since AB blood already produces both antigens, people who are type AB can accept any of the other blood types without suffering an immune reaction. (04 Jul 1999) |
| actinobacteria group | A group of gram-positive, heterogeneous bacteria. This group encompasses a range of morphologically, physiologically, and chemically different organisms and includes bacteria that form cocci, short rods, irregular rods, and mycelia that fragment. (12 Dec 1998) |
| alkyl group | <chemistry> A funtional group on an organic molecule which is derived from an alkane which has lost a hydrogen atom. (13 Nov 1997) |
| aluminum group | Aluminum, boron, gallium, indium, and thallium. (05 Mar 2000) |
| amino group | <biochemistry> An -NH2 group. Organic compounds which have this group are called amines. (09 Oct 1997) |
| anterior group of axillary lymph nodes | Lymph nodes located along the lateral thoracic vein; they receive the drainage of the pectoral region, including most of the drainage of the breast. Synonym: nodi lymphatici axillaris pectorales, anterior group of axillary lymph nodes. (05 Mar 2000) |
| apical group of axillary lymph nodes | The group of lymph node's located at the apex of the axillary fossa that receive lymphatic drainage from other groups of axillary node's and then drain in turn into the subclavian lymphatic trunk. Synonym: nodi lymphatici axillares apicales. (05 Mar 2000) |