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ranpirnase A natural homologue of ribonuclease A isolated from the eggs of the frog Rana pipiens. Ranpirnase primarily degrades cellular transfer RNA with a substrate specificity for uridine-guanidine base-pair sequences, resulting in inhibition of protein synthesis and cytotoxicity. This agent also activates caspase-9 in mitochondria, resulting in tumor cell apoptosis. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
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Synonyms: | ![](https://webarchive.library.unt.edu/eot2008/20081024132651im_/http://www.cancer.gov/images/spacer.gif) | P-30 P-30 protein | | ![](https://webarchive.library.unt.edu/eot2008/20081024132651im_/http://www.cancer.gov/images/spacer.gif) | US brand name: | ![](https://webarchive.library.unt.edu/eot2008/20081024132651im_/http://www.cancer.gov/images/spacer.gif) | Onconase | | ![](https://webarchive.library.unt.edu/eot2008/20081024132651im_/http://www.cancer.gov/images/spacer.gif) |
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