2aj0
From Proteopedia
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| - | [[Image:2aj0.gif|left|200px]] | + | [[Image:2aj0.gif|left|200px]] |
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| - | '''Solution structure of apoCadA''' | + | {{Structure |
| + | |PDB= 2aj0 |SIZE=350|CAPTION= <scene name='initialview01'>2aj0</scene> | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Cadmium-exporting_ATPase Cadmium-exporting ATPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.3.3 3.6.3.3] | ||
| + | |GENE= cadA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1639 Listeria monocytogenes]) | ||
| + | }} | ||
| + | |||
| + | '''Solution structure of apoCadA''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 2AJ0 is a [ | + | 2AJ0 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Listeria_monocytogenes Listeria monocytogenes]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AJ0 OCA]. |
==Reference== | ==Reference== | ||
| - | Structural basis for metal binding specificity: the N-terminal cadmium binding domain of the P1-type ATPase CadA., Banci L, Bertini I, Ciofi-Baffoni S, Su XC, Miras R, Bal N, Mintz E, Catty P, Shokes JE, Scott RA, J Mol Biol. 2006 Feb 24;356(3):638-50. Epub 2005 Dec 5. PMID:[http:// | + | Structural basis for metal binding specificity: the N-terminal cadmium binding domain of the P1-type ATPase CadA., Banci L, Bertini I, Ciofi-Baffoni S, Su XC, Miras R, Bal N, Mintz E, Catty P, Shokes JE, Scott RA, J Mol Biol. 2006 Feb 24;356(3):638-50. Epub 2005 Dec 5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16388822 16388822] |
[[Category: Cadmium-exporting ATPase]] | [[Category: Cadmium-exporting ATPase]] | ||
[[Category: Listeria monocytogenes]] | [[Category: Listeria monocytogenes]] | ||
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[[Category: metal binding protein]] | [[Category: metal binding protein]] | ||
| - | ''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 15:50:15 2008'' |
Revision as of 13:50, 20 March 2008
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| Gene: | cadA (Listeria monocytogenes) | ||||||
| Activity: | Cadmium-exporting ATPase, with EC number 3.6.3.3 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Solution structure of apoCadA
Overview
In bacteria, P1-type ATPases are responsible for resistance to di- and monovalent toxic heavy metals by taking them out of the cell. These ATPases have a cytoplasmic N terminus comprising metal binding domains defined by a betaalphabetabetaalphabeta fold and a CXXC metal binding motif. To check how the structural properties of the metal binding site in the N terminus can influence the metal specificity of the ATPase, the first structure of a Cd(II)-ATPase N terminus was determined by NMR and its coordination sphere was investigated by X-ray absorption spectroscopy. A novel metal binding environment was found, comprising the two conserved Cys residues of the metal binding motif and a Glu in loop 5. A bioinformatic search identifies an ensemble of highly homologous sequences presumably with the same function. Another group of highly homologous sequences is found which can be referred to as zinc-detoxifying P1-type ATPases with the metal binding pattern DCXXC in the N terminus. Because no carboxylate groups participate in Cu(I) or Ag(I) binding sites, we suggest that the acidic residue plays a key role in the coordination properties of divalent cations, hence conferring a function to the N terminus in the metal specificity of the ATPase.
About this Structure
2AJ0 is a Single protein structure of sequence from Listeria monocytogenes. Full crystallographic information is available from OCA.
Reference
Structural basis for metal binding specificity: the N-terminal cadmium binding domain of the P1-type ATPase CadA., Banci L, Bertini I, Ciofi-Baffoni S, Su XC, Miras R, Bal N, Mintz E, Catty P, Shokes JE, Scott RA, J Mol Biol. 2006 Feb 24;356(3):638-50. Epub 2005 Dec 5. PMID:16388822
Page seeded by OCA on Thu Mar 20 15:50:15 2008
