An Information Portal to 110790 Biological Macromolecular Structures

Crystal structure of the Legionella pneumophila GAP domain of LepB in complex with Rab1b bound to GDP and BeF3
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Text GAP, RabGAP, hydrolase activator, Rab1b, lpg2490, GTPase-activating proteins, hydrolysis, Rab1 hydrolase, GTP hydrolase, PROTEIN TRANSPORT-HYDROLASE complex

    Polymeric Molecules

    Chain A,C,E,G
    Description Ras-related protein Rab-1B 
    Fragment UNP residues 3-174 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 20482.4 
    Source Method genetically manipulated  
    Chain B,D,F,H
    Description LepB 
    Fragment GAP domain (UNP residues 317-618) 
    Mutation K457A, E458A, K460A 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 34132.2 
    Source Method genetically manipulated  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    GDP  GUANOSINE-5'-DIPHOSPHATE  C10 H15 N5 O11 P2   443.20  View 
    MG  MAGNESIUM ION  Mg   24.31  View 
    PEG  DI(HYDROXYETHYL)ETHER  C4 H10 O3   106.12  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,C,E,G RAB1B_HUMAN Q9H0U4     
    B,D,F,H Q5ZSM7_LEGPH Q5ZSM7     

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,C,E,G
    GO ID   Ontology GO Term Definition
    6886   Intracellular Protein Transport  The Directed Movement of Proteins in a Cell Including the Movement of Proteins Between Specific Compartments or Structures Within a Cell Such As Organelles of a Eukaryotic Cell. 
    6913   Nucleocytoplasmic Transport  The Directed Movement of Molecules Between the Nucleus and the Cytoplasm. 
    7165   Signal Transduction  The Cellular Process in Which a Signal Is Conveyed to Trigger a Change in the Activity or State of a Cell. Signal Transduction Begins with Reception of a Signal (e.g. a Ligand Binding to a Receptor or Receptor Activation by a Stimulus Such As Light) or For Signal Transduction in the Absence of Ligand Signal Withdrawal or the Activity of a Constitutively Active Receptor. Signal Transduction Ends with Regulation of a Downstream Cellular Process E.g. Regulation of Transcription or Regulation of a Metabolic Process. Signal Transduction Covers Signaling From Receptors Located On the Surface of the Cell and Signaling Via Molecules Located Within the Cell. For Signaling Between Cells Signal Transduction Is Restricted to Events At and Within the Receiving Cell. 
    7264   Small Gtpase Mediated Signal Transduction  Any Series of Molecular Signals in Which a Small Monomeric Gtpase Relays One or More of the Signals. 
    15031   Protein Transport  The Directed Movement of Proteins Into Out of or Within a Cell or Between Cells by Means of Some Agent Such As a Transporter or Pore. 
    5622   Intracellular  The Living Contents of a Cell; the Matter Contained Within (but Not Including) the Plasma Membrane Usually Taken to Exclude Large Vacuoles and Masses of Secretory or Ingested Material. in Eukaryotes It Includes the Nucleus and Cytoplasm. 
    16020   Membrane  A Lipid Bilayer Along with All the Proteins and Protein Complexes Embedded in It an Attached to It. 
    3924   Gtpase Activity  Catalysis of the Reaction: GTP + H2o = GDP + Phosphate. 
    5525   GTP Binding  Interacting Selectively and Non Covalently with GTP Guanosine Triphosphate. 

  •   Gene Details   Hide

    Genetic Source

    Chain B,D,F,H
    Scientific Name Legionella pneumophila subsp. pneumophila  
    Strain PHILADELPHIA 1 / ATCC 33152 / DSM 7513
    Gene lepb, lpg2490
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3)
    Host Vector Type Plasmid
    Host Plasmid Name pOPINM

    Chain A,C,E,G
    Common Name Human
    Scientific Name Homo sapiens  
    Gene rab1b
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3)
    Host Vector Type Plasmid
    Host Plasmid Name pMAL

    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    11 11q12 81876     RAB1B, member RAS oncogene family RAB1B    
    - - 19834055     hypothetical protein LEPB