Article
Differential effects of zinc on functionally distinct human growth hormone mutations.
Protein engineering - 1 Jul 2003
Duda K M, Brooks C L
Abstract excerpt
Human growth hormone (hGH) binds and activates lactogenic receptors by a sequential receptor dimerization mechanism. The affinity for the first lactogenic receptor is increased due to one zinc molecule linking hGH residues H18 and E174, located in helices 1 and 4, respectively, with two adjacent residues in the lactogenic receptor (D187 and H188). Two functionally unique groups of mutant hGHs have been...
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