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(-) Description

Title :  CRYSTAL STRUCTURE OF A MUTANT R75A IN KETOSTEROID ISOMERASE FROM PSEDOMONAS PUTIDA BIOTYPE B
 
Authors :  G. H. Nam, D. H. Kim, D. S. Jang, G. Choi, N. C. Ha, B. H. Oh, K. Y. Choi
Date :  19 Feb 00  (Deposition) - 24 Apr 00  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Ksi, R75A, Isomerase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. H. Kim, G. H. Nam, D. S. Jang, G. Choi, S. Joo, J. S. Kim, B. H. Oh, K. Y. Choi
Roles Of Active Site Aromatic Residues In Catalysis By Ketosteroid Isomerase From Pseudomonas Putida Biotype B.
Biochemistry V. 38 13810 1999
PubMed-ID: 10529226  |  Reference-DOI: 10.1021/BI991040M
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - DELTA-5-3-KETOSTEROID ISOMERASE
    ChainsA
    EC Number5.3.3.1
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Cell LineBL21(DE3)
    Expression System PlasmidPKK
    Expression System Taxid562
    Expression System Vector TypePLASMID
    MutationYES
    Organism ScientificPSEUDOMONAS PUTIDA
    Organism Taxid303
    StrainBIOTYPE B
    SynonymKSI, STEROID DELTA-ISOMERASE

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1C7H)

(-) Sites  (0, 0)

(no "Site" information available for 1C7H)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1C7H)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Asp A:40 -Pro A:41

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1C7H)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1C7H)

(-) Exons   (0, 0)

(no "Exon" information available for 1C7H)

(-) 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    
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SAPs(SNPs) PROSITE motifs Exons
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Chain A from PDB  Type:PROTEIN  Length:123
 aligned with SDIS_PSEPU | P07445 from UniProtKB/Swiss-Prot  Length:131

    Alignment length:126
                                    11        21        31        41        51        61        71        81        91       101       111       121      
           SDIS_PSEPU     2 NLPTAQEVQGLMARYIELVDVGDIEAIVQMYADDATVEDPFGQPPIHGREQIAAFYRQGLGGGKVRACLTGPVRASHNGCGAMPFRVEMVWNGQPCALDVIDVMRFDEHGRIQTMQAYWSEVNLSV 127
               SCOP domains d1c7ha_ A: Delta-5-3-ketosteroid isomerase, steroid delta-is   omerase, KSI                                                    SCOP domains
               CATH domains 1c7hA00 A:2-127  [code=3.10.450.50, no name defined]                                                                           CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhhh..hhhhhhh.....eee..........hhhhhhhhhhh.---..eeee...eee....eeeeeeeee..hhh...eeeeeeeeee.....eeeeeee........ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1c7h A   2 NLPTAQEVQGLMARYIELVDVGDIEAIVQMYADDATVEDPFGQPPIHGREQIAAFYRQGL---KVRACLTGPVAASHNGCGAMPFRVEMVWNGQPCALDVIDVMRFDEHGRIQTMQAYWSEVNLSV 127
                                    11        21        31        41        51        61   |    71        81        91       101       111       121      
                                                                                      61  65                                                              

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  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, 1)

Asymmetric Unit

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1C7H)

(-) Gene Ontology  (4, 4)

Asymmetric Unit(hide GO term definitions)
Chain A   (SDIS_PSEPU | P07445)
molecular function
    GO:0016853    isomerase activity    Catalysis of the geometric or structural changes within one molecule. Isomerase is the systematic name for any enzyme of EC class 5.
    GO:0004769    steroid delta-isomerase activity    Catalysis of the reaction: a 3-oxo-delta(5)-steroid = a 3-oxo-delta(4)-steroid.
biological process
    GO:0006629    lipid metabolic process    The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
    GO:0008202    steroid metabolic process    The chemical reactions and pathways involving steroids, compounds with a 1,2,cyclopentanoperhydrophenanthrene nucleus.

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    Asp A:40 - Pro A:41   [ RasMol ]  
 
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 Related Entries

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

UniProtKB/Swiss-Prot
        SDIS_PSEPU | P074451cqs 1dmm 1dmn 1dmq 1e3r 1e3v 1e97 1ea2 1gs3 1k41 1ogx 1oh0 1oho 1opy 1vzz 1w00 1w01 1w02 1w6y 2inx 2pzv 3cpo 3fzw 3ipt 3ows 3owu 3owy 3ox9 3oxa 3rgr 3sed 3t8n 3vgn 3vsy 4cdl 4k1u 4k1v 5ai1 5d81 5d82 5d83 5g2g 5kp1 5kp3 5kp4

(-) Related Entries Specified in the PDB File

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