| isonicotinic acid | 4-Pyridinecarboxylic acid;its hydrazide is isoniazid. (05 Mar 2000) |
|---|---|
| isonicotinic acid hydroxylase | <enzyme> Forms 2-hydroxy-isonicotinic acid; contains iron and a flavin; incorporates hydroxyl group of water; enzyme from mycobacterium, called isonicotinate dehydrogenase, contains molybdopterin and fad Registry number: EC 1.- Synonym: isonicotinate dehydrogenase (26 Jun 1999) |
| isonicotinic acids | Heterocyclic acids that are derivatives of 4-pyridinecarboxylic acid (isonicotinic acid). (12 Dec 1998) |
| isonitrile | An organic isocyanide. (05 Mar 2000) |
| isonitroso- | <chemistry, prefix> A combining from (also used adjectively), signifying: Pertaining to, or designating, the characteristic, nitrogenous radical, NOH, called the isonitroso group. (29 Oct 1998) |
| isonitrosoacetone | CH3CO-CH==NOH; propanone 1-oxine;a cholinesterase reactivator that can penetrate the blood-brain barrier readily and cause significant reactivation of phosphorylated acetylcholinesterase in the central nervous system; used to protect human beings and animals against otherwise lethal poisoning with organophosphorous anticholinesterase agents. Synonym: monoisonitrosoacetone, pyruvaldoxine. (05 Mar 2000) |
| isonormocytosis | An obsolete term for a condition in which the actual number and the relative proportions of the various types of leukocytes in the circulating blood are within normal range. Origin: iso-+ L. Norma, rule, + G. Kytos, cell, + -osis, condition (05 Mar 2000) |
| isopathy | <medicine> The system which undertakes to cure a disease by means of the virus of the same disease. The theory of curing a diseased organ by eating the analogous organ of a healthy animal. The doctrine that the power of therapeutics is equal to that of the causes of disease. Origin: Iso- + Gr. Suffering. Source: Websters Dictionary (01 Mar 1998) |
| isopenicillin N epimerase | <enzyme> From streptomyces clavuligerus; converts isopenicillin n to penicillin n Registry number: EC 5.1.1.- Synonym: cefd protein (26 Jun 1999) |
| isopenicillin N synthetase | <enzyme> Oxidatively cyclises delta(l-alpha-aminoadipyl)-l-cysteinyl-d-valine forming the bicyclo compound isopenicillin n; as of 9/27/95 see also record for alpha-aminoadipyl-cysteinyl-valine synthetase Chemical name: synthetase, isopenicillin n Registry number: EC 6.3.2.- Synonym: acv cyclase, delta-(alpha-aminoadipyl)-cysteinyl-valine cyclase, pcbc gene product, ipna gene product, ipn synthase (26 Jun 1999) |
| isopentenyladenosine | <chemical> N(6)-[delta(3)-isopentenyl]adenosine. Isopentenyl derivative of adenosine which is a member of the cytokinin family of plant growth regulators. Chemical name: Adenosine, N-(3-methyl-2-butenyl)- (12 Dec 1998) |
| isopentenylpyrophosphate | H2C==C(CH3)CH2CH2OP2O 62-;an intermediate in the biosynthesis of steroids, terpenes, dolichol, and prenylated proteins. (05 Mar 2000) |
| isopentyl | See: amyl. (05 Mar 2000) |
| isopepsin | <physiology> Pepsin modified by exposure to a temperature of from 40 deg to 60 deg C. Origin: Iso- + pepsin. Source: Websters Dictionary (01 Mar 1998) |
| isopeptidase | <enzyme> Cleaves chromatin protein a24 at the isopeptide bond between cooh terminal glycylglycine attached to ubiquitin and the epsilon amino acid residue of lysine of histone h2a Registry number: EC 4.3.- Synonym: h2a-ubiquitin hydrolase, isopeptidase t, ipaset (26 Jun 1999) |