title: Structural studies of the Msx-1 homeodomain-DNA complex I.
abstract: Crystals of the Msx-1 homeodomain-DNA complex have been obtained by hanging-drop vapor diffusion at 293 K in 12% PEG 4000 and 0.1 M sodium acetate pH 4.6. The homeodomain consists of 60 amino acids and is the DNA-binding domain. The DNA in the complex was 16 base pairs with the sequence 5'-TGTCACTAATTGAAGG-3', containing an overhang T at each end. The crystals diffract to 2.15 A (99.8% completeness) using cryogenic (123 K) conditions. The crystals belong to the orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 33.66, b = 60.96, c = 83.37 A. The structure will illuminate the details of Msx-1-DNA binding specificity and clarify its role in transcriptional regulation. Mutations in Msx-1 cause craniofacial deformities in mice.
authors.affiliation: Michigan State University Chemistry Department, East Lansing, MI 48824, USA.
authors.forename: S
authors.initials: S
authors.lastname: DeWees
authors.forename: J H
authors.initials: JH
authors.lastname: Geiger
mesh_terms: D000818:Animals; D001483:Base Sequence; D019465:Craniofacial Abnormalities / Q000235:genetics; D018360:Crystallography, X-Ray; D004247:DNA / Q000737:chemistry* / Q000235:genetics; D018398:Homeodomain Proteins / Q000737:chemistry* / Q000235:genetics; D051957:MSX1 Transcription Factor; D046911:Macromolecular Substances; D051379:Mice; D009154:Mutation; D014157:Transcription Factors
chemical_list: D018398:Homeodomain Proteins; D051957:MSX1 Transcription Factor; D046911:Macromolecular Substances; D014157:Transcription Factors; D004247:DNA