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Structure of human aldosterone synthase, CYP11B2, in complex with deoxycorticosterone
Biology and Chemistry Report
4DVQ
  •   Structure Details   Hide

    Structure Keywords

    Keywords OXIDOREDUCTASE
    Text cytochrome P450, CYP11B2, Aldosterone synthase, monooxygenase, heme protein, mineralocorticoid, corticosteroid, mitochondria, membrane, OXIDOREDUCTASE

    Polymeric Molecules

    Chain A,B,C,D,E,F,G,H,I,J,K,L
    Description Cytochrome P450 11B2, mitochondrial 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 55650.2 
    Source Method genetically manipulated  
    Entity Name Aldosterone synthase, ALDOS, Aldosterone-synthesizing enzyme, CYPXIB2, Cytochrome P-450Aldo, Cytochrome P-450C18, Steroid 18-hydroxylase 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    1CA  DESOXYCORTICOSTERONE  C21 H30 O3   330.46  View 
    HEM  PROTOPORPHYRIN IX CONTAINING FE  C34 H32 Fe N4 O4   616.49  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,E,F,G,H,I,J,K,L C11B2_HUMAN B0ZBE4     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B C D E F G H I J K L  1.14.15.4      
    A B C D E F G H I J K L  1.14.15.5      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B,C,D,E,F,G,H,I,J,K,L
    GO ID   Ontology GO Term Definition
    2017   Regulation of Blood Volume by Renal Aldosterone  The Process in Which the Hormone Aldosterone Decreases the Rate of Diuresis and Natriuresis Resulting in Increased Blood Volume. 
    3091   Renal Water Homeostasis  Renal Process Involved in the Maintenance of an Internal Steady State of Water in the Body. 
    6629   Lipid Metabolic Process  The Chemical Reactions and Pathways Involving Lipids Compounds Soluble in an Organic Solvent But Not or Sparingly in an Aqueous Solvent. Includes Fatty Acids; Neutral Fats Other Fatty Acid Esters and Soaps; Long Chain (fatty) Alcohols and Waxes; Sphingoids and Other Long Chain Bases; Glycolipids Phospholipids and Sphingolipids; and Carotenes Polyprenols Sterols Terpenes and Other Isoprenoids. 
    6694   Steroid Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Steroids Compounds with a 1 2 Cyclopentanoperhydrophenanthrene Nucleus; Includes De Novo Formation and Steroid Interconversion by Modification. 
    6700   C21 Steroid Hormone Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of C21 Steroid Hormones Steroid Compounds Containing 21 Carbons Which Function As Hormones. 
    6705   Mineralocorticoid Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Mineralocorticoids Hormonal C21 Corticosteroids Synthesized From Cholesterol. 
    6805   Xenobiotic Metabolic Process  The Chemical Reactions and Pathways Involving a Xenobiotic Compound a Compound Foreign to Living Organisms. Used of Chemical Compounds E.g. a Xenobiotic Chemical Such As a Pesticide. 
    8202   Steroid Metabolic Process  The Chemical Reactions and Pathways Involving Steroids Compounds with a 1 2 Cyclopentanoperhydrophenanthrene Nucleus. 
    16125   Sterol Metabolic Process  The Chemical Reactions and Pathways Involving Sterols Steroids with One or More Hydroxyl Groups and a Hydrocarbon Side Chain in the Molecule. 
    32342   Aldosterone Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Aldosterone a Corticosteroid Hormone That Is Produced by the Zona Glomerulosa of the Adrenal Cortex and Regulates Salt (sodium and Potassium) and Water Balance. 
    32870   Cellular Response to Hormone 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 Hormone Stimulus. 
    34651   Cortisol Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Cortisol the Steroid Hormone 11 Beta 17 21 Trihydroxypregn 4 Ene 3 20 Dione. Cortisol Is Synthesized From Cholesterol in the Adrenal Gland and Controls Carbohydrate Fat and Protein Metabolism and Has Anti Inflammatory Properties. 
    35865   Cellular Response to Potassium Ion  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 Potassium Ion Stimulus. 
    44281   Small Molecule Metabolic Process  The Chemical Reactions and Pathways Involving Small Molecules Any Low Molecular Weight Monomeric Non Encoded Molecule. 
    55075   Potassium Ion Homeostasis  Any Process Involved in the Maintenance of an Internal Steady State of Potassium Ions Within an Organism or Cell. 
    55078   Sodium Ion Homeostasis  Any Process Involved in the Maintenance of an Internal Steady State of Sodium Ions Within an Organism or Cell. 
    55114   Oxidation Reduction Process  A Metabolic Process That Results in the Removal or Addition of One or More Electrons to or From a Substance with or Without the Concomitant Removal or Addition of a Proton or Protons. 
    5739   Mitochondrion  A Semiautonomous Self Replicating Organelle That Occurs in Varying Numbers Shapes and Sizes in the Cytoplasm of Virtually All Eukaryotic Cells. It Is Notably the Site of Tissue Respiration. 
    5743   Mitochondrial Inner Membrane  The Inner I.e. Lumen Facing Lipid Bilayer of the Mitochondrial Envelope. It Is Highly Folded to Form Cristae. 
    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. 
    31966   Mitochondrial Membrane  Either of the Lipid Bilayers That Surround the Mitochondrion and Form the Mitochondrial Envelope. 
    4497   Monooxygenase Activity  Catalysis of the Incorporation of One Atom From Molecular Oxygen Into a Compound and the Reduction of the Other Atom of Oxygen to Water. 
    4507   Steroid 11 Beta Monooxygenase Activity  Catalysis of the Reaction: a Steroid + Reduced Adrenal Ferredoxin + O2 = an 11 Beta Hydroxysteroid + Oxidized Adrenal Ferredoxin + H2o. 
    5506   Iron Ion Binding  Interacting Selectively and Non Covalently with Iron (fe) Ions. 
    16491   Oxidoreductase Activity  Catalysis of an Oxidation Reduction (redox) Reaction a Reversible Chemical Reaction in Which the Oxidation State of an Atom or Atoms Within a Molecule Is Altered. One Substrate Acts As a Hydrogen or Electron Donor and Becomes Oxidized While the Other Acts As Hydrogen or Electron Acceptor and Becomes Reduced. 
    16705   Oxidoreductase Activity Acting On Paired Donors with Incorporation or Reduction of Molecular Oxygen  Catalysis of an Oxidation Reduction (redox) Reaction in Which Hydrogen or Electrons Are Transferred From Each of Two Donors and Molecular Oxygen Is Reduced or Incorporated Into a Donor. 
    20037   Heme Binding  Interacting Selectively and Non Covalently with Heme Any Compound of Iron Complexed in a Porphyrin (tetrapyrrole) Ring. 
    46872   Metal Ion Binding  Interacting Selectively and Non Covalently with Any Metal Ion. 
    47783   Corticosterone 18 Monooxygenase Activity  Catalysis of the Reaction: Corticosterone + Reduced Adrenal Ferredoxin + O2 = 18 Hydroxycorticosterone + Oxidized Adrenal Ferredoxin + H2o. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B,C,D,E,F,G,H,I,J,K,L
    Common Name Human
    Scientific Name Homo sapiens  
    Gene aldosterone synthase, cyp11b2
    Host Scientific Name Escherichia coli  
    Host Strain Dh5a
    Host Vector Type Plasmid
    Host Plasmid Name pCW


    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    8 8q21-q22 1585     cytochrome P450, family 11, subfamily B, polypeptide 2 CYP11B2