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Dual engines moving on antiparallel tracks

Two recent papers provide evidence that the Escherichia coli RecBCD complex, which unwinds double-stranded DNA to supply a substrate for recombination, has two helicase subunits that bind opposite DNA strands and move with opposite unwinding 'polarities'.

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Figure 1: Models depicting four unwinding reaction mechanisms for DNA helicases.

References

  1. Matson, S.W., George, J.W. & Bean, D.W. BioEssays 16, 13–22 (1994).

    Article  CAS  Google Scholar 

  2. Lohman, T.M. & Bjornson, K.P. (1996) Annu. Rev. Biochem. 65, 169–214 (1996).

    Article  CAS  Google Scholar 

  3. Taylor, A.F. & Smith, G.R. Nature 423, 889–893 (2003).

    Article  CAS  Google Scholar 

  4. Dillingham, M.S., Spies, M. & Kowalczykowski, S.C. Nature 423, 893–897 (2003).

    Article  CAS  Google Scholar 

  5. Taylor, A.F. & Amith. G.F. Cell 22, 447–457 (1980).

    Article  CAS  Google Scholar 

  6. Phillips, R.J., Hickleton, C.D., Boehmer, P.E. & Emmerson, P.T. Mol. Gen. Genet. 254, 319–329 (1997).

    CAS  PubMed  Google Scholar 

  7. Yarronton, G.T. & Gefter, M.L. Proc. Natl. Acad. Sci. USA 76, 1658–1662 (1979).

    Article  Google Scholar 

  8. Velankar, S.S., Soultanos, P., Dillingham, M.S. Subramanya, H.S. & Wigley, D.B. Cell 97:75–84 (1999).

    Article  CAS  Google Scholar 

  9. Wong, I. & Lohman, T.M. Science 256, 350–355 (1992).

    Article  CAS  Google Scholar 

  10. Patel, S.S. & Picha, K.M. Annu. Rev. Biochem. 69, 651–697 (2000).

    Article  CAS  Google Scholar 

  11. Geider, K. & Hoffmann-Berling, H. Annu. Rev. Biochem. 50, 233–260 (1981).

    Article  CAS  Google Scholar 

  12. Bianco, P.R. et al. Nature 409, 374–378 (2001).

    Article  CAS  Google Scholar 

  13. Anderson, D.G. & Kowalczykowski, S.C. Cell 90:77–86 (1997).

    Article  CAS  Google Scholar 

  14. van Brabant, A.J., Stan, R. & Ellis, N.A. Annu. Rev. Genomics Hum. Genet. 1, 409–459 (2000).

    Article  CAS  Google Scholar 

Download references

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Matson, S. Dual engines moving on antiparallel tracks. Nat Struct Mol Biol 10, 499–500 (2003). https://doi.org/10.1038/nsb0703-499

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