(redirected from Ribonucleases)
Also found in: Thesaurus, Medical, Encyclopedia.


 (rī′bō-no͞o′klē-ās′, -āz′, -nyo͞o′-)
Any of various enzymes that break down RNA. Also called RNase.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌraɪbəʊˈnjuːkliːˌeɪs; -ˌeɪz)
(Biochemistry) any of a group of enzymes that catalyse the hydrolysis of RNA
[C20: from ribonucle(ic acid) + -ase]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌraɪ boʊˈnu kliˌeɪs, -ˌeɪz, -ˈnyu-)

any of a class of enzymes that catalyze the hydrolysis of RNA. Also called RNase, RNAase.
ri`bo•nu•cle′ic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ribonuclease - a transferase that catalyzes the hydrolysis of ribonucleic acid
transferase - any of various enzymes that move a chemical group from one compound to another compound
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Ilinskaya, "Cellular targets of antitumor ribonucleases," Molekuliarnaia Biologiia, vol.
Ilinskaya, "Phylogenetic distribution of extracellular guanyl-preferring ribonucleases renews taxonomic status of two Bacillus strains," Journal of General and Applied Microbiology, vol.
(12) However, unexpected was that nearly 30% of the [sup.3]H radioactivity was always incorporated into an undefined component of dsRNA, referred to as nonnucleoside material (NNM), while the remaining [sup.3]H counts were evenly distributed in the two terminal nucleosides C' and U' that were identified after digestion of labeled RNA by ribonucleases (Fig.
Yakovlev 1994.High sequence similarity between a ribonuclease from ginseng calluses and fungus-elicited proteins from parsley indicates that intracellular pathogenesis-related proteins are ribonucleases.
Although RNA is easily and successfully isolated from most cells and tissues, intact RNA extraction from the pancreas is difficult due to the high level of its ribonucleases (RNases).
They derive from large primary transcripts, which are sequentially processed by the type III ribonucleases Drosha and Dicer to give rise to a small RNA duplex.
Ebert et al., "Style self-incompatibility gene products of Nicotiana alata are ribonucleases," Nature, vol.
Many of the established RNA isolation protocols are based on highly toxic chaotropic agents such as phenol, phenol/chloroform or guanidine thiocyanate which quickly denature the endogenous ribonucleases in tissues [8].
[11] Ilinskaya, O.N., and Makarov, A.A., 2005, "Whey Ribonucleases Induce Tumor Cell Death".
1995, 1996), antifungal (Lam and Ng 2001; Wang and Ng 2004a) and HIV-1 reverse transcriptase inhibitory (Lam and Ng 2001; Wang and Ng 2001 a) activities have been purified and characterized from mushrooms including laccases (Wang and Ng 2004b), antifungal proteins (Lam and Ng 2001; Wang and Ng 2004c), ribonucleases, ribosome-inactivating proteins (Wang and Ng 2000a, 2001b), ubiquitin-like peptides (Wang et al.