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E. coli Aspartate Transcarbamoylase complexed with CTP
Biology and Chemistry Report
4FYW
  •   Structure Details   Hide

    Structure Keywords

    Keywords TRANSFERASE
    Text pyrimidine nucleotide biosynthesis, feedback inhibition, allostery, TRANSFERASE

    Polymeric Molecules

    Chain A,C
    Description Aspartate carbamoyltransferase catalytic chain 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 34337.4 
    Source Method natural source  
    Entity Name Aspartate transcarbamylase, ATCase 
    Chain B,D
    Description Aspartate carbamoyltransferase regulatory chain 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 17143.8 
    Source Method natural source  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    CTP  CYTIDINE-5'-TRIPHOSPHATE  C9 H16 N3 O14 P3   483.16  View 
    ZN  ZINC ION  Zn   65.41  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,C PYRB_ECOLI P00479     
    B,D PYRI_ECOLI P00478     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A C  2.1.3.2      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,C
    GO ID   Ontology GO Term Definition
    6207   'de Novo' Pyrimidine Nucleobase Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Pyrimidine Nucleobases 1 3 Diazine Organic Nitrogenous Bases Beginning with the Synthesis of a Pyrimidine Ring From Simpler Precursors. 
    6221   Pyrimidine Nucleotide Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of a Pyrimidine Nucleotide a Compound Consisting of Nucleoside (a Pyrimidine Base Linked to a Deoxyribose or Ribose Sugar) Esterified with a Phosphate Group At Either the 3' or 5' Hydroxyl Group of the Sugar. 
    6520   Cellular Amino Acid Metabolic Process  The Chemical Reactions and Pathways Involving Amino Acids Carboxylic Acids Containing One or More Amino Groups As Carried Out by Individual Cells. 
    44205   'de Novo' Ump Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Ump Uridine Monophosphate Starting with the Synthesis of (s) Dihydroorotate From Bicarbonate; Ump Biosynthesis May Either Occur Via Reduction by Quinone Nad(+) or Oxygen. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    4070   Aspartate Carbamoyltransferase Activity  Catalysis of the Reaction: L Aspartate + Carbamoyl Phosphate = N Carbamoyl L Aspartate + H(+) + Phosphate. 
    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). 
    16597   Amino Acid Binding  Interacting Selectively and Non Covalently with an Amino Acid Organic Acids Containing One or More Amino Substituents. 
    16740   Transferase Activity  Catalysis of the Transfer of a Group E.g. a Methyl Group Glycosyl Group Acyl Group Phosphorus Containing or Other Groups From One Compound (generally Regarded As the Donor) to Another Compound (generally Regarded As the Acceptor). Transferase Is the Systematic Name For Any Enzyme of EC Class 2. 
    16743   Carboxyl or Carbamoyltransferase Activity  Catalysis of the Transfer of a Carboxyl or Carbamoyl Group From One Compound (donor) to Another (acceptor). 
    Chain B,D
    GO ID   Ontology GO Term Definition
    6207   'de Novo' Pyrimidine Nucleobase Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Pyrimidine Nucleobases 1 3 Diazine Organic Nitrogenous Bases Beginning with the Synthesis of a Pyrimidine Ring From Simpler Precursors. 
    6221   Pyrimidine Nucleotide Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of a Pyrimidine Nucleotide a Compound Consisting of Nucleoside (a Pyrimidine Base Linked to a Deoxyribose or Ribose Sugar) Esterified with a Phosphate Group At Either the 3' or 5' Hydroxyl Group of the Sugar. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    9347   Aspartate Carbamoyltransferase Complex  A Multienzyme Complex That Catalyzes the Formation N Carbamoyl L Aspartate From Carbamoyl Phosphate and L Aspartate. It Exhibits a Variety of Architectural Organizations But in All Microorganisms the Core Catalytic Component Is a Homotrimer of Approximately 34 Kda Polypeptides. 
    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). 
    8270   Zinc Ion Binding  Interacting Selectively and Non Covalently with Zinc (zn) Ions. 
    46872   Metal Ion Binding  Interacting Selectively and Non Covalently with Any Metal Ion. 


     
  •   Gene Details   Hide

    Natural Source

    Chain B,D
    Scientific Name Escherichia coli  
    Strain K12
    Chain A,C
    Scientific Name Escherichia coli  
    Strain K12