title: Sigma domain structure: one down, one to go.
abstract: The recent publication of the 2.6 A crystal structure of a portion of sigma70 provides insight into the role of sigma during transcription initiation. This high resolution picture unveils novel questions.
authors.affiliation: Department of Microbiology, University of California, San Francisco, 94143-0512, USA.
authors.forename: C L
authors.initials: CL
authors.lastname: Chan
authors.forename: M A
authors.initials: MA
authors.lastname: Lonetto
authors.forename: C A
authors.initials: CA
authors.lastname: Gross
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry*; D003461:Crystallography; D004268:DNA-Binding Proteins / Q000737:chemistry*; D012321:DNA-Directed RNA Polymerases / Q000737:chemistry*; D004926:Escherichia coli / Q000737:chemistry; D008958:Models, Molecular; D010446:Peptide Fragments / Q000737:chemistry; D011487:Protein Conformation; D012808:Sigma Factor / Q000737:chemistry*; D014158:Transcription, Genetic
chemical_list: D001426:Bacterial Proteins; D004268:DNA-Binding Proteins; D010446:Peptide Fragments; D012808:Sigma Factor; C081775:RNA polymerase sigma 70; D012321:DNA-Directed RNA Polymerases