poly

Abbreviated form and colloquialism for polymorphonuclear leukocyte.

1. Abbreviation for poly(adenylic acid). 2. Iridoid indole alkaloid isolated from Vinca sp.; may have pharmacologic 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 (1). 5. A class of basic antibiotic peptides, found in neutrophils, that apparently kill bacteria by causing membrane damage.

- poly(A) polymerase an enzyme that catalyzes the formation of a poly(adenylic acid) sequence.

A homopolymer of adenylic acid; often seen at the 3′ end of many eukaryotic mRNAs.

Polypeptides that are polymers of aminoacyl groups, i.e., of –NH–CHR–CO–; typically, a term used with homopolymers. See poly- (2).

A polymer of glutamic acid residues in the usual peptide linkage (α-carboxyl to α-amino). See poly- (2). SEE ALSO: poly(γ-glutamic acid). SYN: polyglutamate.

A polypeptide formed of glutamic acid residues, the γ-carboxyl group of one glutamic acid being condensed to the amino group of its neighbor; occurs naturally in the anthrax bacillus capsule.

A polymer of glycolic acid, used in absorbable surgical sutures. [see poly- (2)]

Abbreviation for poly(uridylic acid).

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polymorphonuclear

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poly 'päl-ē n, pl pol·ys -ēz a polymorphonuclear leukocyte

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(polґe) colloquial name for polymorphonuclear leukocyte.