| O-(triethylaminoethyl) cellulose | Cellulose to which triethylaminoethyl groups have been attached; used in ion-exchange chromatography. Synonym: O-(triethylaminoethyl) cellulose. (05 Mar 2000) |
|---|---|
| O-acetylcarnitine | The acetyl derivative of carnitine formed by carnitine acetyltransferase. Facilitates acetyl transport into the mitochondria and is an important fuel source for sperm. (05 Mar 2000) |
| O-acetylhomoserine (thiol)-lyase | <enzyme> With hydrogen sulfide, forms homocysteine Registry number: EC 4.2.99.10 Synonym: acetylhomoserine sulfhydrylase, homocysteine synthase, oah sulfhydrylase, o-acetylhomoserine sulfhydrylase, o-acetyl-l-homoserine sulfhydrylase, o-acetylhomoserine-o-acetylserine sulfhydrylase, met25 sulfhydrylase, o-acetylserine-o-acetylhomoserine sulfohydro-lyase, aahshase (26 Jun 1999) |
| o-aminoazotoluene | <chemical> An azo dye with carcinogenic properties. Pharmacological action: carcinogens, dyes. Chemical name: Benzenamine, 2-methyl-4-((2-methylphenyl)azo)- (12 Dec 1998) |
| o-aminobenzoic acid | One of the products of tryptophan catabolism. Synonym: o-aminobenzoic acid. (05 Mar 2000) |
| O-antigen depolymerase | <enzyme> Cleaves surface o-polysaccharide (o-antigen)of salmonella anatum Registry number: EC 3.2.1.- (26 Jun 1999) |
| O-antigen polymerase | <enzyme> Involved in the binding of o-antigen repeat units and in polymerizing into the o-antigen chain; mw 43.7 kD; genbank x71970 Registry number: EC 2.4.1.- Synonym: rfc protein, s. Flexneri, rfc gene product, o-antigen polymerase, shigella, o-antigen polymerase, pseudomonas, rfc protein, pseudomonas, o-antigen polymerase, e. Coli (26 Jun 1999) |
| o-benzenedialdehyde | <chemical> 1,2-benzenedicarboxaldehyde. A reagent that forms fluorescent conjugation products with primary amines. It is used for the detection of many biogenic amines, peptides, and proteins in nanogram quantities in body fluids. Pharmacological action: disinfectants, indicators and reagents. Chemical name: 1,2-Benzenedicarboxaldehyde (12 Dec 1998) |
| o-chlorobenzalmalononitrile | A strong lacrimator used in riot control. (05 Mar 2000) |
| o-chlorobenzylidenemalonitrile | <chemical> ((2-chlorophenyl)methylene)propanedinitrile. A riot control agent which causes temporary irritation of the eyes and the mucosal surface of the respiratory tract. It is a more potent irritant than omega-chloroacetophenone, but less incapacitating. Pharmacological action: tear gases. Chemical name: Propanedinitrile, ((2-chlorophenyl)methylene)- (12 Dec 1998) |
| o-chlorophenol | An antiseptic liquid, used in the treatment of lupus. (05 Mar 2000) |
| O-diethylaminoethyl cellulose | Cellulose to which diethylaminoethyl groups have been attached; used in anion-exchange chromatography. Synonym: DEAE-cellulose. (05 Mar 2000) |
| o-dihydricphenol meta-O-methyltransferase | <enzyme> Involved in flavone glycoside biosynthesis Registry number: EC 2.1.1.- Synonym: dhcp-mtf (26 Jun 1999) |
| o-diphenolase | <enzyme> An enzyme of the oxidoreductase class that catalyses the reaction between catechol and oxygen to yield benzoquinone and water. It is a complex of copper-containing proteins that acts also on a variety of substituted catechols. Chemical name: 1,2-Benzenediol:oxygen oxidoreductase Registry number: EC 1.10.3.1 (12 Dec 1998) |
| O-phosphocholine | (CH3)3N+-CH2 CH2-OPO3 H-; choline O-phosphate;important in choline metabolism, e.g., as in cytidinediphosphocholine and in the biosynthesis of lecithins. Synonym: O-phosphocholine, phosphorylcholine. Phosphocholine cytidylyltransferase, an enzyme that catalyses the reaction of phosphocholine with CTP to form pyrophosphate and CDP-choline; the rate-limiting step of lecithin biosynthesis; the cytosolic form of the enzyme is inactive (a phosphorylated form of the enzyme). Phosphocholine diacylglycerol transferase, an enzyme in lecithin biosynthesis that catalyses the reaction of 1,2-diacylglycerol with CDP-choline to form CMP and phosphatidylcholine. (05 Mar 2000) |