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(-) Description

Title :  CHALONE SYNTHASE (N336A MUTANT COMPLEXED WITH COA)
 
Authors :  J. M. Jez, J. L. Ferrer, M. E. Bowman, R. A. Dixon, J. P. Noel
Date :  13 Oct 99  (Deposition) - 03 Feb 00  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.15
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Polypetide Synthase, Flavonoid Biosynthesis, Malonyl-Coa Decarboxylation, Site-Directed Mutant, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. M. Jez, J. L. Ferrer, M. E. Bowman, R. A. Dixon, J. P. Noel
Dissection Of Malonyl-Coenzyme A Decarboxylation From Polyketide Formation In The Reaction Mechanism Of A Plant Polyketide Synthase.
Biochemistry V. 39 890 2000
PubMed-ID: 10653632  |  Reference-DOI: 10.1021/BI991489F

(-) Compounds

Molecule 1 - CHALCONE SYNTHASE
    ChainsA
    EC Number2.3.1.74
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Expression System VectorPHIS8 (VARIANT OF PET-28B)
    MutationYES
    Organism ScientificMEDICAGO SATIVA
    Organism Taxid3879

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 3)

Asymmetric Unit (3, 3)
No.NameCountTypeFull Name
1COA1Ligand/IonCOENZYME A
2CSD1Mod. Amino Acid3-SULFINOALANINE
3SO41Ligand/IonSULFATE ION
Biological Unit 1 (3, 6)
No.NameCountTypeFull Name
1COA2Ligand/IonCOENZYME A
2CSD2Mod. Amino Acid3-SULFINOALANINE
3SO42Ligand/IonSULFATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARESER A:3 , VAL A:4 , SER A:5 , ARG A:385BINDING SITE FOR RESIDUE SO4 A 391
2AC2SOFTWARELYS A:55 , ARG A:58 , MET A:59 , LYS A:62 , LEU A:206 , LEU A:267 , VAL A:271 , PRO A:272 , GLY A:305 , GLY A:306 , PRO A:307 , ALA A:308 , HOH A:567BINDING SITE FOR RESIDUE COA A 390

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1D6H)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Met A:137 -Pro A:138
2Gly A:376 -Leu A:377

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1D6H)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHALCONE_SYNTHPS00441 Chalcone and stilbene synthases active site.CHS2_MEDSA156-172  1A:156-172
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHALCONE_SYNTHPS00441 Chalcone and stilbene synthases active site.CHS2_MEDSA156-172  2A:156-172

(-) Exons   (0, 0)

(no "Exon" information available for 1D6H)

(-) 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:387
 aligned with CHS2_MEDSA | P30074 from UniProtKB/Swiss-Prot  Length:389

    Alignment length:387
                                    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       322       332       342       352       362       372       382       
           CHS2_MEDSA     3 SVSEIRKAQRAEGPATILAIGTANPANCVEQSTYPDFYFKITNSEHKTELKEKFQRMCDKSMIKRRYMYLTEEILKENPNVCEYMAPSLDARQDMVVVEVPRLGKEAAVKAIKEWGQPKSKITHLIVCTTSGVDMPGADYQLTKLLGLRPYVKRYMMYQQGCFAGGTVLRLAKDLAENNKGARVLVVCSEVTAVTFRGPSDTHLDSLVGQALFGDGAAALIVGSDPVPEIEKPIFEMVWTAQTIAPDSEGAIDGHLREAGLTFHLLKDVPGIVSKNITKALVEAFEPLGISDYNSIFWIAHPGGPAILDQVEQKLALKPEKMNATREVLSEYGNMSSACVLFILDEMRKKSTQNGLKTTGEGLEWGVLFGFGPGLTIETVVLRSVAI 389
               SCOP domains d1d6ha1 A:3-235 Chalcone synthase                                                                                                                                                                                                        d1d6ha2 A:236-389 Chalcone synthase                                                                                                                        SCOP domains
               CATH domains 1d6hA01 A:3-235  [code=3.40.47.10, no name defined]                                                                                                                                                                                      1d6hA02 A:236-388  [code=3.40.47.10, no name defined]                                                                                                    - CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhh.....eeeeeeee....eee..hhhhhhhhhh....hhhhhhhhhhhhhhh...eee...hhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh.eeeeee.......hhhhhhhhhhh.....eeeeee....hhhhhhhhhhhhhhhhh...eeeeeeeehhhhh.......hhhhhhhhhhh..eeeeeeee...........eeeeeeeeee........eeeee..eeeee...hhhhhhhhhhhhhhhhhhhhhh..hhhhheeee...hhhhhhhhhhhhh.hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhh..........eeeeeeee...eeeeeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------CHALCONE_SYNTH   ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1d6h A   3 SVSEIRKAQRAEGPATILAIGTANPANCVEQSTYPDFYFKITNSEHKTELKEKFQRMCDKSMIKRRYMYLTEEILKENPNVCEYMAPSLDARQDMVVVEVPRLGKEAAVKAIKEWGQPKSKITHLIVCTTSGVDMPGADYQLTKLLGLRPYVKRYMMYQQGcFAGGTVLRLAKDLAENNKGARVLVVCSEVTAVTFRGPSDTHLDSLVGQALFGDGAAALIVGSDPVPEIEKPIFEMVWTAQTIAPDSEGAIDGHLREAGLTFHLLKDVPGIVSKNITKALVEAFEPLGISDYNSIFWIAHPGGPAILDQVEQKLALKPEKMNATREVLSEYGAMSSACVLFILDEMRKKSTQNGLKTTGEGLEWGVLFGFGPGLTIETVVLRSVAI 389
                                    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       322       332       342       352       362       372       382       
                                                                                                                                                                                           164-CSD                                                                                                                                                                                                                             

   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

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1D6H)

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)
Chain A   (CHS2_MEDSA | P30074)
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:0016210    naringenin-chalcone synthase activity    Catalysis of the reaction: 3 malonyl-CoA + 4-coumaroyl-CoA = 4 CoA + naringenin chalcone + 3 CO2.
    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).
    GO:0016747    transferase activity, transferring acyl groups other than amino-acyl groups    Catalysis of the transfer of an acyl group, other than amino-acyl, from one compound (donor) to another (acceptor).
biological process
    GO:0009058    biosynthetic process    The chemical reactions and pathways resulting in the formation of substances; typically the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
    GO:0009715    chalcone biosynthetic process    The chemical reactions and pathways resulting in the formation of chalcone, phenyl steryl ketone or its hydroxylated derivatives.
    GO:0009813    flavonoid biosynthetic process    The chemical reactions and pathways resulting in the formation of flavonoids, a group of phenolic derivatives containing a flavan skeleton.
    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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  2.3.1.74
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 Related Entries

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

UniProtKB/Swiss-Prot
        CHS2_MEDSA | P300741bi5 1bq6 1cgk 1cgz 1chw 1cml 1d6f 1d6i 1i86 1i88 1i89 1i8b 1jwx 1u0v 1u0w

(-) Related Entries Specified in the PDB File

1bi5 CHS APOENZYME
1bq6 CHS-COA COMPLEX
1cgk CHS-NARINGENIN COMPLEX
1cgz CHS-RESVERATROL COMPLEX
1chw CHS(C164S)-HEXANOYL-COA COMPLEX
1cml CHS(C164S)-ACETYL-COA COMPLEX