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Article: Application of the Ps-function method to macromolecular structure determination

TitleApplication of the Ps-function method to macromolecular structure determination
Authors
Issue Date1989
PublisherThe International Union of Crystallography by Wiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0108-7673&site=1
Citation
Acta Crystallographica Section A, 1989, v. 45 n. 11, p. 794-797 How to Cite?
AbstractThe Ps function derived from anomalous-dispersion data [Okaya, Saito, & Pepinsky (1955). Phys. Rev. 98, 1857-1858] has been tested with observed data for an Hg derivative of a small protein, avian pancreatic polypeptide [Glover, Moss, Tickle, Pitts, Haneef, Wood & Blundell (1985). Adv. Biophys. 20, 1-12]. The Ps map was superimposed on the four Hg sites via a sum function and negative densities were eliminated from the resultant map. This map, with appropriate density inserted at Hg sites, closely resembles a map calculated with true phases; the two maps have a correlation coefficient of 0-67. For 2109 reflexions the unweighted mean phase error is 39.9° but with |FoFc| weighting this reduces to 29.5°.
Persistent Identifierhttp://hdl.handle.net/10722/138654
ISSN
2014 Impact Factor: 2.325

 

DC FieldValueLanguage
dc.contributor.authorQuan, Hen_US
dc.contributor.authorWoolfson, MMen_US
dc.date.accessioned2011-09-02T06:49:56Z-
dc.date.available2011-09-02T06:49:56Z-
dc.date.issued1989en_US
dc.identifier.citationActa Crystallographica Section A, 1989, v. 45 n. 11, p. 794-797en_US
dc.identifier.issn0108-7673en_US
dc.identifier.urihttp://hdl.handle.net/10722/138654-
dc.description.abstractThe Ps function derived from anomalous-dispersion data [Okaya, Saito, & Pepinsky (1955). Phys. Rev. 98, 1857-1858] has been tested with observed data for an Hg derivative of a small protein, avian pancreatic polypeptide [Glover, Moss, Tickle, Pitts, Haneef, Wood & Blundell (1985). Adv. Biophys. 20, 1-12]. The Ps map was superimposed on the four Hg sites via a sum function and negative densities were eliminated from the resultant map. This map, with appropriate density inserted at Hg sites, closely resembles a map calculated with true phases; the two maps have a correlation coefficient of 0-67. For 2109 reflexions the unweighted mean phase error is 39.9° but with |FoFc| weighting this reduces to 29.5°.-
dc.publisherThe International Union of Crystallography by Wiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0108-7673&site=1en_US
dc.relation.ispartofActa Crystallographica Section Aen_US
dc.titleApplication of the Ps-function method to macromolecular structure determinationen_US
dc.typeArticleen_US
dc.identifier.emailHao, Q: qhao@hku.hken_US
dc.identifier.authorityHao, Q=rp01332en_US
dc.identifier.doi10.1107/S0108767389007646-
dc.identifier.volume45en_US
dc.identifier.spage794en_US
dc.identifier.epage797en_US
dc.deduplication.noteHao, Qen_US

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