Skip to main content
An official website of the United States government

ribonuclease QBI-139

A nuclease of mammalian origin that cleaves the phosphodiester bond between nucleotides of ribonucleic acids with potential antineoplastic activity. Ribonuclease QBI-139 catalyzes the hydrolysis and degradation of RNA leading to the inhibition of protein synthesis and cell death.
Abbreviation:RNase QBI-139
Code name:QBI-139
Search NCI's Drug Dictionary