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Journal of Bacteriology, September 2009, p. 5838-5841, Vol. 191, No. 18
0021-9193/09/$08.00+0     doi:10.1128/JB.00280-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Protein Domains and Residues Involved in the CheZ/CheAS Interaction{triangledown}

Brian J. Cantwell{dagger} and Michael D. Manson*

Department of Biology, TAMU 3258, Texas A&M University, College Station, Texas 77843

Received 2 March 2009/ Accepted 10 June 2009

CheZ localizes to chemoreceptor patches by binding CheA-short (CheAS). Residues 70 to 134 of CheZ, constituting the apical loops and part of the dimerization domain, suffice for localization. Replacements of Tyr-118, Ile-119, Leu-123, Arg-124, and Leu-126 of CheA interfere with localization. These residues are exposed in the 'P1 domain of CheAS.

* Corresponding author. Mailing address: 3258 TAMU, Texas A&M University, College Station, TX 77843. Phone: (979) 845-5158. Fax: (979) 845-2891. E-mail: mike{at}mail.bio.tamu.edu

{triangledown} Published ahead of print on 19 June 2009.

{dagger} Present address: Department of Microbiology, University of Tennessee, Knoxville, TN 37996.

Journal of Bacteriology, September 2009, p. 5838-5841, Vol. 191, No. 18
0021-9193/09/$08.00+0     doi:10.1128/JB.00280-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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