Format

Send to

Choose Destination
Acta Crystallogr A. 1992 Jul 1;48 ( Pt 4):430-42.

The structure determination of Sindbis virus core protein using isomorphous replacement and molecular replacement averaging between two crystal forms.

Author information

1
Department of Biological Sciences, Purdue University, West Lafayette, IN 47907.

Abstract

The structure of Sindbis virus core protein has been determined by a combination of multiple isomorphous replacement and molecular replacement averaging techniques. The multiple isomorphous replacement phase determinations were made for two crystal forms (P2(1) and P4(3)2(1)2) of the core protein. The real-space molecular replacement averaging was subsequently carried out between two copies of the protein per asymmetric unit in the monoclinic form and one copy in the tetragonal form. This greatly improved the quality of the electron density maps. The Sindbis virus core protein polypeptide could be traced and related to the known amino acid sequence. The averaging procedure between different crystal forms, as described in this paper, should be generally applicable to other systems.

PMID:
1418825
[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center