| H+ | hydrogen ion |
|---|---|
| [H+] | hydrogen ion concentration |
| HCl | hydrogen chloride |
| HDP | hexose diphosphate; high-density polyethylene; hydrogen diphosphonate; hydroxydimethylpyrimidine |
| HF | Hageman factor; haplotype frequency; hard filled [capsule]; hay fever; head of fetus; head forward; ... |
| adenosine 3',5'-cyclic phosphate phosphodiesterase | <enzyme> An enzyme that catalyses the hydrolysis of adenosine 3',5'-cyclic phosphate forming 5'-AMP. A crucial step in the regulation of cellular adenosine 3',5'-cyclic phosphate levels. Inhibited by caffeine. Synonym: cAMP phosphodiesterase. (05 Mar 2000) |
|---|---|
| adenosine 3'-phosphate | 3'-Adenylic acid. See: adenylic acid. (05 Mar 2000) |
| adenosine 3'-phosphate 5'-phosphosulfate | 3'-phosphoadenosine 5'-phosphosulfate;an intermediate in the formation of urinary ethereal sulfates, notable for containing a "high energy" sulfate bond; the 3'-OH of adenosine is replaced by -OPO3H2, the 5'-OH by -OP(O2H)-OSO3H. Synonym: active sulfate. Acronym: PAPS (05 Mar 2000) |
| adenosine 5'-phosphate | 5'-Adenylic acid. See: adenylic acid. (05 Mar 2000) |
| adenosine cyclic phosphate | An activator of phosphorylase kinase and an effector of other enzymes, formed in muscle from ATP by adenylate cyclase and broken down to 5'-AMP by a phosphodiesterase; sometimes referred to as the "second messenger." A related compound (2',3') is also known. Synonym: cyclic adenylic acid, cyclic AMP, cyclic phosphate. Acronym: cAMP (05 Mar 2000) |
| alkyldihydroxyacetone phosphate acyltransferase | <enzyme> Catalyses acylation of alkyl-dhap Registry number: EC 2.3.1.- Synonym: adapat (26 Jun 1999) |
| alkyl dihydroxyacetone phosphate oxidoreductase | <enzyme> Forms alkyl-sn-glycerol 3-phosphate, uses NADPH Registry number: EC 1.1.1.- (26 Jun 1999) |
| alkylglycerone-phosphate synthase | <enzyme> Replaces the acyl moiety of acyldhap with a long chain fatty alcohol; intact alcohol including the oxygen atom is incorporated into alkyl-dhap Registry number: EC 2.5.1.26 Synonym: adhps, alkyl-dihydroxyacetone phosphate synthase, alkyl-dhap synthase, alkyldihydroxyacetone phosphate synthetase, acylglycerone-3-phosphate-long chain-alcohol o-3-phospho-2-oxopropanyl transferase, alkyldihydroxyacetonephosphate synthase (26 Jun 1999) |
| aluminum phosphate | AlPO4;an infusible powder, insoluble in water but soluble in alkali hydroxides, used for dental cements with calcium sulfate and sodium silicate. (05 Mar 2000) |
| aluminum phosphate gel | An aqueous suspension of between 4.0 and 5.0% of aluminum phosphate; used as an antacid. (05 Mar 2000) |
| amprotropine phosphate | 3-Diethylamino-2,2-dimethylpropyl tropate phosphate;an antispasmodic, similar in action to atropine. (05 Mar 2000) |
| arabinose-5-phosphate isomerase | <enzyme> Catalyses reversibly the conversion of arabinose phosphate to ribulosephosphate Registry number: EC 5.3.1.13 Synonym: arabinose 5-phosphate ketolisomerase, arabinosephosphate isomerase (26 Jun 1999) |
| arginine phosphate | A compound (in particular, a phosphagen) of l-arginine with phosphoric acid containing the phosphoamide bond; a source of energy in the contraction of muscle in invertebrates, corresponding to phosphocreatine in the muscles of vertebrates. Compare: phosphocreatine. Synonym: arginine phosphate. (05 Mar 2000) |
| azapetine phosphate | A potent adrenergic (alpha-receptor) blocking agent similar in action and uses to those of tolazoline; used in the treatment of peripheral vascular diseases. Chemical name: 6-Allyl-6,7-dihydro-5H-dibenz[c.e]azepine phosphate. (05 Mar 2000) |
| beta-(2-furyl)-acryloyl phosphate hydrolase | <enzyme> Used as synthetic substrate for atpase assay Registry number: EC 3.6.1.- Synonym: bfa phosphatase (26 Jun 1999) |