Source:http://linkedlifedata.com/resource/pubmed/id/11679732
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 11
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pubmed:dateCreated |
2001-10-26
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pubmed:abstractText |
The cDNA encoding Peking duck Cu,Zn superoxide dismutase (dSOD) was cloned and sequenced. The recombinant enzyme was overexpressed in Escherichia coli, purified to homogeneity and crystallized using the sitting-drop vapour-diffusion technique. Trigonal crystals of dSOD were obtained at 278 K at low ionic strength and around neutral pH. These crystals belong to space group P3(2)21, with unit-cell parameters a = 124.4, c = 163.5 A, gamma = 120 degrees. The asymmetric unit contains four dimers (eight monomers of Cu,Zn dSOD) and has a 56% solvent content, with a V(M) of 2.8 A(3) Da(-1). On a Rigaku R-AXIS IIc image-plate area-detector system, the crystal diffracted to 2.9 A. Unusual supermolecular double-helix packing with 9(2)2 non-crystallographic symmetry in crystals has been observed in the initial structural analysis.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0907-4449
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
57
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1646-9
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pubmed:dateRevised |
2007-7-24
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pubmed:meshHeading |
pubmed-meshheading:11679732-Amino Acid Sequence,
pubmed-meshheading:11679732-Animals,
pubmed-meshheading:11679732-Crystallization,
pubmed-meshheading:11679732-Crystallography, X-Ray,
pubmed-meshheading:11679732-Ducks,
pubmed-meshheading:11679732-Models, Molecular,
pubmed-meshheading:11679732-Molecular Sequence Data,
pubmed-meshheading:11679732-Protein Conformation,
pubmed-meshheading:11679732-Recombinant Proteins,
pubmed-meshheading:11679732-Sequence Homology, Amino Acid,
pubmed-meshheading:11679732-Superoxide Dismutase
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pubmed:year |
2001
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pubmed:articleTitle |
Overexpression, purification, crystallization and preliminary X-ray diffraction analysis of Cu,Zn superoxide dismutase from Peking duck.
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pubmed:affiliation |
Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.
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pubmed:publicationType |
Journal Article
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