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(-) Description

Title :  NOVEL IMP BINDING IN FEEDBACK INHIBITION OF HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE FROM THERMOANAEROBACTER TENGCONGENSIS
 
Authors :  Q. Chen, Y. Liang, X. Su, X. Gu, X. Zheng, M. Luo
Date :  04 Jan 05  (Deposition) - 10 May 05  (Release) - 16 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Biol. Unit 2:  B  (2x)
Biol. Unit 3:  A  (2x)
Keywords :  Protein-Nucleotide Complex, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Q. Chen, Y. Liang, X. Su, X. Gu, X. Zheng, M. Luo
Alternative Imp Binding In Feedback Inhibition Of Hypoxanthine-Guanine Phosphoribosyltransferase From Thermoanaerobacter Tengcongensis.
J. Mol. Biol. V. 348 1199 2005
PubMed-ID: 15854655  |  Reference-DOI: 10.1016/J.JMB.2005.02.064

(-) 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: HGPRT
    Mutation: YES
    Organism Scientific: THERMOANAEROBACTER TENGCONGENSIS
    Organism Taxid: 273068
    Strain: MB4

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (2x): AB
Biological Unit 2 (2x):  B
Biological Unit 3 (2x): A 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 8)

Asymmetric Unit (3, 8)
No.NameCountTypeFull Name
1ACT2Ligand/IonACETATE ION
2IMP2Ligand/IonINOSINIC ACID
3MG4Ligand/IonMAGNESIUM ION
Biological Unit 1 (2, 8)
No.NameCountTypeFull Name
1ACT4Ligand/IonACETATE ION
2IMP4Ligand/IonINOSINIC ACID
3MG-1Ligand/IonMAGNESIUM ION
Biological Unit 2 (2, 4)
No.NameCountTypeFull Name
1ACT2Ligand/IonACETATE ION
2IMP2Ligand/IonINOSINIC ACID
3MG-1Ligand/IonMAGNESIUM ION
Biological Unit 3 (2, 4)
No.NameCountTypeFull Name
1ACT2Ligand/IonACETATE ION
2IMP2Ligand/IonINOSINIC ACID
3MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:103 , ASP A:105 , SER A:106 , GLY A:107 , LEU A:108 , THR A:109 , LEU A:110 , HOH A:1281BINDING SITE FOR RESIDUE ACT A 1200
2AC2SOFTWAREILE B:103 , ASP B:105 , SER B:106 , GLY B:107 , LEU B:108 , THR B:109 , LEU B:110 , HOH B:2294BINDING SITE FOR RESIDUE ACT B 2200
3AC3SOFTWAREGLU B:101 , ASP B:102 , HOH B:2273 , HOH B:2279 , HOH B:2285 , HOH B:2288BINDING SITE FOR RESIDUE MG B 2191
4AC4SOFTWAREASP B:161 , IMP B:2210 , HOH B:2253 , HOH B:2258 , HOH B:2278 , HOH B:2283BINDING SITE FOR RESIDUE MG B 2192
5AC5SOFTWAREGLU A:101 , ASP A:102 , HOH A:1251 , HOH A:1269 , HOH A:1270BINDING SITE FOR RESIDUE MG A 1191
6AC6SOFTWAREASP A:161 , IMP A:1210 , HOH A:1236 , HOH A:1257 , HOH A:1260 , HOH A:1274BINDING SITE FOR RESIDUE MG A 1192
7AC7SOFTWARELEU A:44 , LYS A:45 , GLY A:46 , LYS A:133 , PHE A:154 , VAL A:155 , ASP A:161 , ARG A:167 , MG A:1192 , HOH A:1257 , HOH A:1274 , HOH A:1283 , HOH A:1284BINDING SITE FOR RESIDUE IMP A 1210
8AC8SOFTWARELYS B:45 , GLY B:46 , ASP B:105 , LYS B:133 , PHE B:154 , VAL B:155 , ASP B:161 , ARG B:167 , MG B:2192 , HOH B:2250 , HOH B:2253 , HOH B:2278 , HOH B:2283 , HOH B:2285 , HOH B:2291BINDING SITE FOR RESIDUE IMP B 2210

(-) SS Bonds  (0, 0)

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

(-) 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 1YFZ)

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1YFZ)

(-) 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: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 d1yfza1 A:3-180 Xanthine-guanine PRTase (XPRTase)                                                                                                                                  SCOP domains
               CATH domains 1yfzA00 A: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......................eeee.hhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1yfz A   3 SPMEDIEEILITEEQLKAKVKELGEMITRDYEGKDLVLIGVLKGAIMFMSGLSRAIDLPLSIDFLAVSSYGSSTKSSGIVKIIKDHDIDIEGKDVLIVEDIIDSGLTLAYLRETLLGRKPRSLKICTILDKPERREADVKVDYCGFKIPDKFVVGYGLDYAEKYRNLPFIGVLKPELY 180
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172        


Chain B from PDB  Type:PROTEIN  Length:177
 aligned with Q8R7L0_CALS4 | Q8R7L0 from UniProtKB/TrEMBL  Length:181

    Alignment length:177
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       
         Q8R7L0_CALS4     4 PMEDIEEILITEEQLKAKVKELGEMITRDYEGKDLVLIGVLKGAIMFMSDLSRAIDLPLSIDFMAVSSYGSSTKSSGIVKIIKDHDIDIEGKDVLIVEDIIDSGLTLAYLRETLLGRKPRSLKICTILDKPERREADVKVDYCGFKIPDKFVVGYGLDYAEKYRNLPFIGVLKPELY 180
               SCOP domains d1yfzb_ B: Xanthine-guanine PRTase (XPRTase)                                                                                                                                      SCOP domains
               CATH domains 1yfzB00 B:4-180  [code=3.40.50.2020, no name defined]                                                                                                                             CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeeeehhhhhhhhhhhhhhhhhhhh....eeeeee...hhhhhhhhhhh....eeeeeeeeee.hhhhhhhh.eeeee.........eeeeeeeee..hhhhhhhhhhhhh....eeeeeeeee.hhhh.......eeeee.....ee...............eeee.hhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1yfz B   4 PMEDIEEILITEEQLKAKVKELGEMITRDYEGKDLVLIGVLKGAIMFMSGLSRAIDLPLSIDFLAVSSYGSSTKSSGIVKIIKDHDIDIEGKDVLIVEDIIDSGLTLAYLRETLLGRKPRSLKICTILDKPERREADVKVDYCGFKIPDKFVVGYGLDYAEKYRNLPFIGVLKPELY 180
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173
   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  (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 1YFZ)

(-) 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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 Related Entries

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

UniProtKB/TrEMBL
        Q8R7L0_CALS4 | Q8R7L0: 1r3u 2geb

(-) Related Entries Specified in the PDB File

1r3u THE SAME PROTEIN WITHOUT IMP