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Crystal structure of human thiamine triphosphatase (THTPA)
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Keywords HYDROLASE
    Text Hydrolase, Structural Genomics Consortium, Phosphatase, CYTH domain, SGC

    Polymeric Molecules

    Chain A,B
    Description Thiamine triphosphatase 
    Fragment Residues 1-215 
    Nonstandard Linkage no 
    Nonstandard Monomers yes 
    Polymer Type polypeptide(L) 
    Formula Weight 26049.0 
    Source Method genetically manipulated  
    Entity Name ThTPase 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    CIT  CITRIC ACID  C6 H8 O7   192.12  View 
    CL  CHLORIDE ION  Cl   35.45  View 
    GOL  GLYCEROL  C3 H8 O3   92.09  View 
    NA  SODIUM ION  Na   22.99  View 
    SO4  SULFATE ION  O4 S   96.06  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B THTPA_HUMAN Q9BU02     

    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
    6091   Generation of Precursor Metabolites and Energy  The Chemical Reactions and Pathways Resulting in the Formation of Precursor Metabolites Substances From Which Energy Is Derived and Any Process Involved in the Liberation of Energy From These Substances. 
    6766   Vitamin Metabolic Process  The Chemical Reactions and Pathways Involving Vitamins. Vitamin Is a General Term For a Number of Unrelated Organic Substances That Occur in Many Foods in Small Amounts and That Are Necessary in Trace Amounts For the Normal Metabolic Functioning of the Body. Vitamins May Be Water Soluble or Fat Soluble and Usually Serve As Components of Coenzyme Systems. 
    6767   Water Soluble Vitamin Metabolic Process  The Chemical Reactions and Pathways Involving Any of a Diverse Group of Vitamins That Are Soluble in Water. 
    6772   Thiamine Metabolic Process  The Chemical Reactions and Pathways Involving Thiamine (vitamin B1) a Water Soluble Vitamin Present in Fresh Vegetables and Meats Especially Liver. 
    16311   Dephosphorylation  The Process of Removing One or More Phosphoric (ester or Anhydride) Residues From a Molecule. 
    42357   Thiamine Diphosphate Metabolic Process  The Chemical Reactions and Pathways Involving Thiamine Diphosphate a Derivative of Thiamine (vitamin B1) Which Acts As a Coenzyme in a Range of Processes Including the Krebs Cycle. 
    42723   Thiamine Containing Compound Metabolic Process  The Chemical Reactions and Pathways Involving Thiamine (vitamin B1) and Compounds Derived From It. 
    44281   Small Molecule Metabolic Process  The Chemical Reactions and Pathways Involving Small Molecules Any Low Molecular Weight Monomeric Non Encoded Molecule. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    5829   Cytosol  The Part of the Cytoplasm That Does Not Contain Organelles But Which Does Contain Other Particulate Matter Such As Protein Complexes. 
    287   Magnesium Ion Binding  Interacting Selectively and Non Covalently with Magnesium (mg) Ions. 
    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. 
    50333   Thiamin Triphosphatase Activity  Catalysis of the Reaction: H(2)o + Thiamine Triphosphate = H(+) + Phosphate + Thiamine Diphosphate. 

  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Common Name Human
    Scientific Name Homo sapiens  
    Genus Homo
    Gene thtpa
    Host Scientific Name Escherichia coli  
    Host Genus Escherichia
    Host Strain Bl21(de3) Gold Prare
    Host Vector Type Plasmid
    Host Plasmid Name Pnic-Bsa4

    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    14 14q11.2 79178     thiamine triphosphatase THTPA    

    Single Nucleotide Polymorphisms (from LS-SNP database)

    SNP ID LsSnp Link dbSNP Link Chain PDB position Amino acid changes Secondary structure Solvent Accessibility Chromosome Chromosome position Ligand
    rs200481524 LS-SNP   dbSNP   A 30 E - > Q Beta Ladder 49% (Exposed) 14 24026054
    rs140606262 LS-SNP   dbSNP   A 59 D - > A Turn 95% (Exposed) 14 24026142
    rs78526433 LS-SNP   dbSNP   A 63 E - > G Beta Ladder 12% (Intermediate) 14 24026154
    rs138467142 LS-SNP   dbSNP   A 68 G - > R Bend 21% (Intermediate) 14 24026168
    rs141465409 LS-SNP   dbSNP   A 70 A - > S Beta 68% (Exposed) 14 24026174
    rs145092399 LS-SNP   dbSNP   A 71 G - > C Turn 101% (Exposed) 14 24026177
    rs113443111 LS-SNP   dbSNP   A 102 G - > R Coil 162% (Exposed) 14 24026270
    rs199545470 LS-SNP   dbSNP   A 108 A - > G Helix 47% (Exposed) 14 24026289
    rs201316975 LS-SNP   dbSNP   A 121 F - > L Beta Ladder 1% (Buried) 14 24026329
    rs150538155 LS-SNP   dbSNP   A 125 R - > W Beta Ladder 14% (Intermediate) 14 24026339
    rs138551053 LS-SNP   dbSNP   A 147 D - > N Beta Ladder 2% (Buried) 14 24026405
    rs201277253 LS-SNP   dbSNP   A 163 H - > R Bend 35% (Intermediate) 14 24026454
    rs147185061 LS-SNP   dbSNP   A 175 I - > F Helix 0% (Buried) 14 24026489
    rs34015250 LS-SNP   dbSNP   A 176 H - > R Helix 48% (Exposed) 14 24026493
    rs139321398 LS-SNP   dbSNP   A 191 P - > T Coil 37% (Exposed) 14 24027927 CL
    rs149980003 LS-SNP   dbSNP   A 200 R - > H Helix 47% (Exposed) 14 24027955
    rs146552511 LS-SNP   dbSNP   A 202 R - > W Coil 6% (Buried) 14 24027960
    rs147349263 LS-SNP   dbSNP   A 203 P - > L Helix 26% (Intermediate) 14 24027964