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(-) Description

Title :  STRUCTURAL AND FUNCTIONAL ANALYSIS OF TETRACENOMYCIN F2 CYCLASE FROM STREPTOMYCES GLAUCESCENS: A TYPE-II POLYKETIDE CYCLASE
 
Authors :  T. B. Thompson, K. Katayama, K. Watanabe, C. R. Hutchinson, I. Rayment
Date :  25 Jun 04  (Deposition) - 03 Aug 04  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Dimeric ??? Ferredoxin-Like Fold Tetracenomycin C Biosynthesis, Unknown Function (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. B. Thompson, K. Katayama, K. Watanabe, C. R. Hutchinson, I. Rayment
Structural And Functional Analysis Of Tetracenomycin F2 Cyclase From Streptomyces Glaucescens. A Type Ii Polyketide Cyclase.
J. Biol. Chem. V. 279 37956 2004
PubMed-ID: 15231835  |  Reference-DOI: 10.1074/JBC.M406144200

(-) Compounds

Molecule 1 - TETRACENOMYCIN POLYKETIDE SYNTHESIS PROTEIN TCMI
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PET15B
    Gene: TCMI
    Organism Scientific: STREPTOMYCES GLAUCESCENS
    Organism Taxid: 1907

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (2x): A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1SO41Ligand/IonSULFATE ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1SO42Ligand/IonSULFATE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:26 , ARG A:40 , LEU A:63BINDING SITE FOR RESIDUE SO4 A 250

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

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(-) Exons   (0, 0)

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(-) Sequences/Alignments

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SAPs(SNPs) PROSITE motifs Exons
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Chain A from PDB  Type:PROTEIN  Length:106
 aligned with TCMI_STRGA | P39890 from UniProtKB/Swiss-Prot  Length:109

    Alignment length:106
                                    11        21        31        41        51        61        71        81        91       101      
           TCMI_STRGA     2 AYRALMVLRMDPADAEHVAAAFAEHDTTELPLEIGVRRRVLFRFHDLYMHLIEADDDIMERLYQARSHPLFQEVNERVGQYLTPYAQDWEELKDSKAEVFYSWTAP 107
               SCOP domains d1tuwa_ A: Tetracenomycin polyketide synthesis protein TcmI                                                SCOP domains
               CATH domains 1tuwA00 A:2-107 Dimeric alpha+beta barrel.                                                                 CATH domains
               Pfam domains ---------Cyclase_polyket-1tuwA01 A:11-106                                                                - Pfam domains
         Sec.struct. author .eeeeeeeee...hhhhhhhhhhhhh..hhhhhhh..eeeeeee..eeeeeeee...hhhhhhhhhhhhhhhhhhhhhhh.eee......hhhhhh.......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------- Transcript
                 1tuw A   2 AYRALMVLRMDPADAEHVAAAFAEHDTTELPLEIGVRRRVLFRFHDLYMHLIEADDDIMERLYQARSHPLFQEVNERVGQYLTPYAQDWEELKDSKAEVFYSWTAP 107
                                    11        21        31        41        51        61        71        81        91       101
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 Classification and Annotation

(-) SCOP Domains  (1, 1)

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

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric Unit
(-)
Clan: no clan defined [family: Cyclase_polyket] (1)

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A   (TCMI_STRGA | P39890)
molecular function
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
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:0030639    polyketide biosynthetic process    The chemical reactions and pathways resulting in the formation of polyketides, any of a diverse group of natural products synthesized via linear poly-beta-ketones, which are themselves formed by repetitive head-to-tail addition of acetyl (or substituted acetyl) units indirectly derived from acetate (or a substituted acetate) by a mechanism similar to that for fatty acid biosynthesis but without the intermediate reductive steps.

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