Chromomycin A3 from Streptomyces Griseus
An antibiotic exhibiting anti-bacterial, anti-fungal and antitumor activities. Serves as a fluorescent DNA stain. Useful for the detection of protamine deficiency in sperm chromatin. The compound blocks macromolecule synthesis by a specific, reversible interaction with DNA in the presence of bivalent metal ions. Binding to DNA minor groove mediates an efficient competitive inhibition of DNA gyrase and significantly affects topoisomerase II activity.
Antibiotics & Antibacterials
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