3BCI

Crystal Structure of Staphylococcus aureus DsbA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.81 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.198 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Staphylococcus aureus DsbA Does Not Have a Destabilizing Disulfide: A NEW PARADIGM FOR BACTERIAL OXIDATIVE FOLDING

Heras, B.Kurz, M.Jarrott, R.Shouldice, S.R.Frei, P.Robin, G.Cemazar, M.Thony-Meyer, L.Glockshuber, R.Martin, J.L.

(2008) J Biol Chem 283: 4261-4271

  • DOI: 10.1074/jbc.M707838200
  • Primary Citation of Related Structures:  
    3BD2, 3BCI, 3BCK

  • PubMed Abstract: 
  • In Gram-negative bacteria, the introduction of disulfide bonds into folding proteins occurs in the periplasm and is catalyzed by donation of an energetically unstable disulfide from DsbA, which is subsequently re-oxidized through interaction with Dsb ...

    In Gram-negative bacteria, the introduction of disulfide bonds into folding proteins occurs in the periplasm and is catalyzed by donation of an energetically unstable disulfide from DsbA, which is subsequently re-oxidized through interaction with DsbB. Gram-positive bacteria lack a classic periplasm but nonetheless encode Dsb-like proteins. Staphylococcus aureus encodes just one Dsb protein, a DsbA, and no DsbB. Here we report the crystal structure of S. aureus DsbA (SaDsbA), which incorporates a thioredoxin fold with an inserted helical domain, like its Escherichia coli counterpart EcDsbA, but it lacks the characteristic hydrophobic patch and has a truncated binding groove near the active site. These findings suggest that SaDsbA has a different substrate specificity than EcDsbA. Thermodynamic studies indicate that the oxidized and reduced forms of SaDsbA are energetically equivalent, in contrast to the energetically unstable disulfide form of EcDsbA. Further, the partial complementation of EcDsbA by SaDsbA is independent of EcDsbB and biochemical assays show that SaDsbA does not interact with EcDsbB. The identical stabilities of oxidized and reduced SaDsbA may facilitate direct re-oxidation of the protein by extracellular oxidants, without the need for DsbB.


    Related Citations: 
    • Expression and crystallization of DsbA from Staphylococcus aureus
      Heras, B., Kurz, M., Jarrott, R., Byriel, K.A., Jones, A., Thony-Meyer, L., Martin, J.L.
      (2007) Acta Crystallogr Sect F Struct Biol Cryst Commun 63: 953

    Organizational Affiliation

    Institute for Molecular Bioscience, University of Queensland, Brisbane QLD 4072, Australia. bheras@imb.uq.edu.au



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Disulfide bond protein AA186Staphylococcus aureusMutation(s): 0 
Gene Names: 
AAG41993dsbAbdbDBTN44_14540DD547_02443DQV53_13885E4U00_10560EP54_09745EQ90_00265FA040_02465G0V24_09405G0X12_03650G0Z18_05360G6Y10_06760GO746_01945GO803_03265GO805_14120GO821_09455GO894_10175GO942_08440HMPREF3211_00053NCTC10654_02580NCTC10702_03767NCTC9944_02567RK64_12850SAMEA1029528_02259SAMEA1029547_01522SAMEA1029553_01423SAMEA1964876_00264SAMEA1965205_00084SAMEA1966505_00084SAMEA1969349_00224SAMEA1969845_00525SAMEA1972827_02335SAMEA2076212_00425SAMEA2076218_02435SAMEA2076220_00004SAMEA2076226_02307SAMEA2076463_01592SAMEA2076464_01591SAMEA2076470_00813SAMEA2076472_00392SAMEA2076478_01809SAMEA2076480_01618SAMEA2076481_00051SAMEA2076743_01746SAMEA2076745_00534SAMEA2076746_00084SAMEA2076747_01636SAMEA2076749_00394SAMEA2076751_00244SAMEA2076752_01550SAMEA2076755_00393SAMEA2076756_01587SAMEA2076758_01607SAMEA2076759_00084SAMEA2076761_00084SAMEA2076762_00513SAMEA2076763_01523SAMEA2076764_00708SAMEA2076765_00264SAMEA2077023_00550SAMEA2077025_00084SAMEA2077027_00084SAMEA2077029_00225SAMEA2077031_00225SAMEA2077034_00084SAMEA2077035_01471SAMEA2077039_01607SAMEA2077040_01430SAMEA2077041_00708SAMEA2077044_00264SAMEA2077045_00084SAMEA2077046_00227SAMEA2077293_00243SAMEA2077294_00051SAMEA2077295_00244SAMEA2077297_00084SAMEA2077300_00084SAMEA2077301_00243SAMEA2077302_00244SAMEA2077303_00084SAMEA2077307_00084SAMEA2077832_00243SAMEA2078252_00084SAMEA2078256_01646SAMEA2078307_00084SAMEA2078308_01623SAMEA2078553_01680SAMEA2078558_01637SAMEA2078560_01875SAMEA2078569_00548SAMEA2078570_00243SAMEA2078572_00084SAMEA2078824_01610SAMEA2078837_00245SAMEA2079048_00084SAMEA2079051_00265SAMEA2079277_00084SAMEA2079291_00845SAMEA2079503_00264SAMEA2079512_01175SAMEA2079517_00616SAMEA2079724_02211SAMEA2079727_02428SAMEA2079728_02438SAMEA2079732_02419SAMEA2079742_02353SAMEA2079946_02313SAMEA2079949_02454SAMEA2079951_02366SAMEA2079952_02345SAMEA2079957_00786SAMEA2079958_02398SAMEA2079960_02277SAMEA2079961_02300SAMEA2079968_02316SAMEA2080329_02365SAMEA2080330_02397SAMEA2080334_02428SAMEA2080433_00469SAMEA2080812_00264SAMEA2080898_00243SAMEA2080900_01876SAMEA2080904_00534SAMEA2080913_00244SAMEA2081043_00363SAMEA2081053_00084SAMEA2081054_01671SAMEA2081055_00084SAMEA2081060_00084SAMEA2081213_00614SAMEA2081218_02399SAMEA2081341_02216SAMEA2081342_02407SAMEA2081349_00424SAMEA2081359_02370SAMEA2081362_02312SAMEA2081468_01665SAMEA2081474_01665SAMEA2081475_01708SAMEA2081476_01352SAMEA2081479_01532SAMEA2081480_00246SAMEA2081560_00264SAMEA2081561_00531SAMEA2081564_00226SAMEA2081567_00084SAMEA2081568_00243SAMEA2081569_00221SAMEA2081570_00228SAMEA2081571_00226SAMEA2081572_00264SAMEA2081573_00051SAMEA2081575_01722SAMEA2081577_00084SAMEA2081578_01622SAMEA2081579_00243SAMEA2081581_00264SAMEA2081582_00521SAMEA2081673_00423SAMEA2081674_00739SAMEA958766_01931SAMEA958770_00702SAMEA958772_00324SAMEA958778_02144SAMEA958779_01464SAMEA958785_00325SAMEA958793_00324SAMEA958798_02126SAMEA958804_00321SAMEA958810_00051SAMEA958836_00716SAMEA958838_01074SAMEA958845_01935SAMEA958846_02436SAMEA958848_00254SAMEA958855_01196SAMEA958858_00264SAMEA958870_01402SAMEA958898_01281SAMEA958906_00802SAMEA958924_00326SAMEA958925_00327SAMEA958951_00729SAMEA958953_00324SAMEA958961_01033SAMEA958979_02091SAMEA958987_01360SAMEA958995_00003

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Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.81 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.198 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.099α = 90
b = 72.099β = 90
c = 92.098γ = 120
Software Package:
Software NamePurpose
d*TREKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection
d*TREKdata reduction
SOLVEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-12-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance