| poly c | <chemical> A group of cytosine ribonucleotides in which the phosphate residues of each cytosine ribonucleotide act as bridges in forming diester linkages between the ribose moieties. Chemical name: 5'-Cytidylic acid, homopolymer (12 Dec 1998) |
|---|---|
| poly da-dt | <chemical> Polydeoxyribonucleotides made up of deoxyadenine nucleotides and thymine nucleotides. Present in DNA preparations isolated from crab species. Synthetic preparations have been used extensively in the study of DNA. Chemical name: 5'-Adenylic acid, thymidylyl-(5'-3')-2'-deoxy-, homopolymer (12 Dec 1998) |
| poly g | <chemical> A group of guanine ribonucleotides in which the phosphate residues of each guanine ribonucleotide act as bridges in forming diester linkages between the ribose moieties. Chemical name: 5'-Guanylic acid, homopolymer (12 Dec 1998) |
| poly I | A group of inosine ribonucleotides in which the phosphate residues of each inosine ribonucleotide act as bridges in forming diester linkages between the ribose moieties. (12 Dec 1998) |
| poly I-c | <chemical> Interferon inducer consisting of a synthetic, mismatched double-stranded RNA. The polymer is made of one strand each of polyinosinic acid and polycytidylic acid. Pharmacological action: antiviral agents, interferon inducers. Chemical name: 5'-Inosinic acid, homopolymer, complex with 5'-cytidylic acid homopolymer (1:1) (12 Dec 1998) |
| poly polymerase | <enzyme> An enzyme that catalyses the addition of adenine residues to the 3' end of pre-messenger RNAs to form the poly(A) tail. (09 Oct 1997) |
| poly t | <chemical> A group of thymine nucleotides in which the phosphate residues of each thymine nucleotide act as bridges in forming diester linkages between the deoxyribose moieties. Chemical name: 5'-Thymidylic acid, homopolymer (12 Dec 1998) |
| poly u | <chemical> A group of uridine ribonucleotides in which the phosphate residues of each uridine ribonucleotide act as bridges in forming diester linkages between the ribose moieties. Chemical name: 5'-Uridylic acid, homopolymer (12 Dec 1998) |
| poly(3-hydroxyalkanoic acid) synthase | <enzyme> Synthesises polyhydroxyalkanoates consisting of medium-chain-length 3-hydroxyalkanoic acids, including poly(3-hydroxybutyrate) Registry number: EC 2.3.1.- Synonym: pha synthase, polyhydroxyalkanoate synthase (26 Jun 1999) |
| poly(3-hydroxyalkenoate)polymerase | <enzyme> Forms polyesters from medium chain length 3-hydroxy fatty acyl-CoA Registry number: EC 2.3.1.- Synonym: pha polymerase, phac1 gene product (26 Jun 1999) |
| poly(3-hydroxyoctanoic acid) depolymerase | <enzyme> From pseudomona fluorescens gk13; hydrolyzes p(3ho) to form mainly the dimeric ester of 3-hydroxyoctanoic acid Registry number: EC 3.1.1.- Synonym: p(3ho) depolymerase (26 Jun 1999) |
| poly(A) | 1. <abbreviation> Poly(adenylic acid). 2. Iridoid indole alkaloid isolated from Vinca sp.; may have pharmacological applications; falling in this class are vinblastine and vincristine. 3. Excretion of d-glyceric acid in the urine; found in renal calculi. 4. An inborn error in metabolism resulting in d-glyceric aciduria. 5. A class of basic antibiotic peptides, found in neutrophils, that apparently kill bacteria by causing membrane damage. (05 Mar 2000) |
| poly(A) polymerase | <enzyme> An enzyme that catalyses the formation of a poly(adenylic acid) sequence. (05 Mar 2000) |
| poly(A)-specific ribonuclease | <enzyme> From vigna unguiculata seedlings; bifunctional enzyme responsible for both poly(a)-polymerizing and poly(a)-hydrolyzing activities; removes the poly(a) tail as the first step in degrading mRNA Registry number: EC 3.1.13.4 Synonym: poly(a) nuclease, mRNA poly(a) nuclease, poly(a) ribonuclease (pan), pan2 protein (26 Jun 1999) |
| poly(beta-D-mannuronate) lyase | <enzyme> Amino acid sequence has been determined for sp1 and sp2 isoenzymes from midgut of wreath shell, turbo cornutus Registry number: EC 4.2.2.3 Synonym: poly(1,4-beta-d-mannuronide)lyase, alginate lyase I, alginate lyase, aly gene product, mannuronate lyase sp1, mannuronate lyase sp2 (26 Jun 1999) |