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Structure of human regulator of G protein signaling 2 (RGS2) in complex with murine Galpha-q(R183C)
Biology and Chemistry Report
4EKD
  •   Structure Details   Hide

    Structure Keywords

    Keywords SIGNALING PROTEIN/INHIBITOR
    Text GTP-binding, Regulator of G protein signaling, homology domain, GTPase activation, SIGNALING PROTEIN-INHIBITOR complex

    Polymeric Molecules

    Chain A
    Description Guanine nucleotide-binding protein G(q) subunit alpha 
    Fragment UNP residues 18-359 
    Mutation E125D, N126V, Y128D, V129Y, D130A, R183C 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 40634.6 
    Source Method genetically manipulated  
    Entity Name Guanine nucleotide-binding protein alpha-q 
    Chain B
    Description Regulator of G-protein signaling 2 
    Fragment RGS domain, UNP residues 72-203 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 15872.0 
    Source Method genetically manipulated  
    Entity Name RGS2, Cell growth-inhibiting gene 31 protein, G0/G1 switch regulatory protein 8 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    ALF  TETRAFLUOROALUMINATE ION  Al F4   102.98  View 
    CL  CHLORIDE ION  Cl   35.45  View 
    CO  COBALT (II) ION  Co   58.93  View 
    GDP  GUANOSINE-5'-DIPHOSPHATE  C10 H15 N5 O11 P2   443.20  View 
    MES  2-(N-MORPHOLINO)-ETHANESULFONIC ACID  C6 H13 N O4 S   195.24  View 
    MG  MAGNESIUM ION  Mg   24.31  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A GNAQ_MOUSE P21279     
    B RGS2_HUMAN P41220     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    3.6.5.1      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    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. 
    5634   Nucleus  A Membrane Bounded Organelle of Eukaryotic Cells in Which Chromosomes Are Housed and Replicated. in Most Cells the Nucleus Contains All of the Cell's Chromosomes Except the Organellar Chromosomes and Is the Site of RNA Synthesis and Processing. in Some Species or in Specialized Cell Types RNA Metabolism or DNA Replication May Be Absent. 
    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. 
    31965   Nuclear Membrane  Either of the Lipid Bilayers That Surround the Nucleus and Form the Nuclear Envelope; Excludes the Intermembrane Space. 
    166   Nucleotide Binding  Interacting Selectively and Non Covalently with a Nucleotide Any Compound Consisting of a Nucleoside That Is Esterified with (ortho)phosphate or an Oligophosphate At Any Hydroxyl Group On the Ribose or Deoxyribose. 
    4871   Signal Transducer Activity  Conveys a Signal Across a Cell to Trigger a Change in Cell Function or State. a Signal Is a Physical Entity or Change in State That Is Used to Transfer Information in Order to Trigger a Response. 
    5515   Protein Binding  Interacting Selectively and Non Covalently with Any Protein or Protein Complex (a Complex of Two or More Proteins That May Include Other Nonprotein Molecules). 
    5525   GTP Binding  Interacting Selectively and Non Covalently with GTP Guanosine Triphosphate. 
    46872   Metal Ion Binding  Interacting Selectively and Non Covalently with Any Metal Ion. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain B
    Common Name Human
    Scientific Name Homo sapiens  
    Gene rgs2, g0s8, gig31
    Host Scientific Name Escherichia coli  


    Chain A
    Common Name Mouse
    Scientific Name Mus musculus  
    Gene gnaq
    Host Scientific Name Trichoplusia ni  


    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    1 1q31 5997     regulator of G-protein signaling 2 RGS2    
    19 19 A|19 11.01 cM 14682     guanine nucleotide binding protein, alpha q polypeptide GNAQ