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Crystal structure of human rab1b bound to GDP and BEF3 in complex with the GAP domain of TBC1D20 from homo sapiens
Biology and Chemistry Report
4HLQ
  •   Structure Details   Hide

    Structure Keywords

    Keywords HYDROLASE ACTIVATOR/PROTEIN TRANSPORT
    Text Rab1b, RabGAP, Fluorides, GTPase-Activating Proteins, rab GTP-Binding Proteins, HYDROLASE ACTIVATOR-PROTEIN TRANSPORT complex

    Polymeric Molecules

    Chain A,C,E,G,I
    Description TBC1 domain family member 20 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 34963.4 
    Source Method genetically manipulated  
    Chain B,D,F,H,J
    Description Ras-related protein Rab-1B 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 19752.5 
    Source Method genetically manipulated  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    BEF  BERYLLIUM TRIFLUORIDE ION  Be F3   66.01  View 
    GDP  GUANOSINE-5'-DIPHOSPHATE  C10 H15 N5 O11 P2   443.20  View 
    MG  MAGNESIUM ION  Mg   24.31  View 
    SO4  SULFATE ION  O4 S   96.06  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,C,E,G,I TBC20_HUMAN A8K6I3     
    B,D,F,H,J RAB1B_HUMAN A8K7S1     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,C,E,G,I
    GO ID   Ontology GO Term Definition
    32313   Regulation of Rab Gtpase Activity  Any Process That Modulates the Activity of a Gtpase of the Rab Family. 
    5097   Rab Gtpase Activator Activity  Increases the Rate of GTP Hydrolysis by a Gtpase of the Rab Family. 
    Chain B,D,F,H,J
    GO ID   Ontology GO Term Definition
    6184   GTP Catabolic Process  The Chemical Reactions and Pathways Resulting in the Breakdown of GTP Guanosine Triphosphate. 
    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  Double Layer of Lipid Molecules That Encloses All Cells and in Eukaryotes Many Organelles; May Be a Single or Double Lipid Bilayer; Also Includes Associated Proteins. 
    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,J
    Common Name Human
    Scientific Name Homo sapiens  
    Gene rab1b
    Host Scientific Name Escherichia coli  
    Host Strain Bl21de3
    Host Vector Type Plasmid
    Host Plasmid Name pMAL


    Chain A,C,E,G,I
    Common Name Human
    Scientific Name Homo sapiens  
    Gene tbc1d20, c20orf140
    Host Scientific Name Escherichia coli  
    Host Strain Bl21de3
    Host Vector Type Plasmid
    Host Plasmid Name pOPINM


    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    11 11q12 81876     RAB1B, member RAS oncogene family RAB1B    
    20 20p13 128637     TBC1 domain family, member 20 TBC1D20