dictionary help| ribonuclease (pancreatic) | medical dictionary |
<enzyme>
<cell biology> An enzyme that transfers the 3'-phosphate of a pyrimidine ribonucleotide residue in a polynucleotide from the 5'-position of the adjoining nucleotide to the 2'-position of the pyrimidine nucleotide itself (a transferase, endonuclease action), thus breaking the chain and forming a pyrimidine 2',3'-cyclic phosphate, then (or independently) hydrolyzing this phosphodiester to leave a pyrimidine nucleoside 3'-phosphate residue (phosphodiesterase action); used in cytochemistry to selectively degrade and remove RNA as a control for staining of RNA.
(05 Mar 2000)
ribonuclease (Bacillus subtilis), ribonuclease D, ribonuclease h, calf thymus < Prev | Next > ribonuclease, pancreatic, ribonucleases
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