| BBBD | blood brain barrier disruption |
|---|---|
| BCB | blood-cerebrospinal fluid barrier; brilliant cresyl blue |
| BIU | barrier isolation unit |
| BR | barrier reared [experimental animals]; baseline recovery; bathroom; bed rest; bedside rounds; biliru... |
| COBS | cesarean-obtained barrier-sustained; chronic organic brain syndrome |
| adenine deaminase | <enzyme> An enzyme that catalyses the hydrolysis of adenine to ammonia and hypoxanthine. A part of purine degradation. (05 Mar 2000) |
|---|---|
| adenine deoxyribonucleotide | Deoxyadenosine monophosphate, a hydrolysis product of DNA, differing from adenylic acid in containing deoxyribose in place of ribose. Synonym: adenine deoxyribonucleotide. (05 Mar 2000) |
| adenine phosphoribosyltransferase | <enzyme> An enzyme catalyzing the formation of AMP from adenine and phosphoribosylpyrophosphate. It can act as a salvage enzyme for recycling of adenine into nucleic acids. Chemical name: AMP:pyrophosphate phospho-D-ribosyltransferase Registry number: EC 2.4.2.7 (12 Dec 1998) |
| adenine sulfate | Adenine conjugated with sulfuric acid; used to stimulate leukocyte production in agranulocytosis. (05 Mar 2000) |
| mRNA(adenine-N6)-methyltransferase | <enzyme> Methylates mRNA at internal adenosine within the consensus sequence puac(a/c/u) Registry number: EC 2.1.1.- Synonym: mRNA-a-n6-methyltransferase, mRNA(adenine-n6)-methylase (26 Jun 1999) |
| site-specific DNA-methyltransferase (adenine-specific) | <enzyme> An enzyme responsible for producing a species-characteristic methylation pattern on adenine residues in a specific short base sequence in the host cell DNA. The enzyme catalyses the methylation of DNA adenine in the presence of s-adenosyl-l-methionine to form DNA containing 6-methylaminopurine and s-adenosyl-l-homocysteine. Registry number: EC 2.1.1.72 (12 Dec 1998) |
| nicotinamide adenine dinucleotide | <enzyme> Coenzymes that act as electron and hydrogen carriers in some oxidation-reduction reactions. (09 Oct 1997) |
| nicotinamide adenine dinucleotide phosphate | See: NADP. (18 Nov 1997) |
| thiazole-4-carboxamide-adenine dinucleotide phosphodiesterase | <enzyme> Hydrolyzes thiazole-4-carboxamide adenine dinucleotide, releasing AMP Registry number: EC 3.1.4.- Synonym: tad-phosphodiesterase (26 Jun 1999) |
| flavin adenine dinucleotide | <biochemistry> Flavin derivatives that act as prosthetic groups (covalently linked cofactors) for flavin enzymes. (18 Nov 1997) |
| cyclic nucleotide | A nucleoside monophosphate in which the phosphoryl group is linked twice to the sugar moiety; e.g., adenosine 3',5'-cyclic monophosphate (cAMP). (05 Mar 2000) |
| cyclic nucleotide-regulated protein kinases | <enzyme> A group of enzymes that catalyses the phosphorylation of serine or threonine residues of proteins and is dependent on cyclic nucleotides. Registry number: EC 2.7.10.- (12 Dec 1998) |
| xanthine nucleotide | The monophosphoric ester of xanthosine. An intermediate in GMP biosynthesis. Synonym: xanthidylic acid, xanthine nucleotide, xanthylic acid. (05 Mar 2000) |
| pyrimidine-5'-nucleotide nucleosidase | <enzyme> Also acts on some deoxyribonucleotides Registry number: EC 3.2.2.10 Synonym: pyr-5'-nt-nucleosidase (26 Jun 1999) |
| nicotinamide-nucleotide adenylyltransferase | <enzyme> An enzyme that catalyses reversibly the transfer of the adenylyl moiety of ATP to the phosphoryl group of nmn to form NAD+ and pyrophosphate. The enzyme is found predominantly in the nuclei and catalyses the final reaction in the major pathway for the biosynthesis of NAD in mammals. Chemical name: ATP:nicotinamide-nucleotide adenylyltransferase Registry number: EC 2.7.7.1 (12 Dec 1998) |