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CRYSTAL STRUCTURE OF THE CHIP U-BOX E3 UBIQUITIN LIGASE
Biology and Chemistry Report
2C2L
  •   Structure Details   Hide

    Structure Keywords

    Keywords CHAPERONE
    Text CHAPERONE, E3 LIGASE, UBIQUITINYLATION, TPR, HEAT-SHOCK PROTEIN COMPLEX

    Polymeric Molecules

    Chain A,B,C,D
    Description CARBOXY TERMINUS OF HSP70-INTERACTING PROTEIN 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 32729.2 
    Source Method genetically manipulated  
    Entity Name CHIP 
    Chain E,F,G,H
    Description HSP90 
    Fragment C-TERMINAL PEPTIDE 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 1082.1 
    Source Method synthetic  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    NI  NICKEL (II) ION  Ni   58.69  View 
    SO4  SULFATE ION  O4 S   96.06  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B,C,D CHIP_MOUSE Q9WUD1     
    E,F,G,H HS90A_HUMAN P07900     

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B C D  6.3.2      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B,C,D
    GO ID   Ontology GO Term Definition
    209   Protein Polyubiquitination  Addition of Multiple Ubiquitin Groups to a Protein Forming a Ubiquitin Chain. 
    6281   DNA Repair  The Process of Restoring DNA After Damage. Genomes Are Subject to Damage by Chemical and Physical Agents in the Environment (e.g. Uv and Ionizing Radiations Chemical Mutagens Fungal and Bacterial Toxins Etc.) and by Free Radicals or Alkylating Agents Endogenously Generated in Metabolism. DNA Is Also Damaged Because of Errors During Its Replication. a Variety of Different DNA Repair Pathways Have Been Reported That Include Direct Reversal Base Excision Repair Nucleotide Excision Repair Photoreactivation Bypass Double Strand Break Repair Pathway and Mismatch Repair Pathway. 
    6457   Protein Folding  The Process of Assisting in the Covalent and Noncovalent Assembly of Single Chain Polypeptides or Multisubunit Complexes Into the Correct Tertiary Structure. 
    6511   Ubiquitin Dependent Protein Catabolic Process  The Chemical Reactions and Pathways Resulting in the Breakdown of a Protein or Peptide by Hydrolysis of Its Peptide Bonds Initiated by the Covalent Attachment of a Ubiquitin Group or Multiple Ubiquitin Groups to the Protein. 
    6515   Misfolded or Incompletely Synthesized Protein Catabolic Process  The Chemical Reactions and Pathways Resulting in the Breakdown of Misfolded or Attenuated Proteins. 
    6974   Cellular Response to DNA Damage Stimulus  Any Process That Results in a Change in State or Activity of a Cell (in Terms of Movement Secretion Enzyme Production Gene Expression Etc.) As a Result of a Stimulus Indicating Damage to Its DNA From Environmental Insults or Errors During Metabolism. 
    16567   Protein Ubiquitination  The Process in Which One or More Ubiquitin Groups Are Added to a Protein. 
    30579   Ubiquitin Dependent Smad Protein Catabolic Process  The Chemical Reactions and Pathways Resulting in the Breakdown of Smad Signaling Proteins by Ubiquitination and Targeting to the Proteasome. 
    30968   Endoplasmic Reticulum Unfolded Protein Response  The Series of Molecular Signals Generated As a Consequence of the Presence of Unfolded Proteins in the Endoplasmic Reticulum (er) or Other Er Related Stress; Results in Changes in the Regulation of Transcription and Translation. 
    31398   Positive Regulation of Protein Ubiquitination  Any Process That Activates or Increases the Frequency Rate or Extent of the Addition of Ubiquitin Groups to a Protein. 
    31943   Regulation of Glucocorticoid Metabolic Process  Any Process That Modulates the Frequency Rate or Extent of the Chemical Reactions and Pathways Involving Glucocorticoids. 
    32091   Negative Regulation of Protein Binding  Any Process That Stops Prevents or Reduces the Frequency Rate or Extent of Protein Binding. 
    32436   Positive Regulation of Proteasomal Ubiquitin Dependent Protein Catabolic Process  Any Process That Activates or Increases the Frequency Rate or Extent of the Breakdown of a Protein or Peptide by Hydrolysis of Its Peptide Bonds Initiated by the Covalent Attachment of Ubiquitin and Mediated by the Proteasome. 
    36503   Erad Pathway  The Series of Steps Necessary to Target Endoplasmic Reticulum (er) Resident Proteins For Degradation by the Cytoplasmic Proteasome. Begins with Recognition of the Er Resident Protein Includes Retrotranslocation (dislocation) of the Protein From the Er to the Cytosol Protein Modifications Necessary For Correct Substrate Transfer (e.g. Ubiquitination) Transport of the Protein to the Proteasome and Ends with Degradation of the Protein by the Cytoplasmic Proteasome. 
    42787   Protein Ubiquitination Involved in Ubiquitin Dependent Protein Catabolic Process  The Process in Which a Ubiquitin Group or Multiple Groups Are Covalently Attached to the Target Protein Thereby Initiating the Degradation of That Protein. 
    43161   Proteasome Mediated Ubiquitin Dependent Protein Catabolic Process  The Chemical Reactions and Pathways Resulting in the Breakdown of a Protein or Peptide by Hydrolysis of Its Peptide Bonds Initiated by the Covalent Attachment of Ubiquitin and Mediated by the Proteasome. 
    51443   Positive Regulation of Ubiquitin Protein Transferase Activity  Any Process That Activates Maintains or Increases the Rate of Ubiquitin Transferase Activity. 
    51604   Protein Maturation  Any Process Leading to the Attainment of the Full Functional Capacity of a Protein. 
    51865   Protein Autoubiquitination  The Ubiquitination by a Protein of One or More of Its Own Amino Acid Residues or Residues On an Identical Protein. Ubiquitination Occurs On the Lysine Residue by Formation of an Isopeptide Crosslink. 
    70534   Protein K63 Linked Ubiquitination  A Protein Ubiquitination Process in Which a Polymer of Ubiquitin Formed by Linkages Between Lysine Residues At Position 63 of the Ubiquitin Monomers Is Added to a Protein. K63 Linked Ubiquitination Does Not Target the Substrate Protein For Degradation But Is Involved in Several Pathways Notably As a Signal to Promote Error Free DNA Postreplication Repair. 
    71218   Cellular Response to Misfolded Protein  Any Process That Results in a Change in State or Activity of a Cell (in Terms of Movement Secretion Enzyme Production Gene Expression Etc.) As a Result of a Misfolded Protein Stimulus. 
    90035   Positive Regulation of Chaperone Mediated Protein Complex Assembly  Any Process That Increases the Frequency Rate or Extent of Chaperone Mediated Protein Complex Assembly. Chaperone Mediated Protein Complex Assembly Is the Aggregation Arrangement and Bonding Together of a Set of Components to Form a Protein Complex Mediated by Chaperone Molecules That Do Not Form Part of the Finished Complex. 
    151   Ubiquitin Ligase Complex  A Protein Complex That Includes a Ubiquitin Protein Ligase and Other Proteins That May Confer Substrate Specificity On the Complex. 
    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. 
    5654   Nucleoplasm  That Part of the Nuclear Content Other Than the Chromosomes or the Nucleolus. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    5783   Endoplasmic Reticulum  The Irregular Network of Unit Membranes Visible Only by Electron Microscopy That Occurs in the Cytoplasm of Many Eukaryotic Cells. the Membranes Form a Complex Meshwork of Tubular Channels Which Are Often Expanded Into Slitlike Cavities Called Cisternae. the Er Takes Two Forms Rough (or Granular) with Ribosomes Adhering to the Outer Surface and Smooth (with No Ribosomes Attached). 
    5886   Plasma Membrane  The Membrane Surrounding a Cell That Separates the Cell From Its External Environment. It Consists of a Phospholipid Bilayer and Associated Proteins. 
    31371   Ubiquitin Conjugating Enzyme Complex  Any Complex That Possesses Ubiquitin Conjugating Enzyme Activity. 
    42405   Nuclear Inclusion Body  An Intranuclear Focus At Which Aggregated Proteins Have Been Sequestered. 
    45111   Intermediate Filament Cytoskeleton  Cytoskeletal Structure Made From Intermediate Filaments Typically Organized in the Cytosol As an Extended System That Stretches From the Nuclear Envelope to the Plasma Membrane. Some Intermediate Filaments Run Parallel to the Cell Surface While Others Traverse the Cytosol; Together They Form an Internal Framework That Helps Support the Shape and Resilience of the Cell. 
    70062   Extracellular Exosome  A Membrane Bounded Vesicle That Is Released Into the Extracellular Region by Fusion of the Limiting Endosomal Membrane of a Multivesicular Body with the Plasma Membrane. Extracellular Exosomes Also Simply Called Exosomes Have a Diameter of About 40 100 Nm. 
    1664   G Protein Coupled Receptor Binding  Interacting Selectively and Non Covalently with a G Protein Coupled Receptor. 
    4842   Ubiquitin Protein Transferase Activity  Catalysis of the Transfer of Ubiquitin From One Protein to Another Via the Reaction X Ub + Y > Y Ub + X Where Both X Ub and Y Ub Are Covalent Linkages. 
    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). 
    16874   Ligase Activity  Catalysis of the Joining of Two Substances or Two Groups Within a Single Molecule with the Concomitant Hydrolysis of the Diphosphate Bond in ATP or a Similar Triphosphate. 
    19899   Enzyme Binding  Interacting Selectively and Non Covalently with Any Enzyme. 
    19900   Kinase Binding  Interacting Selectively and Non Covalently with a Kinase Any Enzyme That Catalyzes the Transfer of a Phosphate Group. 
    30544   Hsp70 Protein Binding  Interacting Selectively and Non Covalently with Hsp70 Proteins Any of a Group of Heat Shock Proteins Around 70kda in Size. 
    30674   Protein Binding Bridging  The Binding Activity of a Molecule That Brings Together Two or More Protein Molecules or a Protein and Another Macromolecule or Complex Through a Selective Non Covalent Often Stoichiometric Interaction Permitting Those Molecules to Function in a Coordinated Way. 
    30911   Tpr Domain Binding  Interacting Selectively and Non Covalently with a Tetratricopeptide Repeat (tpr) Domain of a Protein the Consensus Sequence of Which Is Defined by a Pattern of Small and Large Hydrophobic Amino Acids and a Structure Composed of Helices. 
    31072   Heat Shock Protein Binding  Interacting Selectively and Non Covalently with a Heat Shock Protein Any Protein Synthesized or Activated in Response to Heat Shock. 
    31625   Ubiquitin Protein Ligase Binding  Interacting Selectively and Non Covalently with a Ubiquitin Protein Ligase Enzyme Any of the E3 Proteins. 
    34450   Ubiquitin Ubiquitin Ligase Activity  Isoenergetic Transfer of Ubiquitin From One Protein to an Existing Ubiquitin Chain Via the Reaction X Ubiquitin + Y Ubiquitin > Y Ubiquitin Ubiquitin + X Where Both the X Ubiquitin and Y Ubiquitin Ubiquitin Linkages Are Thioester Bonds Between the C Terminal Glycine of Ubiquitin and a Sulfhydryl Side Group of a Cysteine Residue. 
    42803   Protein Homodimerization Activity  Interacting Selectively and Non Covalently with an Identical Protein to Form a Homodimer. 
    46332   Smad Binding  Interacting Selectively and Non Covalently with a Smad Signaling Protein. 
    51787   Misfolded Protein Binding  Interacting Selectively and Non Covalently with a Misfolded Protein. 
    51879   Hsp90 Protein Binding  Interacting Selectively and Non Covalently with Hsp90 Proteins Any of a Group of Heat Shock Proteins Around 90kda in Size. 
    61630   Ubiquitin Protein Ligase Activity  Catalysis of the Transfer of Ubiquitin to a Substrate Protein Via the Reaction X Ubiquitin + S > X + S Ubiquitin Where X Is Either an E2 or E3 Enzyme the X Ubiquitin Linkage Is a Thioester Bond and the S Ubiquitin Linkage Is an Isopeptide Bond Between the C Terminal Glycine of Ubiquitin and the Epsilon Amino Group of Lysine Residues in the Substrate. Note That This May Include the Extension of Ubiquitin Chains. 
    1904264   Ubiquitin Protein Ligase Activity Involved in Erad Pathway  Any Ubiquitin Protein Ligase Activity That Is Involved in the Erad Pathway (the Targeting of Endoplasmic Reticulum (er) Resident Proteins For Degradation by the Cytoplasmic Proteasome). 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B,C,D
    Common Name Mouse
    Scientific Name Mus musculus  
    Host Scientific Name Escherichia coli