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(-) Description

Title :  QUINOLINIC ACID PHOSPHORIBOSYLTRANSFERASE WITH BOUND QUINOLINIC ACID
 
Authors :  J. C. Eads, D. Ozturk, T. B. Wexler, C. Grubmeyer, J. C. Sacchettini
Date :  20 Sep 96  (Deposition) - 12 Mar 97  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Glycosyltransferase, Quinolinic Acid, Nad Biosynthesis (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. C. Eads, D. Ozturk, T. B. Wexler, C. Grubmeyer, J. C. Sacchettini
A New Function For A Common Fold: The Crystal Structure Of Quinolinic Acid Phosphoribosyltransferase.
Structure V. 5 47 1997
PubMed-ID: 9016724  |  Reference-DOI: 10.1016/S0969-2126(97)00165-2
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - QUINOLINIC ACID PHOSPHORIBOSYLTRANSFERASE
    Cell Line: BL21
    Chains: A, B
    EC Number: 2.4.2.19
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PDOQA01
    Expression System Strain: BL21 (DE3)
    Expression System Taxid: 469008
    Organism Scientific: SALMONELLA TYPHIMURIUM
    Organism Taxid: 602
    Synonym: QUINOLINATE PRTASE, QAPRTASE, QAPRT, QPRT

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1NTM2Ligand/IonQUINOLINIC ACID

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:151 , ARG A:152 , LYS A:153 , HIS A:174 , ARG A:175 , GLU A:256BINDING SITE FOR RESIDUE NTM A 300
2AC2SOFTWAREARG A:118 , THR B:151 , ARG B:152 , LYS B:153 , HIS B:174 , ARG B:175 , LEU B:183 , GLU B:256 , SER B:258BINDING SITE FOR RESIDUE NTM B 301

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1QAP)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1QAP)

(-) 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:289
 aligned with NADC_SALTY | P30012 from UniProtKB/Swiss-Prot  Length:297

    Alignment length:289
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288         
           NADC_SALTY     9 DDRRDALLERINLDIPAAVAQALREDLGGEVDAGNDITAQLLPADTQAHATVITREDGVFCGKRWVEEVFIQLAGDDVRLTWHVDDGDAIHANQTVFELNGPARVLLTGERTALNFVQTLSGVASEVRRYVGLLAGTQTQLLDTRKTLPGLRTALKYAVLCGGGANHRLGLTDAFLIKENHIIASGSVRQAVEKAFWLHPDVPVEVEVENLDELDDALKAGADIIMLDNFNTDQMREAVKRVNGQARLEVSGNVTAETLREFAETGVDFISVGALTKHVRALDLSMRFC 297
               SCOP domains d1qapa2 A:8-129                                                                                                           d1qapa1 A:130-296 Quinolinic acid phosphoribosyltransferase (Nicotinate-nucleotide pyrophosphorylase, NadC), C-terminal domain                                          SCOP domains
               CATH domains --------------1qapA01 A:22-132,A:286-296  [code=3.90.1170.20, no name defined]                                               1qapA02 A:133-285 Aldolase class I                                                                                                                       1qapA01     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhh......hhh..hhhh.........eeee........hhhhhhhhhhhh...eeeee............eeeeeee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eee.........hhhhhhhhhhh...........eeee.hhhhhhh..hhhhhhhhhhh....eeeeee..hhhhhhhhh....eeee....hhhhhhhhhh......eee.....hhhhhhhhhh...eee..hhhheee...eeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qap A   8 DDRRDALLERINLDIPAAVAQALREDLGGEVDAGNDITAQLLPADTQAHATVITREDGVFCGKRWVEEVFIQLAGDDVRLTWHVDDGDAIHANQTVFELQGPARVLLTGERTALNFVQTLSGVASEVRRYVGLLAGTQTQLLDTRKTLPGLRTALKYAVLCGGGANHRLGLTDAFLIKENHIIASGSVRQAVEKAFWLHPDVPVEVEVENLDELDDALKAGADIIMLDNFNTDQMREAVKRVNGQARLEVSGNVTAETLREFAETGVDFISVGALTKHVRALDLSMRFC 296
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287         


Chain B from PDB  Type:PROTEIN  Length:289
 aligned with NADC_SALTY | P30012 from UniProtKB/Swiss-Prot  Length:297

    Alignment length:289
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288         
           NADC_SALTY     9 DDRRDALLERINLDIPAAVAQALREDLGGEVDAGNDITAQLLPADTQAHATVITREDGVFCGKRWVEEVFIQLAGDDVRLTWHVDDGDAIHANQTVFELNGPARVLLTGERTALNFVQTLSGVASEVRRYVGLLAGTQTQLLDTRKTLPGLRTALKYAVLCGGGANHRLGLTDAFLIKENHIIASGSVRQAVEKAFWLHPDVPVEVEVENLDELDDALKAGADIIMLDNFNTDQMREAVKRVNGQARLEVSGNVTAETLREFAETGVDFISVGALTKHVRALDLSMRFC 297
               SCOP domains d1qapb2 B:8-129                                                                                                           d1qapb1 B:130-296 Quinolinic acid phosphoribosyltransferase (Nicotinate-nucleotide pyrophosphorylase, NadC), C-terminal domain                                          SCOP domains
               CATH domains --------------1qapB01 B:22-132,B:286-296  [code=3.90.1170.20, no name defined]                                               1qapB02 B:133-285 Aldolase class I                                                                                                                       1qapB01     CATH domains
           Pfam domains (1) --------------------------------QRPTase_N-1qapB01 B:40-128                                                               -QRPTase_C-1qapB03 B:130-294                                                                                                                                          -- Pfam domains (1)
           Pfam domains (2) --------------------------------QRPTase_N-1qapB02 B:40-128                                                               -QRPTase_C-1qapB04 B:130-294                                                                                                                                          -- Pfam domains (2)
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhh.......hhh.hhhhh.....eeeeeeee........hhhhhhhhhhh....eeeee............eeeeeeeehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......eee.........hhhhhhhhhhh............eee.hhhhhhh..hhhhhhhhhhh.....eeeee..hhhhhhhh.....eeee....hhhhhhhhhhh....eee......hhhhhhhhhh...eee.hhh..eee...eeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qap B   8 DDRRDALLERINLDIPAAVAQALREDLGGEVDAGNDITAQLLPADTQAHATVITREDGVFCGKRWVEEVFIQLAGDDVRLTWHVDDGDAIHANQTVFELQGPARVLLTGERTALNFVQTLSGVASEVRRYVGLLAGTQTQLLDTRKTLPGLRTALKYAVLCGGGANHRLGLTDAFLIKENHIIASGSVRQAVEKAFWLHPDVPVEVEVENLDELDDALKAGADIIMLDNFNTDQMREAVKRVNGQARLEVSGNVTAETLREFAETGVDFISVGALTKHVRALDLSMRFC 296
                                    17        27        37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287
   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, 4)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 4)

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

(-) Pfam Domains  (2, 4)

Asymmetric/Biological Unit
(-)
Clan: Hybrid (58)
(-)
Clan: TIM_barrel (694)

(-) Gene Ontology  (9, 9)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (NADC_SALTY | P30012)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0004514    nicotinate-nucleotide diphosphorylase (carboxylating) activity    Catalysis of the reaction: CO(2) + diphosphate + nicotinate D-ribonucleotide = 5-phospho-alpha-D-ribose 1-diphosphate + 2 H(+) + quinolinate.
    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).
    GO:0016763    transferase activity, transferring pentosyl groups    Catalysis of the transfer of a pentosyl group from one compound (donor) to another (acceptor).
biological process
    GO:0009435    NAD biosynthetic process    The chemical reactions and pathways resulting in the formation of nicotinamide adenine dinucleotide, a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; biosynthesis may be of either the oxidized form, NAD, or the reduced form, NADH.
    GO:0019363    pyridine nucleotide biosynthetic process    The chemical reactions and pathways resulting in the formation of a pyridine nucleotide, a nucleotide characterized by a pyridine derivative as a nitrogen base.
    GO:0034213    quinolinate catabolic process    The chemical reactions and pathways resulting in the breakdown of quinolinate, the anion of quinolinic acid, also known as 2,3-pyridinedicarboxylic acid.
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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