Journal
FEBS LETTERS
Volume 540, Issue 1-3, Pages 15-20Publisher
WILEY
DOI: 10.1016/S0014-5793(03)00225-4
Keywords
cytotoxic ribonuclease; catalytic activity; structure; stability; positive charge; endocytosis
Funding
- FIC NIH HHS [TW01058] Funding Source: Medline
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Many ribonucleases (RNases) are highly cytotoxic. In some cases, they attack selectively malignant cells, triggering apoptotic response, and therefore are considered as alternative chemotherapeutic drugs. Factors that determine the cytotoxicity of RNases, primarily of those of microbial origin, are reviewed here. These factors include catalytic activity, ability to escape natural inhibitors, stability, and efficiency of internalization. The latter is, in turn, determined by positive charge on the molecule and interaction with cell membrane. Cellular targets and molecular determinants of RNases decisive for their cytotoxic action are characterized. (C) 2003 Federation of European Biochemical Societies. Published by Elsevier Science B.V. All rights reserved.
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