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Crystal Structure of Dipeptidyl Peptidase IV (DPP4, DPP-IV, CD26) in Complex with 11A19 Fab
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Keywords HYDROLASE/Immune System, INHIBITOR
    Text hydrolase, HYDROLASE-Immune System, INHIBITOR complex

    Polymeric Molecules

    Chain A,B
    Description Dipeptidyl peptidase 4 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 84338.3 
    Source Method genetically manipulated  
    Entity Name Bile canaliculus domain-specific membrane glycoprotein, Dipeptidyl peptidase IV, DPP IV, GP110 glycoprotein, T-cell activation antigen CD26, Dipeptidyl peptidase 4 membrane form, Dipeptidyl peptidase IV membrane form, Dipeptidyl peptidase 4 soluble form, Dipeptidyl peptidase IV soluble form, Dipeptidyl peptidase 4 60 kDa soluble form, Dipeptidyl peptidase IV 60 kDa soluble form 
    Chain C,L
    Description 11A19 Fab light chain 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 22865.4 
    Source Method natural source  
    Chain D,H
    Description 11A19 Fab heavy chain 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 23307.3 
    Source Method natural source  

  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B DPP4_RAT P14740     

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    2709   Regulation of T Cell Mediated Immunity  Any Process That Modulates the Frequency Rate or Extent of T Cell Mediated Immunity. 
    6508   Proteolysis  The Hydrolysis of Proteins Into Smaller Polypeptides And/or Amino Acids by Cleavage of Their Peptide Bonds. 
    7155   Cell Adhesion  The Attachment of a Cell Either to Another Cell or to an Underlying Substrate Such As the Extracellular Matrix Via Cell Adhesion Molecules. 
    8284   Positive Regulation of Cell Proliferation  Any Process That Activates or Increases the Rate or Extent of Cell Proliferation. 
    10716   Negative Regulation of Extracellular Matrix Disassembly  Any Process That Decreases the Rate Frequency or Extent of Extracellular Matrix Disassembly. Extracellular Matrix Disassembly Is a Process That Results in the Breakdown of the Extracellular Matrix. 
    31295   T Cell Costimulation  The Process of Providing Via Surface Bound Receptor Ligand Pairs a Second Antigen Independent Signal in Addition to That Provided by the T Cell Receptor to Augment T Cell Activation. 
    43542   Endothelial Cell Migration  The Orderly Movement of an Endothelial Cell Into the Extracellular Matrix to Form an Endothelium. 
    51234   Establishment of Localization  The Directed Movement of a Cell Substance or Cellular Entity Such As a Protein Complex or Organelle to a Specific Location. 
    5576   Extracellular Region  The Space External to the Outermost Structure of a Cell. For Cells Without External Protective or External Encapsulating Structures This Refers to Space Outside of the Plasma Membrane. This Term Covers the Host Cell Environment Outside an Intracellular Parasite. 
    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). 
    5794   Golgi Apparatus  A Compound Membranous Cytoplasmic Organelle of Eukaryotic Cells Consisting of Flattened Ribosome Free Vesicles Arranged in a More or Less Regular Stack. the Golgi Apparatus Differs From the Endoplasmic Reticulum in Often Having Slightly Thicker Membranes Appearing in Sections As a Characteristic Shallow Semicircle So That the Convex Side (cis or Entry Face) Abuts the Endoplasmic Reticulum Secretory Vesicles Emerging From the Concave Side (trans or Exit Face). in Vertebrate Cells There Is Usually One Such Organelle While in Invertebrates and Plants Where They Are Known Usually As Dictyosomes There May Be Several Scattered in the Cytoplasm. the Golgi Apparatus Processes Proteins Produced On the Ribosomes of the Rough Endoplasmic Reticulum; Such Processing Includes Modification of the Core Oligosaccharides of Glycoproteins and the Sorting and Packaging of Proteins For Transport to a Variety of Cellular Locations. Three Different Regions of the Golgi Are Now Recognized Both in Terms of Structure and Function: Cis in the Vicinity of the Cis Face Trans in the Vicinity of the Trans Face and Medial Lying Between the Cis and Trans Regions. 
    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. 
    9986   Cell Surface  The External Part of the Cell Wall And/or Plasma Membrane. 
    16020   Membrane  A Lipid Bilayer Along with All the Proteins and Protein Complexes Embedded in It an Attached to It. 
    16021   Integral Component of Membrane  The Component of a Membrane Consisting of Gene Products and Protein Complexes That Have Some Part That Penetrates At Least One Leaflet of the Membrane Bilayer. This Component Includes Gene Products That Are Buried in the Bilayer with No Exposure Outside the Bilayer. 
    16324   Apical Plasma Membrane  The Region of the Plasma Membrane Located At the Apical End of the Cell. 
    30027   Lamellipodium  A Thin Sheetlike Process Extended by the Leading Edge of a Crawling Fibroblast; Contains a Dense Meshwork of Actin Filaments. 
    30054   Cell Junction  A Cellular Component That Forms a Specialized Region of Connection Between Two or More Cells or Between a Cell and the Extracellular Matrix. At a Cell Junction Anchoring Proteins Extend Through the Plasma Membrane to Link Cytoskeletal Proteins in One Cell to Cytoskeletal Proteins in Neighboring Cells or to Proteins in the Extracellular Matrix. 
    30139   Endocytic Vesicle  A Membrane Bounded Intracellular Vesicle Formed by Invagination of the Plasma Membrane Around an Extracellular Substance. Endocytic Vesicles Fuse with Early Endosomes to Deliver the Cargo For Further Sorting. 
    31258   Lamellipodium Membrane  The Portion of the Plasma Membrane Surrounding a Lamellipodium. 
    42995   Cell Projection  A Prolongation or Process Extending From a Cell E.g. a Flagellum or Axon. 
    45121   Membrane Raft  Any of the Small (10 200 Nm) Heterogeneous Highly Dynamic Sterol and Sphingolipid Enriched Membrane Domains That Compartmentalize Cellular Processes. Small Rafts Can Sometimes Be Stabilized to Form Larger Platforms Through Protein Protein and Protein Lipid Interactions. 
    71438   Invadopodium Membrane  The Portion of the Plasma Membrane Surrounding an Invadopodium. 
    2020   Protease Binding  Interacting Selectively and Non Covalently with Any Protease or Peptidase. 
    4177   Aminopeptidase Activity  Catalysis of the Hydrolysis of N Terminal Amino Acid Residues From in a Polypeptide Chain. 
    5102   Receptor Binding  Interacting Selectively and Non Covalently with One or More Specific Sites On a Receptor Molecule a Macromolecule That Undergoes Combination with a Hormone Neurotransmitter Drug or Intracellular Messenger to Initiate a Change in Cell Function. 
    5518   Collagen Binding  Interacting Selectively and Non Covalently with Collagen a Group of Fibrous Proteins of Very High Tensile Strength That Form the Main Component of Connective Tissue in Animals. Collagen Is Highly Enriched in Glycine (some Regions Are 33% Glycine) and Proline Occurring Predominantly As 3 Hydroxyproline (about 20%). 
    8233   Peptidase Activity  Catalysis of the Hydrolysis of a Peptide Bond. a Peptide Bond Is a Covalent Bond Formed When the Carbon Atom From the Carboxyl Group of One Amino Acid Shares Electrons with the Nitrogen Atom From the Amino Group of a Second Amino Acid. 
    8236   Serine Type Peptidase Activity  Catalysis of the Hydrolysis of Peptide Bonds in a Polypeptide Chain by a Catalytic Mechanism That Involves a Catalytic Triad Consisting of a Serine Nucleophile That Is Activated by a Proton Relay Involving an Acidic Residue (e.g. Aspartate or Glutamate) and a Basic Residue (usually Histidine). 
    8239   Dipeptidyl Peptidase Activity  Catalysis of the Hydrolysis of N Terminal Dipeptides From a Polypeptide Chain. 
    16787   Hydrolase Activity  Catalysis of the Hydrolysis of Various Bonds E.g. C O C N C C Phosphoric Anhydride Bonds Etc. Hydrolase Is the Systematic Name For Any Enzyme of EC Class 3. 
    42277   Peptide Binding  Interacting Selectively and Non Covalently with Peptides Any of a Group of Organic Compounds Comprising Two or More Amino Acids Linked by Peptide Bonds. 
    42803   Protein Homodimerization Activity  Interacting Selectively and Non Covalently with an Identical Protein to Form a Homodimer. 

  •   Gene Details   Hide

    Natural Source

    Chain D,H
    Common Name Mouse
    Scientific Name Mus musculus  
    Chain C,L
    Common Name Mouse
    Scientific Name Mus musculus  

    Genetic Source

    Chain A,B
    Common Name Brown Rat Rat Rats
    Scientific Name Rattus norvegicus  
    Gene dpp4, cd26
    Host Scientific Name Homo sapiens  
    Host Strain Hek293 6e
    Host Vector Type Plasmid

    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    3 3q21 25253     dipeptidylpeptidase 4 DPP4