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(-) Description

Title :  CRYSTAL STRUCTURE OF ISOFLAVONE REDUCTASE
 
Authors :  X. Wang, X. He, J. Lin, H. Shao, Z. Chang, R. A. Dixon
Date :  09 Mar 06  (Deposition) - 25 Apr 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.60
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Nadph-Dependent Reductase, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  X. Wang, X. He, J. Lin, H. Shao, Z. Chang, R. A. Dixon
Crystal Structure Of Isoflavone Reductase From Alfalfa (Medicago Sativa L. )
J. Mol. Biol. V. 358 1341 2006
PubMed-ID: 16600295  |  Reference-DOI: 10.1016/J.JMB.2006.03.022
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ISOFLAVONE REDUCTASE
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET28A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Organism Scientific: MEDICAGO SATIVA
    Organism Taxid: 3879

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (0, 0)

(no "Site" information available for 2GAS)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (4, 4)

Asymmetric Unit
No.Residues
1Glu A:135 -Pro A:136
2Phe A:268 -Pro A:269
3Glu B:135 -Pro B:136
4Phe B:268 -Pro B:269

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2GAS)

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 2GAS)

(-) 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:307
 aligned with IFR_MEDSA | P52575 from UniProtKB/Swiss-Prot  Length:318

    Alignment length:316
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312      
            IFR_MEDSA     3 TENKILILGPTGAIGRHIVWASIKAGNPTYALVRKTPGNVNKPKLITAANPETKEELIDNYQSLGVILLEGDINDHETLVKAIKQVDIVICAAGRLLIEDQVKIIKAIKEAGNVKKFFPSEFGLDVDRHEAVEPVRQVFEEKASIRRVIEAEGVPYTYLCCHAFTGYFLRNLAQLDTTDPPRDKVVILGDGNVKGAYVTEADVGTFTIRAANDPNTLNKAVHIRLPENYLTQNEVIALWEKKIGKTLEKTYVSEEQVLKDIQESSFPHNYLLALYHSQQIKGDAVYEIDPAKDIEASEAYPDVTYTTADEYLNQFV 318
               SCOP domains d2gasa_ A: automated matches                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 2gasA01 A:3-162,A:202-224,A:289-302          NAD(P)-binding Rossmann-like Domain                                                                                2gasA02 A:163-201,A:225-288,A:303-318  2gasA01                2gasA02 A:163-201,A:225-288,A:303-318                           2gasA01       2gasA02          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeee.....hhhhhhhhhhhhh..eeeee...---------....hhhhhhhhhhhhhhh..eeee....hhhhhhhhhh...eeee.....hhhhhhhhhhhhhhhh...eee...............hhhhhhhhhhhhhhhhhhhh...eeee..ee...hhhhh...........eeeee.....eeeeehhhhhhhhhhhhhhhhhhh.eeee..hhh.eeehhhhhhhhhhhhh...eeeeehhhhhhhhhhhh..hhhhhhhhhhhhhh............eeehhhhh......hhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2gas A   3 TENKILILGPTGAIGRHIVWASIKAGNPTYALVRKT---------ITAANPETKEELIDNYQSLGVILLEGDINDHETLVKAIKQVDIVICAAGRLLIEDQVKIIKAIKEAGNVKKFFPSEFGLDVDRHDAVEPVRQVFEEKASIRRVIEAEGVPYTYLCCHAFTGYFLRNLAQLDATDPPRDKVVILGDGNVKGAYVTEADVGTFTIRAANDPNTLNKAVHIRLPKNYLTQNEVIALWEKKIGKTLEKTYVSEEQVLKDIQESSFPHNYLLALYHSQQIKGDAVYEIDPAKDIEASEAYPDVTYTTADEYLNQFV 318
                                    12        22        32     |   -     |  52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312      
                                                              38        48                                                                                                                                                                                                                                                                              


Chain B from PDB  Type:PROTEIN  Length:307
 aligned with IFR_MEDSA | P52575 from UniProtKB/Swiss-Prot  Length:318

    Alignment length:316
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312      
            IFR_MEDSA     3 TENKILILGPTGAIGRHIVWASIKAGNPTYALVRKTPGNVNKPKLITAANPETKEELIDNYQSLGVILLEGDINDHETLVKAIKQVDIVICAAGRLLIEDQVKIIKAIKEAGNVKKFFPSEFGLDVDRHEAVEPVRQVFEEKASIRRVIEAEGVPYTYLCCHAFTGYFLRNLAQLDTTDPPRDKVVILGDGNVKGAYVTEADVGTFTIRAANDPNTLNKAVHIRLPENYLTQNEVIALWEKKIGKTLEKTYVSEEQVLKDIQESSFPHNYLLALYHSQQIKGDAVYEIDPAKDIEASEAYPDVTYTTADEYLNQFV 318
               SCOP domains d2gasb_ B: automated matches                                                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 2gasB01 B:3-162,B:202-224,B:289-302          NAD(P)-binding Rossmann-like Domain                                                                                2gasB02 B:163-201,B:225-288,B:303-318  2gasB01                2gasB02 B:163-201,B:225-288,B:303-318                           2gasB01       2gasB02          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeee.....hhhhhhhhhhhhh..eeeee...---------....hhhhhhhhhhhhhhh..eeee....hhhhhhhhhh...eeee.....hhhhhhhhhhhhhhhh...eee...............hhhhhhhhhhhhhhhhhhh....eeee..ee...................eeeee......eeeehhhhhhhhhhhhhhhhhhh.eeee..hhh.eehhhhhhhhhhhhhh...eeeeehhhhhhhhhhhh..hhhhhhhhhhhhhh............eeehhhhh......hhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2gas B   3 TENKILILGPTGAIGRHIVWASIKAGNPTYALVRKT---------ITAANPETKEELIDNYQSLGVILLEGDINDHETLVKAIKQVDIVICAAGRLLIEDQVKIIKAIKEAGNVKKFFPSEFGLDVDRHDAVEPVRQVFEEKASIRRVIEAEGVPYTYLCCHAFTGYFLRNLAQLDATDPPRDKVVILGDGNVKGAYVTEADVGTFTIRAANDPNTLNKAVHIRLPKNYLTQNEVIALWEKKIGKTLEKTYVSEEQVLKDIQESSFPHNYLLALYHSQQIKGDAVYEIDPAKDIEASEAYPDVTYTTADEYLNQFV 318
                                    12        22        32     |   -     |  52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312      
                                                              38        48
   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  (2, 4)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (IFR_MEDSA | P52575)
molecular function
    GO:0047526    2'-hydroxyisoflavone reductase activity    Catalysis of the reaction: vestitone + NADP+ = 2'-hydroxyformononetin + NADPH + H+.
    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.
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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  Cis Peptide Bonds
    Glu A:135 - Pro A:136   [ RasMol ]  
    Glu B:135 - Pro B:136   [ RasMol ]  
    Phe A:268 - Pro A:269   [ RasMol ]  
    Phe B:268 - Pro B:269   [ RasMol ]  
 
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