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High resolution crystal structure of DNA Apurinic/apyrimidinic (AP) endonuclease IV Nfo from Thermatoga maritima
Biology and Chemistry Report
4HNO
  •   Structure Details   Hide

    Structure Keywords

    Keywords HYDROLASE
    Text endonuclease 4, endodeoxyribonuclease IV, endo IV, nfo, metalloprotein, DNA damage, DNA repair, base excision repair, hydrolase

    Polymeric Molecules

    Chain A
    Description Probable endonuclease 4 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 32551.3 
    Source Method genetically manipulated  
    Entity Name Endodeoxyribonuclease IV, Endonuclease IV 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    EDO  1,2-ETHANEDIOL  C2 H6 O2   62.07  View 
    MG  MAGNESIUM ION  Mg   24.31  View 
    MN  MANGANESE (II) ION  Mn   54.94  View 
    SO4  SULFATE ION  O4 S   96.06  View 
    TRS  2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL  C4 H12 N O3   122.14  View 
    ZN  ZINC ION  Zn   65.41  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A END4_THEMA Q9WYJ7     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    3.1.21.2      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    737   DNA Catabolic Process Endonucleolytic  The Chemical Reactions and Pathways Resulting in the Breakdown of DNA Involving the Hydrolysis of Internal 3' 5' Phosphodiester Bonds in One or Two Strands of Deoxyribonucleotides. 
    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. 
    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. 
    90305   Nucleic Acid Phosphodiester Bond Hydrolysis  The Nucleic Acid Metabolic Process in Which the Phosphodiester Bonds Between Nucleotides Are Cleaved by Hydrolysis. 
    3677   DNA Binding  Any Molecular Function by Which a Gene Product Interacts Selectively and Non Covalently with DNA (deoxyribonucleic Acid). 
    4518   Nuclease Activity  Catalysis of the Hydrolysis of Ester Linkages Within Nucleic Acids. 
    4519   Endonuclease Activity  Catalysis of the Hydrolysis of Ester Linkages Within Nucleic Acids by Creating Internal Breaks. 
    8270   Zinc Ion Binding  Interacting Selectively and Non Covalently with Zinc (zn) Ions. 
    8833   Deoxyribonuclease Iv (phage T4 Induced) Activity  Catalysis of the Endonucleolytic Cleavage to 5' Phosphooligonucleotide End Products. 
    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. 
    46872   Metal Ion Binding  Interacting Selectively and Non Covalently with Any Metal Ion. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A
    Scientific Name Thermotoga maritima  
    Strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099
    Gene nfo, tm_0362
    Host Scientific Name Escherichia coli  


    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    - - 897321     deoxyribonuclease IV TM0362