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(-) Description

Title :  STRUCTURE OF A 37-FOLD MUTANT OF HALOHYDRIN DEHALOGENASE (HHEC) BOUND TO ETHYL (R)-4-CYANO-3-HYDROXYBUTYRATE
 
Authors :  R. J. Floor, M. Schallmey, B. Hauer, M. Breuer, P. A Jekel, H. J. Wijma, B. W. Dijkstra, D. B. Janssen
Date :  28 Jan 13  (Deposition) - 20 Feb 13  (Release) - 15 May 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.49
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Thermostability, Synergistic Mutations, Coupled Mutations, Proline- Induced, Backbone Changes, Enantioselectivity Changes, Directed Evolution, Protein Engineering, Short-Chain Dehydrogenase/Reductase Enzyme Superfamily, Cyanolysis, Dehalogenase, Atorvastatin Synthesis, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. Schallmey, R. J. Floor, B. Hauer, M. Breuer, P. A. Jekel, H. J. Wijma, B. W. Dijkstra, D. B. Janssen
Biocatalytic And Structural Properties Of A Highly Engineered Halohydrin Dehalogenase.
Chembiochem V. 14 870 2013
PubMed-ID: 23585096  |  Reference-DOI: 10.1002/CBIC.201300005

(-) Compounds

Molecule 1 - HALOHYDRIN DEHALOGENASE
    ChainsA, B
    EC Number4.5.1.-
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPBAD-HHEC-2360
    Expression System StrainBL21
    Expression System Taxid469008
    Expression System Vector TypePBAD
    FragmentHALOHYDRIN DEHALOGENASE HHEC
    GeneHHEC
    MutationYES
    Organism CommonAGROBACTERIUM TUMEFACIENS
    Organism ScientificRHIZOBIUM RADIOBACTER
    Organism Taxid358
    Other DetailsTHIS ENZYME IS A RESULT OF A DIRECTED EVOLUTION STUDY. IT CONTAINS 37 MUTATIONS, COMPARED TO ITS PARENT

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (2x)AB

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (2, 2)
No.NameCountTypeFull Name
11H11Ligand/IonETHYL (3R)-4-CYANO-3-HYDROXYBUTANOATE
2CL1Ligand/IonCHLORIDE ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
11H12Ligand/IonETHYL (3R)-4-CYANO-3-HYDROXYBUTANOATE
2CL-1Ligand/IonCHLORIDE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:12 , SER A:132 , ALA A:134 , TRP A:139 , LEU A:142 , TYR A:145 , PRO A:175 , ASN A:176 , GLY A:177 , VAL A:178 , TYR A:187 , TRP A:249 , HOH A:403BINDING SITE FOR RESIDUE 1H1 A 301
2AC2SOFTWAREASN B:176 , GLY B:177 , VAL B:178BINDING SITE FOR RESIDUE CL B 301

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4IXT)

(-) Cis Peptide Bonds  (6, 6)

Asymmetric Unit
No.Residues
1Tyr A:185 -Tyr A:186
2Glu A:190 -Pro A:191
3Phe A:243 -Pro A:244
4Tyr B:185 -Tyr B:186
5Glu B:190 -Pro B:191
6Phe B:243 -Pro B:244

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4IXT)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4IXT)

(-) Exons   (0, 0)

(no "Exon" information available for 4IXT)

(-) 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:249
                                                                                                                                                                                                                                                                                         
               SCOP domains d4ixta_ A: automated matches                                                                                                                                                                                                                              SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeee......hhhhhhhhhhhhh.eeee.hhhhhhhhhhhhhhhhh...ee....hhhhhhhhhhhhhh...eeeee........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..eeeee.hhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee............hhhhhh.hhhhhhhhhhhh......hhhhhhhhhhhhhh..hhhhh..eeee........... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4ixt A   2 STAIVTNVKHFGGMGSALRLSEAGHTVACHDESFKHQDELEAFAETYPQLIPMSEQEPVELIEAVTSALGHVDILVSNDIAPVEWRPIDKYAVEDYRDMVEALQIKPFALANAVASQMKRRKSGHIIFITSAASFGPWKELSTYASARAGASALANALSKELGEHNIPVFAIAPNGVDSGDSPYYYPSEPWKTSPEHVAWVRKYTALQRLGTQKELGELVTFLASGSCDYLTGQVFWLAGGFPVVERWP 250
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241         

Chain B from PDB  Type:PROTEIN  Length:245
                                                                                                                                                                                                                                                                                     
               SCOP domains d4ixtb_ B: automated matches                                                                                                                                                                                                                          SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeee......hhhhhhhhhhhh..eeee.hhhhhhhhhhhhhhhhh..eee....hhhhhhhhhhhhhh...eeeee........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeeee...........hhhhhhhhhhhhhhhhhhhhhhhhhh..eeeeee............hhhhhh.hhhhhhhhhhhh......hhhhhhhhhhhhhh..hhhhh..eeee....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4ixt B   2 STAIVTNVKHFGGMGSALRLSEAGHTVACHDESFKHQDELEAFAETYPQLIPMSEQEPVELIEAVTSALGHVDILVSNDIAPVEWRPIDKYAVEDYRDMVEALQIKPFALANAVASQMKRRKSGHIIFITSAASFGPWKELSTYASARAGASALANALSKELGEHNIPVFAIAPNGVDSGDSPYYYPSEPWKTSPEHVAWVRKYTALQRLGTQKELGELVTFLASGSCDYLTGQVFWLAGGFPVV 246
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241     

   Legend:   → Mismatch (orange background)
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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 Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4IXT)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4IXT)

(-) Gene Ontology  (0, 0)

Asymmetric Unit(hide GO term definitions)
    (no "Gene Ontology" information available for 4IXT)

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 Related Entries

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

UniProtKB/TrEMBL
        Q93D82_RHIRD | Q93D821pwx 1pwz 1px0 1zmt 1zo8 3zn2 4ixw 4iy1 5kvc 5kwe

(-) Related Entries Specified in the PDB File

4ixw HHEC 2360 BOUND TO ETHYL (2S)-OXIRAN-2-YLACETATE
4iy1 STRUCTURE OF A 37-FOLD MUTANT OF HALOHYDRIN DEHALOGENASE (HHEC) WITH CHLORIDE BOUND