1zeq: Difference between revisions
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[[Image:1zeq.gif|left|200px]] | [[Image:1zeq.gif|left|200px]] | ||
'''1.5 A Structure of apo-CusF residues 6-88 from Escherichia coli''' | {{Structure | ||
|PDB= 1zeq |SIZE=350|CAPTION= <scene name='initialview01'>1zeq</scene>, resolution 1.50Å | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= | |||
|GENE= cusF, cusX ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]) | |||
}} | |||
'''1.5 A Structure of apo-CusF residues 6-88 from Escherichia coli''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1ZEQ is a [ | 1ZEQ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZEQ OCA]. | ||
==Reference== | ==Reference== | ||
A novel copper-binding fold for the periplasmic copper resistance protein CusF., Loftin IR, Franke S, Roberts SA, Weichsel A, Heroux A, Montfort WR, Rensing C, McEvoy MM, Biochemistry. 2005 Aug 9;44(31):10533-40. PMID:[http:// | A novel copper-binding fold for the periplasmic copper resistance protein CusF., Loftin IR, Franke S, Roberts SA, Weichsel A, Heroux A, Montfort WR, Rensing C, McEvoy MM, Biochemistry. 2005 Aug 9;44(31):10533-40. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16060662 16060662] | ||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: ob-fold]] | [[Category: ob-fold]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:34:34 2008'' | ||
Revision as of 13:34, 20 March 2008
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| 1zeq, resolution 1.50Å | |||||||||||||
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| Gene: | cusF, cusX (Escherichia coli) | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
1.5 A Structure of apo-CusF residues 6-88 from Escherichia coli
Overview
We have determined the crystal structure of apo-CusF, a periplasmic protein involved in copper and silver resistance in Escherichia coli. The protein forms a five-stranded beta-barrel, classified as an OB-fold, which is a unique topology for a copper-binding protein. NMR chemical shift mapping experiments suggest that Cu(I) is bound by conserved residues H36, M47, and M49 located in beta-strands 2 and 3. These residues are clustered at one end of the beta-barrel, and their side chains are oriented toward the interior of the barrel. Cu(I) can be modeled into the apo-CusF structure with only minimal structural changes using H36, M47, and M49 as ligands. The unique structure and metal binding site of CusF are distinct from those of previously characterized copper-binding proteins.
About this Structure
1ZEQ is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
A novel copper-binding fold for the periplasmic copper resistance protein CusF., Loftin IR, Franke S, Roberts SA, Weichsel A, Heroux A, Montfort WR, Rensing C, McEvoy MM, Biochemistry. 2005 Aug 9;44(31):10533-40. PMID:16060662
Page seeded by OCA on Thu Mar 20 15:34:34 2008
