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SAGA: rapid automatic mainchain NMR assignment for large proteins.

Authors
  • Crippen, Gordon M
  • Rousaki, Aikaterini
  • Revington, Matthew
  • Zhang, Yongbo
  • Zuiderweg, Erik R P
Type
Published Article
Journal
Journal of Biomolecular NMR
Publisher
Springer-Verlag
Publication Date
Apr 01, 2010
Volume
46
Issue
4
Pages
281–298
Identifiers
DOI: 10.1007/s10858-010-9403-2
PMID: 20232231
Source
Medline
License
Unknown

Abstract

Here we describe a new algorithm for automatically determining the mainchain sequential assignment of NMR spectra for proteins. Using only the customary triple resonance experiments, assignments can be quickly found for not only small proteins having rather complete data, but also for large proteins, even when only half the residues can be assigned. The result of the calculation is not the single best assignment according to some criterion, but rather a large number of satisfactory assignments that are summarized in such a way as to help the user identify portions of the sequence that are assigned with confidence, vs. other portions where the assignment has some correlated alternatives. Thus very imperfect initial data can be used to suggest future experiments.

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