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hydrogenase/urease maturation nickel metallochaperone HypA
HypA is a metallochaperone that binds nickel to bring it safely to its target. The targets for Hypa are the nickel-containing enzymes [Ni,Fe]-hydrogenase and urease. The nickel coordinates with four nitrogens within the protein. The four conserved cysteines towards the C-terminus bind one zinc moiety probably to stabilise the protein fold [1]. [1]. 19621959. Structure of a nickel chaperone, HypA, from Helicobacter pylori. reveals two distinct metal binding sites.. Xia W, Li H, Sze KH, Sun H;. J Am Chem Soc. 2009;131:10031-10040. (from Pfam)
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