X-ray crystal structure of SANGIVAMYCIN (cas 18417-89-5), a potent inhibitor of protein kinases

Add time:09/02/2019    Source:sciencedirect.com

The X-ray crystal structure of sangivamycin, a potent nucleoside inhibitor of protein kinases, has been determined. Sangivamycin crystallizes from water with its purine ring in a conformation anti to its ribose sugar. Such an anti conformation has been detected in solution for sangivamycin and other potent protein kinase inhibitors and appears to correlate with inhibitor potency [(1990) Biochemistry (in press)]. An intramolecular hydrogen bond between purine ring substituents is detected in the X-ray structure and may be an important structural feature of sangivamycin related to its degree of inhibition of rhodopsin kinase and of protein kinases C and A.

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