新霉素钠盐产品是Novobiocin is a coumarin antibiotic isolated from Streptomyces species, that inhibits the ATPase activity of DNA gyrase. Its antibacterial activity arises from competitive inhibition of the ATPase reaction catalyzed by the GyrB subunit. In addition to permitting relaxation of negative supercoils, novobiocin has been used to generate positively supercoiled DNA. It has also been shown to inhibit the chaperone activity of Hsp90 as well as acting as an inhibitor of DNA Topoisomerase II.
