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(-) Description

Title :  CRYSTAL STRUCTURE OF HUMAN INOSINE TRIPHOSPHATASE
 
Authors :  P. Stenmark, P. Kursula, C. Arrowsmith, H. Berglund, A. Edwards, M. Ehn, S. Flodin, A. Flores, S. Graslund, M. Hammarstrom, B. M. Hallberg, M. Hogbom, L. Holmberg Schiavone, T. Kotenyova, P. Nilsson-Ehle, T. Nyman, D. Ogg, C. Persson, J. Sagemark, H. Schuler, M. Sundstrom, A. G. Thorsell, S. Van Den Berg, J. Weigelt, P. Nordlund
Date :  22 Dec 05  (Deposition) - 04 Jan 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.09
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Hydrolase, Inosine Triphosphate Pyrophosphohydrolase, Inosine Triphosphatase Deficiency, Itp, Imp, Disease Mutation, Nucleotide Metabolism (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  P. Stenmark, P. Kursula, S. Flodin, S. Graslund, R. Landry, P. Nordlund, H. Schuler
Crystal Structure Of Human Inosine Triphosphatase. Substrate Binding And Implication Of The Inosine Triphosphatase Deficiency Mutation P32T.
J. Biol. Chem. V. 282 3182 2007
PubMed-ID: 17138556  |  Reference-DOI: 10.1074/JBC.M609838200

(-) Compounds

Molecule 1 - INOSINE TRIPHOSPHATE PYROPHOSPHATASE
    ChainsA, B
    EC Number3.6.1.19
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET28A-LIC
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System VectorPET28A-LIC
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymINOSINE TRIPHOSPHATASE, ITPASE, ONCOGENE PROTEIN HLC14-06-P

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2CAR)

(-) Sites  (0, 0)

(no "Site" information available for 2CAR)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2CAR)

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Gly A:-1 -Ser A:0
2Leu A:83 -Pro A:84
3Leu B:83 -Pro B:84

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 4)

Asymmetric/Biological Unit (2, 4)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_015576P32TITPA_HUMANDisease (ITPAD)1127354A/BP32T
2UniProtVAR_075084R178CITPA_HUMANUnclassified (EIEE35)746930990A/BR178C

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2CAR)

(-) Exons   (8, 16)

Asymmetric/Biological Unit (8, 16)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.2aENST000003801132aENSE00001483921chr20:3190006-3190263258ITPA_HUMAN1-22222A:1-22
B:1-22
22
22
1.3ENST000003801133ENSE00000858731chr20:3193815-319387258ITPA_HUMAN23-42202A:23-42
B:23-42
20
20
1.4bENST000003801134bENSE00000858732chr20:3193965-319402965ITPA_HUMAN42-63222A:42-63
B:42-63
22
22
1.5ENST000003801135ENSE00000858733chr20:3194631-319470474ITPA_HUMAN64-88252A:64-88
B:64-88
25
25
1.6bENST000003801136bENSE00001269727chr20:3195927-319595832ITPA_HUMAN88-99122A:88-99
B:88-99
12
12
1.7bENST000003801137bENSE00001269752chr20:3199163-3199278116ITPA_HUMAN99-137392A:99-137
B:99-137
39
39
1.8bENST000003801138bENSE00001269713chr20:3202487-320256377ITPA_HUMAN138-163262A:138-163
B:138-163
26
26
1.9cENST000003801139cENSE00001852672chr20:3204012-3204516505ITPA_HUMAN163-194322A:163-194
B:163-194
32
32

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:196
 aligned with ITPA_HUMAN | Q9BY32 from UniProtKB/Swiss-Prot  Length:194

    Alignment length:196
                              1                                                                                                                                                                                                 
                              |      8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188      
           ITPA_HUMAN     - --MAASLVGKKIVFVTGNAKKLEEVVQILGDKFPCTLVAQKIDLPEYQGEPDEISIQKCQEAVRQVQGPVLVEDTCLCFNALGGLPGPYIKWFLEKLKPEGLHQLLAGFEDKSAYALCTFALSTGDPSQPVRLFRGRTSGRIVAPRGCQDFGWDPCFQPDGYEQTYAEMPKAEKNAVSHRFRALLELQEYFGSLAA 194
               SCOP domains --d2cara1 A:1-194 Inosine triphosphate pyrophosphatase, ITPase                                                                                                                                       SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhh..eeeee..hhhhhhhhhhhhh.....eeeee.........hhhhhhhhhhhhhhhhhh..eeeeeeeeee.hhh..ee.hhhhhhhhhhhhhhhhh.......eeeeeeeeeee........eeeeeeeeeee..........hhh.eee..........hhhhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------T-------------------------------------------------------------------------------------------------------------------------------------------------C---------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) --Exon 1.2a  PDB: A:1-22Exon 1.3            ---------------------Exon 1.5  PDB: A:64-88   ----------Exon 1.7b  PDB: A:99-137               Exon 1.8b  PDB: A:138-163 ------------------------------- Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------Exon 1.4b  PDB: A:42-6------------------------Exon 1.6b   ---------------------------------------------------------------Exon 1.9c  PDB: A:163-194        Transcript 1 (2)
                 2car A  -1 GSMAASLVGKKIVFVTGNAKKLEEVVQILGDKFPCTLVAQKIDLPEYQGEPDEISIQKCQEAVRQVQGPVLVEDTCLCFNALGGLPGPYIKWFLEKLKPEGLHQLLAGFEDKSAYALCTFALSTGDPSQPVRLFRGRTSGRIVAPRGCQDFGWDPCFQPDGYEQTYAEMPKAEKNAVSHRFRALLELQEYFGSLAA 194
                                     8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188      

Chain B from PDB  Type:PROTEIN  Length:194
 aligned with ITPA_HUMAN | Q9BY32 from UniProtKB/Swiss-Prot  Length:194

    Alignment length:194
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190    
           ITPA_HUMAN     1 MAASLVGKKIVFVTGNAKKLEEVVQILGDKFPCTLVAQKIDLPEYQGEPDEISIQKCQEAVRQVQGPVLVEDTCLCFNALGGLPGPYIKWFLEKLKPEGLHQLLAGFEDKSAYALCTFALSTGDPSQPVRLFRGRTSGRIVAPRGCQDFGWDPCFQPDGYEQTYAEMPKAEKNAVSHRFRALLELQEYFGSLAA 194
               SCOP domains d2carb_ B: automated matches                                                                                                                                                                       SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhh..eeeee..hhhhhhhhhhhhh.....eeeee.........hhhhhhhhhhhhhhhhhh..eeeeeeeeee.hhh..ee.hhhhhhhhhhhhhhhhh.......eeeeeeeeeee........eeeeeeeeeee..........hhh.eee..........hhhhhhhhhhhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -------------------------------T-------------------------------------------------------------------------------------------------------------------------------------------------C---------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2a  PDB: B:1-22Exon 1.3            ---------------------Exon 1.5  PDB: B:64-88   ----------Exon 1.7b  PDB: B:99-137               Exon 1.8b  PDB: B:138-163 ------------------------------- Transcript 1 (1)
           Transcript 1 (2) -----------------------------------------Exon 1.4b  PDB: B:42-6------------------------Exon 1.6b   ---------------------------------------------------------------Exon 1.9c  PDB: B:163-194        Transcript 1 (2)
                 2car B   1 MAASLVGKKIVFVTGNAKKLEEVVQILGDKFPCTLVAQKIDLPEYQGEPDEISIQKCQEAVRQVQGPVLVEDTCLCFNALGGLPGPYIKWFLEKLKPEGLHQLLAGFEDKSAYALCTFALSTGDPSQPVRLFRGRTSGRIVAPRGCQDFGWDPCFQPDGYEQTYAEMPKAEKNAVSHRFRALLELQEYFGSLAA 194
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190    

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (2, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2CAR)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2CAR)

(-) Gene Ontology  (15, 15)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (ITPA_HUMAN | Q9BY32)
molecular function
    GO:0036220    ITP diphosphatase activity    Catalysis of the reaction: ITP + H2O = IMP + diphosphate.
    GO:0036222    XTP diphosphatase activity    Catalysis of the reaction: XTP + H2O = xanthosine 5'-phosphate + diphosphate.
    GO:0035870    dITP diphosphatase activity    Catalysis of the reaction: dITP + H2O = dIMP + diphosphate.
    GO:0016787    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.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0047429    nucleoside-triphosphate diphosphatase activity    Catalysis of the reaction: H2O + a nucleoside triphosphate = diphosphate + a nucleotide.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
biological process
    GO:0006193    ITP catabolic process    The chemical reactions and pathways resulting in the breakdown of ITP, inosine (5'-)triphosphate.
    GO:0051276    chromosome organization    A process that is carried out at the cellular level that results in the assembly, arrangement of constituent parts, or disassembly of chromosomes, structures composed of a very long molecule of DNA and associated proteins that carries hereditary information. This term covers covalent modifications at the molecular level as well as spatial relationships among the major components of a chromosome.
    GO:0009204    deoxyribonucleoside triphosphate catabolic process    The chemical reactions and pathways resulting in the breakdown of a deoxyribonucleoside triphosphate, a compound consisting of a nucleobase linked to a deoxyribose sugar esterified with triphosphate on the sugar.
    GO:0055086    nucleobase-containing small molecule metabolic process    The cellular chemical reactions and pathways involving a nucleobase-containing small molecule: a nucleobase, a nucleoside, or a nucleotide.
    GO:0009143    nucleoside triphosphate catabolic process    The chemical reactions and pathways resulting in the breakdown of a nucleoside triphosphate, a compound consisting of a nucleobase linked to a deoxyribose or ribose sugar esterified with triphosphate on the sugar.
    GO:0009117    nucleotide metabolic process    The chemical reactions and pathways involving a nucleotide, a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the glycose moiety; may be mono-, di- or triphosphate; this definition includes cyclic nucleotides (nucleoside cyclic phosphates).
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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    Gly A:-1 - Ser A:0   [ RasMol ]  
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        ITPA_HUMAN | Q9BY322i5d 2j4e 4f95

(-) Related Entries Specified in the PDB File

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