OASIS: a computer program for breaking phase ambiguity in one-wavelength anomalous scattering or single isomorphous substitution (replacement) data

Authors
Hao, Q Gu, YX Zheng, CD Fan, HF
Citation
Q. Hao et al., OASIS: a computer program for breaking phase ambiguity in one-wavelength anomalous scattering or single isomorphous substitution (replacement) data, J APPL CRYS, 33(2), 2000, pp. 980-981
Citations number
11
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF APPLIED CRYSTALLOGRAPHY
ISSN journal
00218898 → ACNP
Volume
33
Issue
2
Year of publication
2000
Part
3
Pages
980 - 981
Database
ISI
SICI code
0021-8898(20000601)33:2<980:OACPFB>2.0.ZU;2-U
Abstract
The phase problem is reduced to a sign problem once the anomalous-scatterer or the replacing-heavy-atom sites are located. OASIS adopts the CCP4 forma t [Collaborative Computational Project, Number 4 (1994). Acta Cryst. D50, 7 60- 763]. It applies a direct-method procedure to break the phase ambiguity intrinsic to one-wavelength anomalous scattering (OAS) or single isomorpho us replacement (SIR) data.