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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 5
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pubmed:dateCreated |
1998-12-14
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pubmed:abstractText |
The positions of eight Se atoms in a selenomethionyl 35 kDa protein were determined at 2.0 and 2.5 A resolution using the direct-methods program SnB. Data at the selenium peak, edge and remote wavelengths were measured and processed independently. Anomalous difference E magnitudes at each wavelength were derived by two different procedures: renormalized diffE values were calculated according to the equation diffE = ¿sigma[(f + f')2 + f"2]||E+|-|E-||¿1/2/2q(sigma f"2)1/2, where q is a least-squares fitted renormalization function of sinstraight theta/lambda such that <diffE2> = 1.0; and difference E magnitudes were calculated from DeltaF2. Locally normalized E magnitudes corresponding to |FA| were also derived from the combination of the data at all three wavelengths through the use of the MADSYS program suite. Each of the independent sets of anomalous difference E magnitudes was capable of producing the correct solution, as did the E data obtained from the FA data. Higher success rates with SnB were observed for the 2.0 A peak and edge diffE data.
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pubmed:grant | |
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 |
Sep
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pubmed:issn |
0907-4449
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
54
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
799-804
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9757093-Complement C3d,
pubmed-meshheading:9757093-Crystallization,
pubmed-meshheading:9757093-Crystallography, X-Ray,
pubmed-meshheading:9757093-Humans,
pubmed-meshheading:9757093-Models, Molecular,
pubmed-meshheading:9757093-Protein Conformation,
pubmed-meshheading:9757093-Software,
pubmed-meshheading:9757093-Synchrotrons
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pubmed:year |
1998
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pubmed:articleTitle |
The use of SnB to determine an anomalous scattering substructure.
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pubmed:affiliation |
Hauptman-Woodward Medical Research Institute, 73 High Street, Buffalo, NY 14203, USA, and Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA. smith@hwi.buffalo.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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