title: Crystal structure of a protein associated with cell division from Mycoplasma pneumoniae (GI: 13508053): a novel fold with a conserved sequence motif.
abstract: UPF0040 is a family of proteins implicated in a cellular function of bacteria cell division. There is no structure information available on protein of this family. We have determined the crystal structure of a protein from Mycoplasma pneumoniae that belongs to this family using X-ray crystallography. Structural homology search reveals that this protein has a novel fold with no significant similarity to any proteins of known three-dimensional structure. The crystal structures of the protein in three different crystal forms reveal that the protein exists as a ring of octamer. The conserved protein residues, including a highly conserved DXXXR motif, are examined on the basis of crystal structure.
authors.affiliation: Department of Chemistry, University of California, Berkeley, California 94720, USA.
authors.forename: Shengfeng
authors.initials: S
authors.lastname: Chen
authors.forename: Jaru
authors.initials: J
authors.lastname: Jancrick
authors.forename: Hisao
authors.initials: H
authors.lastname: Yokota
authors.forename: Rosalind
authors.initials: R
authors.lastname: Kim
authors.forename: Sung-Hou
authors.initials: SH
authors.lastname: Kim
mesh_terms: D020816:Amino Acid Motifs; D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000737:chemistry* / Q000502:physiology; D002455:Cell Division; D017124:Conserved Sequence; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D008969:Molecular Sequence Data; D009177:Mycoplasma pneumoniae / Q000166:cytology; D017510:Protein Folding; D016415:Sequence Alignment; D020539:Sequence Analysis, Protein
chemical_list: D001426:Bacterial Proteins