Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 4
pubmed:dateCreated
2003-3-26
pubmed:abstractText
Five test structures (orthorhombic and trigonal trypsin, cubic and rhombohedral insulin and thaumatin) have been solved by the SAD (single-wavelength anomalous diffraction) method using highly redundant data collected at 100 K with a CCD detector, rotating-anode generator and three-circle goniometer. The very weak anomalous scattering (primarily from sulfur) was sufficient to locate all the anomalous scatterers using the integrated direct and Patterson methods in SHELXD. These positions and occupancies were used without further refinement to estimate phases that were extended to native (in-house) resolution by the sphere of influence algorithm in SHELXE. The final map correlation coefficients relative to the anisotropically refined structures were in the range 0.81-0.97. The use of highly redundant medium-resolution laboratory data for sulfur-SAD phasing combined with high-resolution synchrotron native data for phase expansion and structure refinement clearly has considerable potential.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0907-4449
pubmed:author
pubmed:issnType
Print
pubmed:volume
59
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
688-96
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
In-house measurement of the sulfur anomalous signal and its use for phasing.
pubmed:affiliation
Lehrstuhl für Strukturchemie, Georg-August Universität, Göttingen, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't