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(-) Description

Title :  CRYSTAL STRUCTURE OF YHHW FROM ESCHERICHIA COLI
 
Authors :  M. Adams, Z. Jia, Montreal-Kingston Bacterial Structural Genomics Initiative (Bsgi)
Date :  16 Jun 04  (Deposition) - 14 Jun 05  (Release) - 28 Apr 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.76
Chains :  Asym./Biol. Unit :  A
Keywords :  Bicupin, Pirin, Montreal-Kingston Bacterial Structural Genomics Initiative, Bsgi, Structural Genomics, Unknown Function (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. Adams, Z. Jia
Structural And Biochemical Analysis Reveal Pirins To Possess Quercetinase Activity.
J. Biol. Chem. V. 280 28675 2005
PubMed-ID: 15951572  |  Reference-DOI: 10.1074/JBC.M501034200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN YHHW
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET21B
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: YHHW, B3439
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 13)

Asymmetric/Biological Unit (2, 13)
No.NameCountTypeFull Name
1CD6Ligand/IonCADMIUM ION
2MSE7Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:57 , HIS A:59 , HIS A:101 , HOH A:1052 , HOH A:1059BINDING SITE FOR RESIDUE CD A 1000
2AC2SOFTWAREGLU A:49 , LYS A:198 , HIS A:238 , HOH A:1145BINDING SITE FOR RESIDUE CD A 1001
3AC3SOFTWARESER A:200 , ASP A:203 , HOH A:1006 , HOH A:1008 , HOH A:1041 , HOH A:1094BINDING SITE FOR RESIDUE CD A 1002
4AC4SOFTWAREGLU A:83 , GLU A:89 , HOH A:1019 , HOH A:1043 , HOH A:1072BINDING SITE FOR RESIDUE CD A 1003
5AC5SOFTWAREASN A:33 , HIS A:237 , HIS A:239 , HOH A:1085 , HOH A:1086BINDING SITE FOR RESIDUE CD A 1004
6AC6SOFTWAREASP A:136 , HOH A:1087BINDING SITE FOR RESIDUE CD A 1005

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1TQ5)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1TQ5)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1TQ5)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1TQ5)

(-) Exons   (0, 0)

(no "Exon" information available for 1TQ5)

(-) 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:234
 aligned with YHHW_ECOLI | P46852 from UniProtKB/Swiss-Prot  Length:231

    Alignment length:234
                                                                                                                                                                                                                                                                231   
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230|   
           YHHW_ECOLI     1 MIYLRKANERGHANHGWLDSWHTFSFANYYDPNFMGFSALRVINDDVIEAGQGFGTHPHKDMEILTYVLEGTVEHQDSMGNKEQVPAGEFQIMSAGTGIRHSEYNPSSTERLHLYQIWIMPEENGITPRYEQRRFDAVQGKQLVLSPDARDGSLKVHQDMELYRWALLKDEQSVHQIAAERRVWIQVVKGNVTINGVKASTSDGLAIWDEQAISIHADSDSEVLLFDLPPV---   -
               SCOP domains d1tq5a1 A:1-231 Hypothetical protein YhhW                                                                                                                                                                                              --- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains --Pirin-1tq5A01 A:3-119                                                                                                ------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeehhhhheeee...eeeee.................eeeeeeeee....eeeeeee...eeeeeeee.eeeeee....eeeee...eeeee....eeeeee.......eeeeeeee.........eeeee.......eeeeee..hhhhhee.....eeeeeee....eeee......eeeeeeee.eeee..eeee...eeeee....eeeee...eeeeeeee...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1tq5 A   1 mIYLRKANERGHANHGWLDSWHTFSFANYYDPNFmGFSALRVINDDVIEAGQGFGTHPHKDmEILTYVLEGTVEHQDSmGNKEQVPAGEFQImSAGTGIRHSEYNPSSTERLHLYQIWImPEENGITPRYEQRRFDAVQGKQLVLSPDARDGSLKVHQDmELYRWALLKDEQSVHQIAAERRVWIQVVKGNVTINGVKASTSDGLAIWDEQAISIHADSDSEVLLFDLPPVHHH 239
                            |       10        20        30    |   40        50        60 |      70        80        90  |    100       110       120       130       140       150       160       170       180       190       200       210       220       230||  
                            |                                35-MSE                     62-MSE           79-MSE        93-MSE                    120-MSE                                 160-MSE                                                                231|  
                            1-MSE                                                                                                                                                                                                                                237
   Legend:   → Mismatch (orange background)
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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, 1)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1TQ5)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Cupin (179)

(-) Gene Ontology  (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (YHHW_ECOLI | P46852)
molecular function
    GO:0051213    dioxygenase activity    Catalysis of an oxidation-reduction (redox) reaction in which both atoms of oxygen from one molecule of O2 are incorporated into the (reduced) product(s) of the reaction. The two atoms of oxygen may be distributed between two different products.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0016491    oxidoreductase activity    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
    GO:0008127    quercetin 2,3-dioxygenase activity    Catalysis of the reaction: H(+) + O(2) + quercetin = 2-(3,4-dihydroxybenzoyloxy)-4,6-dihydroxybenzoate + CO.
biological process
    GO:0055114    oxidation-reduction process    A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.

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