Source:http://linkedlifedata.com/resource/pubmed/id/14646070
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 12
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pubmed:dateCreated |
2003-12-3
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pubmed:abstractText |
The crystal structure of viscotoxin A3 (VT A3) extracted from European mistletoe (Viscum album L.) has been solved using the anomalous diffraction of the native S atoms measured in-house with Cu Kalpha radiation to a resolution of 2.2 A and truncated to 2.5 A. A 1.75 A resolution synchrotron data set was used for phase expansion and refinement. An innovation in the dual-space substructure-solution program SHELXD enabled the individual S atoms of the disulfide bonds to be located using the Cu Kalpha data; this resulted in a marked improvement in the phasing compared with the use of super-S atoms. The VT A3 monomer consists of 46 amino acids with three disulfide bridges and has an overall fold resembling the canonical architecture of the alpha- and beta-thionins, a capital letter L. The asymmetric unit consists of two monomers related by a local twofold axis and held together by hydrophobic interactions between the monomer units. One phosphate anion (confirmed by 31P-NMR and MS) is associated with each monomer.
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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/Disulfides,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphates,
http://linkedlifedata.com/resource/pubmed/chemical/Plant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/viscotoxin,
http://linkedlifedata.com/resource/pubmed/chemical/viscotoxin A3, Viscum album
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0907-4449
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
59
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2125-32
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:14646070-Binding Sites,
pubmed-meshheading:14646070-Crystallography, X-Ray,
pubmed-meshheading:14646070-Disulfides,
pubmed-meshheading:14646070-Models, Molecular,
pubmed-meshheading:14646070-Nuclear Magnetic Resonance, Biomolecular,
pubmed-meshheading:14646070-Phosphates,
pubmed-meshheading:14646070-Plant Proteins,
pubmed-meshheading:14646070-Protein Conformation,
pubmed-meshheading:14646070-Static Electricity,
pubmed-meshheading:14646070-Synchrotrons,
pubmed-meshheading:14646070-Viscum album
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pubmed:year |
2003
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pubmed:articleTitle |
Structure of viscotoxin A3: disulfide location from weak SAD data.
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pubmed:affiliation |
Lehrstuhl für Strukturchemie, Georg-August Universität, Tammannstrasse 4, Göttingen, Germany.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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