| arginine vasopressin | [8-arginine]vasopressin; [Arg8]vasopressin;vasopressin containing an arginyl residue in position 8 (as in chickens and most mammals, including man); porcine vasopressin has a lysyl residue at position 8. All are vasopressors. Synonym: argipressin. (05 Mar 2000) |
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| arginine vasotocin | Vasotocin with arginyl residue at position 8 (identical with arginine oxytocin). See: arginine vasopressin. (05 Mar 2000) |
| beta-alanyl-arginine hydrolase | <enzyme> Also hydrolyzes carnosine, at a lower rate; requires mn2+; inhibited by bestatin; stabilised by sulfhydryl reagents Registry number: EC 3.4.13.- Synonym: ala-arg hydrolase (26 Jun 1999) |
| calcium-calmodulin-activated histone 3 arginine kinase | <enzyme> From nuclear extracts of dividing and quiescent rat heart endothelial cells; represents a new class of ca-cam-dependent kinases which phosphorylate arg Registry number: EC 2.7.10.- Synonym: ca(2+)-calmodulin-activated histone 3 arg kinase, ca-cam h3 kinase (26 Jun 1999) |
| complement 5a, des-arginine | Complement 5a with the carboxy-terminal arginine removed. The arginine is rapidly cleaved from the c5a fragment during complement activation by carboxypeptidase b present in normal human serum. C5a des-arg shows complete loss of spasmogenic activity though it retains some chemotactic ability. (12 Dec 1998) |
| protein-arginine n-methyltransferase | <enzyme> An enzyme that catalyses the methylation of arginine residues of proteins to yield n-mono- and n,n-dimethylarginine. This enzyme is found in many organs, primarily brain and spleen. Chemical name: S-Adenosyl-L-methionine:protein-L-arginine N-methyltransferase Registry number: EC 2.1.1.23 (12 Dec 1998) |
| NAD(p)-arginine ADP-ribosyltransferase | <enzyme> An enzyme that catalyses the transfer of the ADP-ribose moiety from NAD to specific protein substrates with agmatine, arginine-type compounds, or guanidine as acceptors. This reaction can be catalyzed by prokaryotic and eukaryotic enzyme systems. Mono-ADP-ribosylation is a mechanism of action common to several bacterial toxins. It effects profound changes in cellular metabolism, such as activation of adenylate cyclase, regulation of protein synthesis at the level of elongation factor 2, and ion transport across biological membranes. Chemical name: NAD(+)-L-arginine ADP-D-ribosyltransferase Registry number: EC 2.4.2.31 (12 Dec 1998) |
| N-arginine dibasic convertase | <enzyme> Catalyses cleavage at the n-terminus of arginine residues in dibasic stretches of proteins; located in brain cortex; genbank l27124 Registry number: EC 3.4.24.- Synonym: nrd convertase, n-arg dibasic convertase (26 Jun 1999) |
| receptors, glutamate | Cell-surface proteins that bind glutamate and trigger changes which influence the behaviour of cells. Glutamate receptors include ionotropic receptors (ampa, kainate, and n-methyl-d-aspartate receptors), which directly control ion channels, and metabotropic receptors which act through second messenger systems. Glutamate receptors are the most common mediators of fast excitatory synaptic transmission in the central nervous system. They have also been implicated in the mechanisms of memory and of many diseases. (12 Dec 1998) |
| receptors, metabotropic glutamate | Cell surface proteins that bind glutamate and act through g-proteins to influence second messenger systems. Several types of metabotropic glutamate receptors have been cloned. They differ in pharmacology, distribution, and mechanisms of action. (12 Dec 1998) |
| glutamate | <biochemistry, physiology> Major fast excitatory neurotransmitter in the mammalian central nervous system. See: glutamate receptor. Also the excitatory neuromuscular transmitter in arthropod skeletal muscles. (18 Nov 1997) |
| glutamate-1-saemialdehyde 2,1-aminomutase | <enzyme> Catalyses the conversion of glutamate 1-saemialdehyde to 5-aminolevulinate via 4,5-diaminovalerate in pyridoxane-dependent reactions; genbank x82072 (heml protein from pseudomonas aeruginosa) Registry number: EC 5.4.3.8 Synonym: glu-s-aminotransferase, glutamate-1-saemialdehyde aminotransferase, heml protein, heml gene product (26 Jun 1999) |
| glutamate acetyltransferase | <enzyme> An enzyme catalyzing transfer of an acetyl group from N2-acetylornithine to l-glutamate forming l-ornithine and N-acetyl-l-glutamate, an activator of the urea cycle. Synonym: ornithine acetyltransferase. (05 Mar 2000) |
| glutamate aminotransferase | <enzyme> Aromatic keto acid acts as amine acceptor Registry number: EC 2.6.1.- (26 Jun 1999) |
| glutamate-ammonia ligase | <enzyme> An enzyme that catalyses the conversion of ATP, l-glutamate, and nh3 to ADP, orthophosphate, and l-glutamine. It also acts more slowly on 4-methylene-l-glutamate. Chemical name: L-Glutamate:ammonia ligase (ADP-forming) Registry number: EC 6.3.1.2 (12 Dec 1998) |