1qhq
From Proteopedia
| Line 4: | Line 4: | ||
|PDB= 1qhq |SIZE=350|CAPTION= <scene name='initialview01'>1qhq</scene>, resolution 1.55Å | |PDB= 1qhq |SIZE=350|CAPTION= <scene name='initialview01'>1qhq</scene>, resolution 1.55Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1qhq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qhq OCA], [http://www.ebi.ac.uk/pdbsum/1qhq PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1qhq RCSB]</span> | ||
}} | }} | ||
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[[Category: Wilce, M C.J.]] | [[Category: Wilce, M C.J.]] | ||
[[Category: Willingham, K.]] | [[Category: Willingham, K.]] | ||
| - | [[Category: CL]] | ||
| - | [[Category: CU]] | ||
| - | [[Category: SO4]] | ||
[[Category: azurin-like]] | [[Category: azurin-like]] | ||
[[Category: blue copper protein]] | [[Category: blue copper protein]] | ||
| Line 39: | Line 39: | ||
[[Category: thermophile]] | [[Category: thermophile]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:13:43 2008'' |
Revision as of 20:13, 30 March 2008
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| , resolution 1.55Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
AURACYANIN, A BLUE COPPER PROTEIN FROM THE GREEN THERMOPHILIC PHOTOSYNTHETIC BACTERIUM CHLOROFLEXUS AURANTIACUS
Overview
Auracyanin B, one of two similar blue copper proteins produced by the thermophilic green non-sulfur photosynthetic bacterium Chloroflexus aurantiacus, crystallizes in space group P6(4)22 (a=b=115.7 A, c=54.6 A). The structure was solved using multiple wavelength anomalous dispersion data recorded about the CuK absorption edge, and was refined at 1.55 A resolution. The molecular model comprises 139 amino acid residues, one Cu, 247 H(2)O molecules, one Cl(-) and two SO(4)(2-). The final residual and estimated standard uncertainties are R=0.198, ESU=0.076 A for atomic coordinates and ESU=0.05 A for Cu---ligand bond lengths, respectively. The auracyanin B molecule has a standard cupredoxin fold. With the exception of an additional N-terminal strand, the molecule is very similar to that of the bacterial cupredoxin, azurin. As in other cupredoxins, one of the Cu ligands lies on strand 4 of the polypeptide, and the other three lie along a large loop between strands 7 and 8. The Cu site geometry is discussed with reference to the amino acid spacing between the latter three ligands. The crystallographically characterized Cu-binding domain of auracyanin B is probably tethered to the periplasmic side of the cytoplasmic membrane by an N-terminal tail that exhibits significant sequence identity with known tethers in several other membrane-associated electron-transfer proteins.
About this Structure
1QHQ is a Single protein structure of sequence from Chloroflexus aurantiacus. Full crystallographic information is available from OCA.
Reference
Crystal structure of auracyanin, a "blue" copper protein from the green thermophilic photosynthetic bacterium Chloroflexus aurantiacus., Bond CS, Blankenship RE, Freeman HC, Guss JM, Maher MJ, Selvaraj FM, Wilce MC, Willingham KM, J Mol Biol. 2001 Feb 9;306(1):47-67. PMID:11178893
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