| PEP carboxylase | <enzyme> Enzyme responsible for the primary fixation of carbon dioxide in C4 plants. Carboxylates PEP phosphoenolpyruvate to give oxaloacetate. Also important in crassulacean acid metabolism, since it is responsible for carbon dioxide fixation in the dark. (18 Nov 1997) |
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| pep pills | Colloquialism for tablets containing a central nervous system stimulant, especially amphetamine. (05 Mar 2000) |
| PEP protein tyrosine phosphatase | <enzyme> Pest - pro, glu, ser and thr; an intracellular ptpase expressed primarily by cells of haematopoietic origin; involved in regulating nuclear tyrosine phosphorylation; amino acid sequence has been determined Registry number: EC 3.1.3.- Synonym: pep ptpase, pest-enriched phosphatase, ptp-pest (26 Jun 1999) |
| PEP-UDP-GlcNAc transferase | <enzyme> Forms udp-n-acetylglucosaminyl-enolpyruvate Registry number: EC 2.4.1.- Synonym: phosphoenolpyruvate-udp-n-acetylglucosaminyltransferase, pep-udp-glcnac-enolpyruvate transferase (26 Jun 1999) |
| pepastic | <medicine> Same as Maturative. Origin: Gr. To ripen, suppurate: cf. F. Pepastique. Source: Websters Dictionary (01 Mar 1998) |
| PepB oligopeptidase | <enzyme> 66.4% identical to pepf oligopeptidase; isolated from group b streptococci; genbank u49821; do not confuse with pepb protein Registry number: EC 3.4.- Synonym: pepb gene product, oligopeptidase (26 Jun 1999) |
| PEPC proteinase | <enzyme> 553 amino acid protein from aspergillus niger; has a putative signal sequence for transport into the endoplasmic reticulum; protein is made as a large precursor which is matured by cleavage of 130-40 amino acids from its n terminus and appr. 70 amino acids from its c terminus; amino acid sequence given in first source Registry number: EC 3.4.21.- Synonym: pepc gene product (26 Jun 1999) |
| PepC thiol aminopeptidase | <enzyme> A hexameric protein; isolated from lactoccocus lactis; homologous to bleomycin hydrolase; has been sequenced Registry number: EC 3.4.11.- Synonym: thiol aminopeptidase pepc, pepc cysteine aminopeptidase (26 Jun 1999) |
| PepE endopeptidase | <enzyme> Thiol-dependent endoprotease from lactobacillus helveticus; do not confuse with pepe protein, which is an aspartic proteinase from aspergillus niger; genbank u77050 Registry number: EC 3.4.- Synonym: pepe gene product, lactobacillus (26 Jun 1999) |
| peperino | <geology> A volcanic rock, formed by the cementing together of sand, scoria, cinders, etc. Origin: It. Peperino, L. Piper pepper. So called on account of its colour. Source: Websters Dictionary (01 Mar 1998) |
| PepF oligopeptidase | <enzyme> An oligopeptidase from lactococcus lactis; exhibits substrate specificity similar to thimet oligopeptidase; contains a his-glu-x-x-his motif characteristic of metallopeptidases; mw 70 kD; genbank z32522 Registry number: EC 3.4.24.- Synonym: pepf gene product, pepf1 gene product, pepf2 gene product (26 Jun 1999) |
| peplis | <botany> A genus of plants including water purslane. Origin: L, a kind of plant, Gr. Source: Websters Dictionary (01 Mar 1998) |
| peplomer | A part or subunit of the peplos of a virion, the assemblage of which produces the complete peplos, produced from the peplos by detergent treatment. Origin: see peplos (05 Mar 2000) |
| peplomycin | <chemical> (s)-n(1)-(3-((1-phenylethyl)amino)propyl)bleomycinamide. An antineoplastic agent derived from bleomycin and claimed to produce a lower incidence of pulmonary toxicity. The sulfate has been used in the treatment of malignant neoplasms of the prostate and lung. (martindale, the extra pharmacopoeia, 29th ed, p646) Pharmacological action: antibiotics, antineoplastic, antibiotics, glycopeptide. Chemical name: Bleomycinamide, N1-(3-((1-phenylethyl)amino)propyl)-, (S)- (12 Dec 1998) |
| peplos | The coat or envelope of lipoprotein material that surrounds certain virions. Origin: G. An outer garment worn by women (05 Mar 2000) |