Drug Resistance

Zn(II)ligated bleomycin seen to bind bleomycin resistance proteins

Published in Cancer Weekly, March 25th, 2003

The Zn(II)ligated bleomycin is seen to bind bleomycin resistance proteins.

"Bleomycin (Bm), a 1.4 kDa glycopeptide excreted by Streptomyces verticillus, is a natural antibacterial compound used in therapy as a antineoplastic drug. To counteract its biological activity, cells have developed several resistance mechanisms, one of these based on proteins able to tightly bind Bm," researchers in France report.

"In this paper, the interaction of Zn²⁺Bm with the Streptoalloteichus hindustanus Bm resistance protein (ShBle) has been investigated by solution state NMR. Sequential nOe and chemical shift index have shown that the fold...

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Source: Cancer Weekly (2003-03-25)

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