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Pro
Symbol for proline or its radicals.
(05 Mar 2000)
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 re nata
As the occasion arises; as necessary.
Acronym: prn
Origin: L.
(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-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-transforming growth factor-alpha processing protease
<enzyme> Converts membrane-bound protgf-alpha to soluble tgf-alpha; mw 84 kD
Registry number: EC 3.4.21.-
Synonym: protgf-alpha converting enzyme, protgfalpha processing protease
(26 Jun 1999)
proaccelerin
<chemical> Heat- and storage-labile plasma glycoprotein which accelerates the conversion of prothrombin to thrombin in blood coagulation. Factor v accomplishes this by forming a complex with factor xa, phospholipid, and calcium (prothrombinase complex). Deficiency of factor v leads to owren's disease.
Chemical name: Blood-coagulation factor V
(12 Dec 1998)
proacrosin
A precursor protein of acrosin.
(05 Mar 2000)
proacrosomal
Relating to an early stage in the development of the acrosome.
(05 Mar 2000)
proacrosomal granule
<cell biology> Small carbohydrate-rich granule's appearing in vesicles of the Golgi apparatus of spermatids.
They coalesce into a single acrosomal granule contained within an acrosomal vesicle.
(05 Mar 2000)
proactinium
<chemical> Protactinium. A radioactive element of the actinide group of metals. It has the atomic symbol pa, atomic number 91, and atomic weight 231. It decays by alpha-emission.
Chemical name: Protactinium
(12 Dec 1998)
proactivator
<biochemistry> A substance that, when chemically split, yields a fragment (activator) capable of rendering another substance enzymatically active.
(05 Mar 2000)
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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)
X-Pro aminopeptidase
<enzyme> Proline specific exopeptidase
Registry number: EC 3.4.11.9
Synonym: x-prolyl aminopeptidase, proline-specific exopeptidase, aminopeptidase p
(26 Jun 1999)
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