Related ArticlesNMR structure and metal interactions of the CopZ copper chaperone.
J Biol Chem. 1999 Aug 6;274(32):22597-603
Authors: Wimmer R, Herrmann T, Solioz M, Wüthrich K
A recently discovered family of proteins that function as copper chaperones route copper to proteins that either require it for their function or are involved in its transport. In Enterococcus hirae the copper chaperone function is performed by the 8-kDa protein CopZ. This paper describes the NMR structure of apo-CopZ, obtained using uniformly (15)N-labeled CopZ overexpressed in Escherichia coli and NMR studies of the impact of Cu(I) binding on the CopZ structure. The protein has a betaalphabetabetaalphabeta fold, where the four beta-strands form an antiparallel twisted beta-sheet, and the two helices are located on the same side of the beta-sheet. A sequence motif GMXCXXC in the loop between the first beta-strand and the first alpha-helix contains the primary ligands, which bind copper(I). Binding of copper(I) caused major structural changes in this molecular region, as manifested by the fact that most NMR signals of the loop and the N-terminal part of the first helix were broadened beyond detection. This effect was strictly localized, because the remainder of the apo-CopZ structure was maintained after addition of Cu(I). NMR relaxation data showed a decreased correlation time of overall molecular tumbling for Cu(I)-CopZ when compared with apo-CopZ, indicating aggregation of Cu(I)-CopZ. The structure of CopZ is the first three-dimensional structure of a cupro-protein for which the metal ion is an exchangeable substrate rather than an integral part of the structure. Implications of the present structural work for the in vivo function of CopZ are discussed, whereby it is of special interest that the distribution of charged residues on the CopZ surface is highly uneven and suggests preferred recognition sites for other proteins that might be involved in copper transfer.
Probing the Interaction of Cisplatin with the Human Copper Chaperone Atox1 by Solution and In-Cell NMR Spectroscopy
Probing the Interaction of Cisplatin with the Human Copper Chaperone Atox1 by Solution and In-Cell NMR Spectroscopy
Fabio Arnesano, Lucia Banci, Ivano Bertini, Isabella C. Felli, Maurizio Losacco and Giovanni Natile
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja207346p/aop/images/medium/ja-2011-07346p_0003.gif
Journal of the American Chemical Society
DOI: 10.1021/ja207346p
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/9nWkAzWuq20
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[NMR paper] A NMR study of the interaction of a three-domain construct of ATP7A with copper(I) and copper(I)-HAH1: the interplay of domains.
A NMR study of the interaction of a three-domain construct of ATP7A with copper(I) and copper(I)-HAH1: the interplay of domains.
Related Articles A NMR study of the interaction of a three-domain construct of ATP7A with copper(I) and copper(I)-HAH1: the interplay of domains.
J Biol Chem. 2005 Nov 18;280(46):38259-63
Authors: Banci L, Bertini I, Cantini F, Chasapis CT, Hadjiliadis N, Rosato A
ATP7A is a P-type ATPase involved in copper(I) homeostasis in humans. It possesses a long N-terminal tail protruding into the cytosol and containing six...
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[NMR paper] An NMR study of the interaction between the human copper(I) chaperone and the second
An NMR study of the interaction between the human copper(I) chaperone and the second and fifth metal-binding domains of the Menkes protein.
Related Articles An NMR study of the interaction between the human copper(I) chaperone and the second and fifth metal-binding domains of the Menkes protein.
FEBS J. 2005 Feb;272(3):865-71
Authors: Banci L, Bertini I, Ciofi-Baffoni S, Chasapis CT, Hadjiliadis N, Rosato A
The interaction between the human copper(I) chaperone, HAH1, and one of its two physiological partners, the Menkes disease protein...
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[NMR paper] Folding and domain-domain interactions of the chaperone PapD measured by 19F NMR.
Folding and domain-domain interactions of the chaperone PapD measured by 19F NMR.
Related Articles Folding and domain-domain interactions of the chaperone PapD measured by 19F NMR.
Biochemistry. 2004 Nov 2;43(43):13775-86
Authors: Bann JG, Frieden C
The folding of the two-domain bacterial chaperone PapD has been studied to develop an understanding of the relationship between individual domain folding and the formation of domain-domain interactions. PapD contains six phenylalanine residues, four in the N-terminal domain and two in the...
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[NMR paper] X-ray absorption and NMR spectroscopic studies of CopZ, a copper chaperone in Bacillu
X-ray absorption and NMR spectroscopic studies of CopZ, a copper chaperone in Bacillus subtilis: the coordination properties of the copper ion.
Related Articles X-ray absorption and NMR spectroscopic studies of CopZ, a copper chaperone in Bacillus subtilis: the coordination properties of the copper ion.
Biochemistry. 2003 Mar 4;42(8):2467-74
Authors: Banci L, Bertini I, Del Conte R, Mangani S, Meyer-Klaucke W
XAS studies have been performed, under various experimental conditions, on a copper(I)-transporting protein, CopZ, of Bacillus subtilis....
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[NMR paper] Metal-ligand interactions in perturbed blue copper sites: a paramagnetic (1)H NMR stu
Metal-ligand interactions in perturbed blue copper sites: a paramagnetic (1)H NMR study of Co(II)-pseudoazurin.
Related Articles Metal-ligand interactions in perturbed blue copper sites: a paramagnetic (1)H NMR study of Co(II)-pseudoazurin.
J Biol Inorg Chem. 2003 Jan;8(1-2):75-82
Authors: Fernández CO, Niizeki T, Kohzuma T, Vila AJ
Pseudoazurin is an electron transfer copper protein, a member of the cupredoxin family. The protein is frequently found in denitrifying bacteria, where it is the electron donor of nitrite reductase. The copper at...
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[NMR paper] Metal-ligand interplay in blue copper proteins studied by 1H NMR spectroscopy: Cu(II)
Metal-ligand interplay in blue copper proteins studied by 1H NMR spectroscopy: Cu(II)-pseudoazurin and Cu(II)-rusticyanin.
Related Articles Metal-ligand interplay in blue copper proteins studied by 1H NMR spectroscopy: Cu(II)-pseudoazurin and Cu(II)-rusticyanin.
J Am Chem Soc. 2002 Nov 20;124(46):13698-708
Authors: Donaire A, Jiménez B, Fernández CO, Pierattelli R, Niizeki T, Moratal JM, Hall JF, Kohzuma T, Hasnain SS, Vila AJ
The blue copper proteins (BCPs), pseudoazurin from Achromobacter cycloclastes and rusticyanin from Thiobacillus...
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[NMR paper] Pilus chaperone FimC-adhesin FimH interactions mapped by TROSY-NMR.
Pilus chaperone FimC-adhesin FimH interactions mapped by TROSY-NMR.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.nature.com-images-lo_nsb.gif Related Articles Pilus chaperone FimC-adhesin FimH interactions mapped by TROSY-NMR.
Nat Struct Biol. 1999 Apr;6(4):336-9
Authors: Pellecchia M, Sebbel P, Hermanns U, Wüthrich K, Glockshuber R
The 23 kDa two-domain periplasmic chaperone FimC from Escherichia coli is required for the assembly of type-1 pili, which are filamentous, highly oligomeric protein complexes anchored to the outer...