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(-) Description

Title :  SULFITE REDUCTASE HEMOPROTEIN IN COMPLEX WITH A PARTIALLY OXIDIZED SULFIDE SPECIES
 
Authors :  B. R. Crane, E. D. Getzoff
Date :  11 Jul 97  (Deposition) - 14 Jan 98  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.40
Chains :  Asym./Biol. Unit :  A
Keywords :  Oxidoreductase, Siroheme Feiii, [4Fe-4S] +2, Sulfide Complex, Intermediate (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. R. Crane, L. M. Siegel, E. D. Getzoff
Probing The Catalytic Mechanism Of Sulfite Reductase By X-Ray Crystallography: Structures Of The Escherichia Coli Hemoprotein In Complex With Substrates, Inhibitors, Intermediates, And Products.
Biochemistry V. 36 12120 1997
PubMed-ID: 9315849  |  Reference-DOI: 10.1021/BI971066I
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - SULFITE REDUCTASE HEMOPROTEIN
    Chains: A
    EC Number: 1.8.1.2
    Engineered: YES
    Expression System: SALMONELLA TYPHIMURIUM
    Expression System Gene: CYSIJ
    Expression System Plasmid: PJYW613
    Expression System Strain: CYSI68
    Expression System Taxid: 602
    Gene: CYSIJ
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 37762
    Other Details: PBR322 DERIVATIVE CONTAINING ESCHERICHIA COLI CYSIJ AND S. TYPHIMURIUM CYSG UNDER CONTROL OF THE CYSJIH PROMOTOR EXPRESSED IN A S. TYPHIMURIUM CYSI AUXOTROPH
    Strain: B
    Synonym: SIRHP

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 4)

Asymmetric/Biological Unit (4, 4)
No.NameCountTypeFull Name
1NA1Ligand/IonSODIUM ION
2SF41Ligand/IonIRON/SULFUR CLUSTER
3SRM1Ligand/IonSIROHEME
4SX1Ligand/IonSULFUR OXIDE

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:362 , ASN A:395 , GLN A:396 , ASN A:397 , HOH A:832BINDING SITE FOR RESIDUE NA A 590
2AC2SOFTWARECYS A:434 , CYS A:440 , ALA A:443 , THR A:477 , GLY A:478 , CYS A:479 , ASN A:481 , CYS A:483 , SRM A:580BINDING SITE FOR RESIDUE SF4 A 575
3AC3SOFTWARELEU A:81 , ARG A:83 , ARG A:113 , THR A:115 , ASN A:116 , ARG A:117 , THR A:119 , GLN A:121 , HIS A:123 , ARG A:214 , LYS A:215 , LYS A:217 , LEU A:257 , SER A:258 , LYS A:306 , GLN A:396 , ALA A:433 , CYS A:434 , VAL A:435 , THR A:439 , CYS A:440 , PRO A:441 , ASN A:481 , GLY A:482 , CYS A:483 , ARG A:485 , SF4 A:575 , SX A:585 , HOH A:623 , HOH A:630 , HOH A:648 , HOH A:696 , HOH A:716 , HOH A:743 , HOH A:744 , HOH A:810 , HOH A:813 , HOH A:835 , HOH A:876 , HOH A:927BINDING SITE FOR RESIDUE SRM A 580
4AC4SOFTWAREARG A:153 , LYS A:215 , LYS A:217 , SRM A:580 , HOH A:744BINDING SITE FOR RESIDUE SX A 585

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 7GEP)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Pro A:223 -Pro A:224
2Phe A:437 -Pro A:438

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 7GEP)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 7GEP)

(-) Exons   (0, 0)

(no "Exon" information available for 7GEP)

(-) 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:469
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
               SCOP domains d7gepa1 A:81-145 Sulfite reductase, domains 1 and 3              d7gepa3 A:149-345 Sulfite reductase hemoprotein (SiRHP), domains 2 and 4                                                                                                           d7gepa2 A:346-425 Sulfite reductase, domains 1 and 3                            d7gepa4 A:426-570 Sulfite reductase hemoprotein (SiRHP), domains 2 and 4                                                                          SCOP domains
               CATH domains 7gepA02 A:81-145,A:341-424 Sulfite Reductase Hemoprotein;Domain 27gepA01 A:149-340 Sulfite Reductase Hemoprotein, domain 1                                                                                                                     7gepA02 A:81-145,A:341-424 Sulfite Reductase Hemoprotein;Domain 2                   7gepA03 A:425-567 Sulfite Reductase Hemoprotein, domain 1                                                                                      --- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author eeeee...eee.hhhhhhhhhhhhhh....eeeee...eeeeeeee..hhhhhhhhhhhh...........eeee.......hhhhhhhhhhhhhhhhhh.............eeeeeee.......hhhhheeeeeeeee..eeeeeeeeee.................eeeeeeee.hhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhh..................eeeee..eeeeeeee...eee.......hhhhhhhhhhhh..eeeee...eeeeeeee..hhhhhhhhhhhh.......hhhhheeee...............hhhhhhhhhhhhhhhh.......eeee........hhhhheeeeeeee..eeeeeee.........eeeeeeeehhhhhhhhhhhhhhhhhhh....hhhhhhhhhh.............. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 7gep A  81 LLRCRLPGGVITTKQWQAIDKFAGENTIYGSIRLTNRQTFQFHGILKKNVKPVHQMLHSVGLDALNDMNRNVLCTSNPYESQLHAEAYEWAKKISEHLLPRTEPILGQTYLPRKFKTTVVIPPQNDIDLHANDMNFVAIAENGKLVGFNLLVGGGLSIEHGNKKTYARTASEFGYLPLEHTLAVAEAVVTTQRDWGNRTDRKNAKTKYTLERVGVETFKAEVERRAGIKFEPIRPYEFTGRGDRIGWVKGIDDNWHLTLFIENGRILDYPARPLKTGLLEIAKIHKGDFRITANQNLIIAGVPESEKAKIEKIAKESGLMNAVTPQRENSMACVSFPTCPLAMAEAERFLPSFIDNIDNLMAKHGVSDEHIVMRVTGCPNGCGRAMLAEVGLVGKAPGRYNLHLGGNRIGTRIPRMYKENITEPEILASLDELIGRWAKEREAGEGFGDFTVRAGIIRPVLDPARDLWD 570
                                    90       100       110       120       130       140    || 153       163       173       183 ||    211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531       541       551       561         
                                                                                          145|                                 185|                                                                                                                                                                                                                                                                                                                                                                              
                                                                                           149                                  204
   Legend:   → Mismatch (orange background)
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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  (2, 4)

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

(-) CATH Domains  (2, 3)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 7GEP)

(-) Gene Ontology  (16, 16)

Asymmetric/Biological Unit(hide GO term definitions)

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