Characterisation of complex formation between members of the Mycobacterium tuberculosis complex CFP-10/ESAT-6 protein family: Towards an understanding of the rules governing complex formation and thereby functional flexibility

  • Kirsty L. Lightbody
  • , Philip S. Renshaw
  • , Michelle L. Collins
  • , Rebecca L. Wright
  • , Debbie M. Hunt
  • , Stephen V. Gordon
  • , R. Glyn Hewinson
  • , Roger S. Buxton
  • , Richard A. Williamson
  • , Mark D. Carr

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

We have previously shown that the secreted M. tuberculosis complex proteins CFP-10 and ESAT-6 form a tight, 1:1 complex, which may represent their functional form. In the work reported here a combination of yeast two-hybrid and biochemical analysis has been used to characterise complex formation between two other pairs of CFP-10/ESAT-6 family proteins (Rv0287/Rv0288 and Rv3019c/Rv3020c) and to determine whether complexes can be formed between non-genome paired members of the family. The results clearly demonstrate that Rv0287/Rv0288 and Rv3019c/3020c form tight complexes, as initially observed for CFP-10/ESAT-6. The closely related Rv0287/Rv0288 and Rv3019c/Rv3020c proteins are also able to form non-genome paired complexes (Rv0287/Rv3019c and Rv0288/Rv3020c), but are not capable of binding to the more distantly related CFP-10/ESAT-6 proteins.

Original languageEnglish
Pages (from-to)255-262
Number of pages8
JournalFEMS Microbiology Letters
Volume238
Issue number1
Early online date29 Jul 2004
DOIs
Publication statusPublished - 01 Sept 2004

Keywords

  • CFP-10
  • ESAT-6
  • ESAT-6 family members
  • Protein-protein interaction
  • Tuberculosis

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