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(-) Description

Title :  CRYSTAL STRUCTURE OF HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE FROM THERMOANAEROBACTER TENGCONGENSIS
 
Authors :  Q. Chen, Y. H. Liang, X. C. Gu, M. Luo, X. D. Su
Date :  03 Oct 03  (Deposition) - 19 Oct 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Crystal Structure, Phosphoribosyltransferase, Thermoanaerobacter Tengcongensis, Purine Salvage (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Q. Chen, Y. H. Liang, X. C. Gu, M. Luo, X. D. Su
Crystal Structure Of Hypoxanthine-Guanine Phosphoribosyltransferase From Thermoanaerobacter Tengcongensis
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE
    Chains: A, B
    EC Number: 2.4.2.8
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-11A-DEST
    Expression System Strain: BL21(DE3)PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: TTE2394
    Organism Scientific: THERMOANAEROBACTER TENGCONGENSIS
    Organism Taxid: 119072

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (2x): AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 3)

Asymmetric Unit (2, 3)
No.NameCountTypeFull Name
1ACT1Ligand/IonACETATE ION
2MG2Ligand/IonMAGNESIUM ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1ACT2Ligand/IonACETATE ION
2MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:101 , ASP A:102 , HOH A:209 , HOH A:216 , HOH A:217 , HOH A:248BINDING SITE FOR RESIDUE MG A 190
2AC2SOFTWAREGLU B:101 , ASP B:102 , HOH B:1224 , HOH B:1237 , HOH B:1261BINDING SITE FOR RESIDUE MG B 1190
3AC3SOFTWAREGLU B:101 , ILE B:103 , ILE B:104 , ASP B:105 , GLY B:107 , LEU B:110 , HOH B:1250BINDING SITE FOR RESIDUE ACT B 200

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1R3U)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Leu A:44 -Lys A:45
2Leu B:44 -Lys B:45

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1R3U)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1R3U)

(-) Exons   (0, 0)

(no "Exon" information available for 1R3U)

(-) Sequences/Alignments

Asymmetric 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:179
 aligned with Q8R7L0_CALS4 | Q8R7L0 from UniProtKB/TrEMBL  Length:181

    Alignment length:179
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171         
         Q8R7L0_CALS4     2 PSPMEDIEEILITEEQLKAKVKELGEMITRDYEGKDLVLIGVLKGAIMFMSDLSRAIDLPLSIDFMAVSSYGSSTKSSGIVKIIKDHDIDIEGKDVLIVEDIIDSGLTLAYLRETLLGRKPRSLKICTILDKPERREADVKVDYCGFKIPDKFVVGYGLDYAEKYRNLPFIGVLKPELY 180
               SCOP domains d1r3ua_ A: Hypoxanthine-guanine PRTase (HGPRTase)                                                                                                                                   SCOP domains
               CATH domains 1r3uA00 A:2-180  [code=3.40.50.2020, no name defined]                                                                                                                               CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhh.eeeeeehhhhhhhhhhhhhhhhhhhh....eeeeee...hhhhhhhhhhh.....eeeeeeeee...hhhhhh.eeeee.........eeeeeeeee..hhhhhhhhhhhhh....eeeeeeeee...............ee.....ee...............eeee..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1r3u A   2 PSPMEDIEEILITEEQLKAKVKELGEMITRDYEGKDLVLIGVLKGAIMFMSGLSRAIDLPLSIDFLAVSSYGSSTKSSGIVKIIKDHDIDIEGKDVLIVEDIIDSGLTLAYLRETLLGRKPRSLKICTILDKPERREADVKVDYCGFKIPDKFVVGYGLDYAEKYRNLPFIGVLKPELY 180
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171         


Chain B from PDB  Type:PROTEIN  Length:178
 aligned with Q8R7L0_CALS4 | Q8R7L0 from UniProtKB/TrEMBL  Length:181

    Alignment length:178
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172        
         Q8R7L0_CALS4     3 SPMEDIEEILITEEQLKAKVKELGEMITRDYEGKDLVLIGVLKGAIMFMSDLSRAIDLPLSIDFMAVSSYGSSTKSSGIVKIIKDHDIDIEGKDVLIVEDIIDSGLTLAYLRETLLGRKPRSLKICTILDKPERREADVKVDYCGFKIPDKFVVGYGLDYAEKYRNLPFIGVLKPELY 180
               SCOP domains d1r3ub_ B: Hypoxanthine-guanine PRTase (HGPRTase)                                                                                                                                  SCOP domains
               CATH domains 1r3uB00 B:3-180  [code=3.40.50.2020, no name defined]                                                                                                                              CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhh.eeeeeehhhhhhhhhhhhhhhhhhhh....eeeeee...hhhhhhhhhhh.....eeeeeeeee.hhhhhhhh.eeeee.........eeeeeeeee..hhhhhhhhhhhhh....eeeeeeeee.hhhh.......eeeee.....ee...............eeee.hhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1r3u B   3 SPMEDIEEILITEEQLKAKVKELGEMITRDYEGKDLVLIGVLKGAIMFMSGLSRAIDLPLSIDFLAVSSYGSSTKSSGIVKIIKDHDIDIEGKDVLIVEDIIDSGLTLAYLRETLLGRKPRSLKICTILDKPERREADVKVDYCGFKIPDKFVVGYGLDYAEKYRNLPFIGVLKPELY 180
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  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  (1, 2)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 2)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1R3U)

(-) Gene Ontology  (7, 7)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q8R7L0_CALS4 | Q8R7L0)
molecular function
    GO:0004422    hypoxanthine phosphoribosyltransferase activity    Catalysis of the reaction: IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016740    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.
    GO:0016757    transferase activity, transferring glycosyl groups    Catalysis of the transfer of a glycosyl group from one compound (donor) to another (acceptor).
biological process
    GO:0009116    nucleoside metabolic process    The chemical reactions and pathways involving a nucleoside, a nucleobase linked to either beta-D-ribofuranose (a ribonucleoside) or 2-deoxy-beta-D-ribofuranose, (a deoxyribonucleoside), e.g. adenosine, guanosine, inosine, cytidine, uridine and deoxyadenosine, deoxyguanosine, deoxycytidine and thymidine (= deoxythymidine).
    GO:0006166    purine ribonucleoside salvage    Any process which produces a purine nucleoside from derivatives of it, without de novo synthesis.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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