Source:http://linkedlifedata.com/resource/pubmed/id/10944349
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 8
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pubmed:dateCreated |
2000-10-23
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pubmed:abstractText |
The enzyme PdxJ catalyzes the condensation of 1-deoxy-D-xylulose-5-phosphate (DXP) and 1-amino-3-oxo-4-(phosphohydroxy)propan-2-one to form pyridoxine 5'-phosphate (PNP). The protein from Escherichia coli has been crystallized in several forms under different conditions. The best diffracting crystals were obtained by a combination of the hanging-drop vapour-diffusion and microseeding techniques. Using an in-house image plate, the PdxJ crystals diffracted under cryo-conditions to 2.6 A resolution. The space group has been determined as C222(1), with unit-cell parameters a = 132.5, b = 154. 4, c = 131.4 A, corresponding to four monomers per asymmetric unit. In the search for heavy-atom derivatives, a mercury derivative has been interpreted. The 12 mercury sites located are related by 222 symmetry and, in combination with self-rotation search analyses and gel-filtration experiments, indicate the quaternary assembly of PdxJ into octamers with 422 symmetry.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Escherichia coli Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Ligases,
http://linkedlifedata.com/resource/pubmed/chemical/Pyridoxal Phosphate,
http://linkedlifedata.com/resource/pubmed/chemical/pyridoxal phosphate biosynthetic...,
http://linkedlifedata.com/resource/pubmed/chemical/pyridoxine 5-phosphate
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0907-4449
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
56
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1045-8
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pubmed:dateRevised |
2007-7-24
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pubmed:meshHeading |
pubmed-meshheading:10944349-Bacterial Proteins,
pubmed-meshheading:10944349-Crystallization,
pubmed-meshheading:10944349-Crystallography, X-Ray,
pubmed-meshheading:10944349-Escherichia coli,
pubmed-meshheading:10944349-Escherichia coli Proteins,
pubmed-meshheading:10944349-Ligases,
pubmed-meshheading:10944349-Protein Structure, Quaternary,
pubmed-meshheading:10944349-Pyridoxal Phosphate
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pubmed:year |
2000
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pubmed:articleTitle |
Crystallization and preliminary X-ray crystallographic analysis of PdxJ, the pyridoxine 5'-phosphate synthesizing enzyme.
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pubmed:affiliation |
Max-Planck-Institute of Biochemistry, Department of Structural Investigation, Am Klopferspitz 18a, D-82152 Martinsried, Germany.
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pubmed:publicationType |
Journal Article
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