1q8l

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spinqualitylabelsall models PDB ID 1q8l Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image
Gene:	ATP7A OR MNK OR MC1 (Homo sapiens)
Coordinates:	save as pdb, mmCIF, xml

Second Metal Binding Domain of the Menkes ATPase

Contents 1 Overview 2 Disease 3 About this Structure 4 Reference

Overview

Biological utilisation of copper requires that the metal, in its ionic forms, be meticulously transported, inserted into enzymes and regulatory proteins, and excess be excreted. To understand the trafficking process, it is crucial that the structures of the proteins involved in the varied processes be resolved. To investigate copper binding to a family of structurally related copper-binding proteins, we have characterised the second Menkes N-terminal domain (MNKr2). The structure, determined using 1H and 15N heteronuclear NMR, of the reduced form of MNKr2 has revealed two alpha-helices lying over a single beta-sheet and shows that the binding site, a Cys(X)2Cys pair, is located on an exposed loop. 1H-15N HSQC experiments demonstrate that binding of Cu(I) causes changes that are localised to conserved residues adjacent to the metal binding site. Residues in this area are important to the delivery of copper by the structurally related Cu(I) chaperones. Complementary site-directed mutagenesis of the adjacent residues has been used to probe the structural roles of conserved residues.

Disease

Known diseases associated with this structure: Analgesia from kappa-opioid receptor agonist, female-specific , OMIM:[155555], Cutis laxa, neonatal OMIM:[300011], Melanoma susceptibility to OMIM:[155555], Menkes disease OMIM:[300011], Occipital horn syndrome OMIM:[300011], Oculocutaneous albinism, type II, modifier of OMIM:[155555], Skin/hair/eye pigmentation 2, blond hair/fair skin OMIM:[155555], Skin/hair/eye pigmentation 2, red hair/fair skin OMIM:[155555], UV-induced skin damage OMIM:[155555]

About this Structure

1Q8L is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structure and metal binding studies of the second copper binding domain of the Menkes ATPase., Jones CE, Daly NL, Cobine PA, Craik DJ, Dameron CT, J Struct Biol. 2003 Sep;143(3):209-18. PMID:14572476

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