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(-) Description

Title :  THE FIRST KETOREDUCTASE OF THE ERYTHROMYCIN SYNTHASE (CRYSTAL FORM 1)
 
Authors :  A. T. Keatinge-Clay, R. M. Stroud
Date :  18 Jan 06  (Deposition) - 04 Apr 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.81
Chains :  Asym./Biol. Unit :  A
Keywords :  Short Chain Dehydrogenase/Reductase, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. T. Keatinge-Clay, R. M. Stroud
The Structure Of A Ketoreductase Determines The Organization Of The Beta-Carbon Processing Enzymes Of Modular Polyketide Synthases
Structure V. 14 737 2006
PubMed-ID: 16564177  |  Reference-DOI: 10.1016/J.STR.2006.01.009
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ERYTHROMYCIN SYNTHASE, ERYAI
    Chains: A
    EC Number: 1.1.1.100
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET28B
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: RESIDUES 1444-1925
    Gene: ERYAI
    Organism Scientific: SACCHAROPOLYSPORA ERYTHRAEA
    Organism Taxid: 1836

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1NDP1Ligand/IonNADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDEPHOSPHATE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHOH A:53 , HOH A:62 , HOH A:126 , GLY A:1672 , THR A:1674 , GLY A:1675 , GLY A:1676 , VAL A:1677 , SER A:1697 , ARG A:1698 , SER A:1699 , GLY A:1700 , ALA A:1703 , CYS A:1725 , ASP A:1726 , VAL A:1727 , THR A:1728 , ALA A:1752 , ALA A:1753 , ALA A:1754 , ALA A:1775 , LYS A:1776 , PHE A:1798 , SER A:1799 , PHE A:1801 , TYR A:1813 , MET A:1847BINDING SITE FOR RESIDUE NDP A 201

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2FR0)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2FR0)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2FR0)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2FR0)

(-) Exons   (0, 0)

(no "Exon" information available for 2FR0)

(-) 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:468
 aligned with ERYA1_SACER | Q03131 from UniProtKB/Swiss-Prot  Length:3491

    Alignment length:468
                                  1404      1414      1424      1434      1444      1454      1464      1474      1484      1494      1504      1514      1524      1534      1544      1554      1564      1574      1584      1594      1604      1614      1624      1634      1644      1654      1664      1674      1684      1694      1704      1714      1724      1734      1744      1754      1764      1774      1784      1794      1804      1814      1824      1834      1844      1854        
         ERYA1_SACER   1395 DEVSALRYRIEWRPTGAGEPARLDGTWLVAKYAGTADETSTAAREALESAGARVRELVVDARCGRDELAERLRSVGEVAGVLSLLAVDEAEPEEAPLALASLADTLSLVQAMVSAELGCPLWTVTESAVATGPFERVRNAAHGALWGVGRVIALENPAVWGGLVDVPAGSVAELARHLAAVVSGGAGEDQLALRADGVYGRRWVRAAAPATDDEWKPTGTVLVTGGTGGVGGQIARWLARRGAPHLLLVSRSGPDADGAGELVAELEALGARTTVAACDVTDRESVRELLGGIGDDVPLSAVFHAAATLDDGTVDTLTGERIERASRAKVLGARNLHELTRELDLTAFVLFSSFASAFGAPGLGGYAPGNAYLDGLAQQRRSDGLPATAVAWGTWAGSGMAEGAVADRFRRHGVIEMPPETACRALQNALDRAEVCPIVIDVRWDRFLLAYTAQRPTRLFDEIDDARR 1862
               SCOP domains d2fr0a2 A:1448-1656 Erythromycin synthase, eryAI, 1st ketoreductase module                                                                                                                                       d2fr0a1 A:1657-1915 Erythromycin synthase, eryAI, 1st ketoreductase module                                                                                                                                                                                          SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ......eeeeeeee...........eeeeeee...hhhhhhhhhhhhhh...eeeeeee....hhhhhhhhhh......eeee...........hhhhhhhhhhhhhhhhhhhhhh....eeeeee............hhhhhhhhhhhhhhhhhh...eeeeeee....hhhhhhhhhhhhh......eeeee..eeeeeeeee..............eeeee...hhhhhhhhhhhhhhh..eeeeee.hhhhh.hhhhhhhhhhh...eeeeee....hhhhhhhhhh.......eeeeee........hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eeeeeeehhhhh.......hhhhhhhhhhhhhhhhhh....eeeee...........hhhhhhhh..ee..hhhhhhhhhhhhhhh.....ee.eehhhhhhhhhh..........hhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                2fr0 A 1448 DEVSALRYRIEWRPTGAGEPARLDGTWLVAKYAGTADETSTAAREALESAGARVRELVVDARCGRDELAERLRSVGEVAGVLSLLAVDEAEPEEAPLALASLADTLSLVQAMVSAELGCPLWTVTESAVATGPFERVRNAAHGALWGVGRVIALENPAVWGGLVDVPAGSVAELARHLAAVVSGGAGEDQLALRADGVYGRRWVRAAAPATDDEWKPTGTVLVTGGTGGVGGQIARWLARRGAPHLLLVSRSGPDADGAGELVAELEALGARTTVAACDVTDRESVRELLGGIGDDVPLSAVFHAAATLDDGTVDTLTGERIERASRAKVLGARNLHELTRELDLTAFVLFSSFASAFGAPGLGGYAPGNAYLDGLAQQRRSDGLPATAVAWGTWAGSGMAEGPVADRFRRHGVIEMPPETACRALQNALDRAEVCPIVIDVRWDRFLLAYTAQRPTRLFDEIDDARR 1915
                                  1457      1467      1477      1487      1497      1507      1517      1527      1537      1547      1557      1567      1577      1587      1597      1607      1617      1627      1637      1647      1657      1667      1677      1687      1697      1707      1717      1727      1737      1747      1757      1767      1777      1787      1797      1807      1817      1827      1837      1847      1857      1867      1877      1887      1897      1907
   Legend:   → Mismatch (orange background)
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    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
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  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/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2FR0)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2FR0)

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (ERYA1_SACER | Q03131)
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:0047879    erythronolide synthase activity    Catalysis of the reaction: 6 malonyl-CoA + propionyl-CoA = 7 CoA + 6-deoxyerythronolide B.
    GO:0031177    phosphopantetheine binding    Interacting selectively and non-covalently with phosphopantetheine, the vitamin pantetheine 4'-(dihydrogen phosphate).
    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:0016746    transferase activity, transferring acyl groups    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor).
biological process
    GO:0017000    antibiotic biosynthetic process    The chemical reactions and pathways resulting in the formation of an antibiotic, a substance produced by or derived from certain fungi, bacteria, and other organisms, that can destroy or inhibit the growth of other microorganisms.
    GO:0033068    macrolide biosynthetic process    The chemical reactions and pathways leading to the formation of macrolides, any of a large group of polyketide compounds that contain a large lactone ring with few or no double bonds and no nitrogen atoms, linked glycosidically to one or more sugar groups. The macrolides include the carbomycins, the erythromycins, oleandomycin, oligomycins, and the spiramycins, and act as antibiotics, mainly against Gram-positive bacteria.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.

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 Related Entries

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

UniProtKB/Swiss-Prot
        ERYA1_SACER | Q03131: 2fr1 2ju1 2ju2

(-) Related Entries Specified in the PDB File

2fr1 THE FIRST KETOREDUCTASE OF THE ERYTHROMYCIN SYNTHASE (CRYSTAL FORM 2)
2fro MODEL OF THE BETA-CARBON PROCESSING ENZYMES AND ACYL CARRIER PROTEIN OF MODULAR POLYKETIDE SYNTHASES