Crystallographic molecular replacement using an in silico-generated search model of SARS-CoV-2 ORF8.

ABSTRACT: The majority of crystal structures are determined by the method of molecular replacement (MR). The range of application of MR is limited mainly by the need for an accurate search model. In most cases, pre-existing experimentally determined structures are used as search models. In favorable cases, ab initio predicted structures have yielded search models adequate for molecular replacement. The ORF8 protein of SARS-CoV-2 represents a challenging case for MR using an ab initio prediction because ORF8 has an all β-sheet fold and few orthologs. We previously determined experimentally the structure of ORF8 using the single anomalous dispersion (SAD) phasing method, having been unable to find an MR solution to the crystallographic phase problem. Following a report of an accurate pre

SUBMITTER: Flower TG 

PROVIDER: S-EPMC7805452 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature