| widow's peak | A sharp point of hair growth in the midline of the anterior scalp margin, usually resulting from recession of hair of the temple areas, or occurring as a congenital configuration of scalp hair. (05 Mar 2000) |
|---|---|
| juxtaphrenic peak | On chest radiograph, a triangular density on top of the right diaphragmatic shadow, probably caused by tension of the phrenic nerve on the pleura over the diaphragm. (05 Mar 2000) |
| ATP citrate (pro-3S)-lyase | <enzyme> An enzyme that, in the presence of ATP and CoA, catalyses the cleavage of citrate to yield acetyl CoA, oxaloacetate, ADP, and orthophosphate. This reaction represents an important step in fatty acid biosynthesis. Chemical name: ATP:citrate oxaloacetate-lyase ((pro-S)-CH2COO(-)--acetyl-CoA) (ATP-dephosphorylating) Registry number: EC 4.1.3.8 Synonym: citrate cleavage enzyme. (12 Dec 1998) |
| RNA, transfer, pro | A transfer RNA which is specific for carrying proline to sites on the ribosomes in preparation for protein synthesis. (12 Dec 1998) |
| citrate (pro-3S)-lyase | <enzyme> Consists of two enzymes and an acyl carrier protein Registry number: EC 4.1.3.6 Synonym: citrate lyase (26 Jun 1999) |
| citrate (pro-3S)-lyase deacetylase | <enzyme> Catalyses conversion of enzymatically active acetyl-s-citrate lyase (4.1.3.6) into inactive hs-form and acetate Registry number: EC 3.1.2.- Synonym: citrate lyase deacetylase (26 Jun 1999) |
| citrate (pro-3S)-lyase ligase | <enzyme> Deacetylcitrate lyase, acetate and ATP forms citrate lyase, AMP, pi Registry number: EC 6.2.1.22 Synonym: citc gene product, acetate-sh-citrate lyase ligase, citrate lyase ligase (26 Jun 1999) |
| Pro | Symbol for proline or its radicals. (05 Mar 2000) |
| pro- | <prefix> Prefix (from both Greek and Latin) with many meanings including before, in front of, preceding, on behalf of, in place of, and the same as. Used as a word, pro of course means professional and, in medicine, it is short for prothrombin. (12 Dec 1998) |
| pro-lactase-phlorizin hydrolase | <chemical> Synonym: pro-lph (26 Jun 1999) |
| pro-ocytocin-neurophysin convertase | <enzyme> Cleaves pro-ocytocin-neurophysin at the cooh-terminal side of arg 12 to release the bioactive peptide Registry number: EC 3.4.99.- Synonym: pro-ot-np convertase, pro-oxytocin-neurophysin convertase (26 Jun 1999) |
| pro opimelanocortin | <protein> Polyprotein produced by the anterior pituitary that is cleaved to yield adrenocorticotrophin, _, _ and _ melanocyte stimulating hormones, lipotropic hormones, _ endorphin and other fragments. (18 Nov 1997) |
| pro-opiomelanocortin | <chemical> A precursor protein, mw 30,000, synthesised mainly in the anterior pituitary gland but also found in the hypothalamus, brain, and several peripheral tissues. It incorporates the amino acid sequences of acth and beta-lipotropin. These two hormones, in turn, contain the biologically active peptides msh, corticotropin-like intermediate lobe peptide, alpha-lipotropin, endorphins, and methionine enkephalin. Chemical name: Opiomelanocortin, pro- (12 Dec 1998) |
| pro-oxidants | Compounds or agents capable of generating toxic oxygen species. Compare: antioxidant. (05 Mar 2000) |
| pro re nata | As the occasion arises; as necessary. Acronym: prn Origin: L. (05 Mar 2000) |