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Journal of Bacteriology, July 2005, p. 5000-5002, Vol. 187, No. 14
0021-9193/05/$08.00+0     doi:10.1128/JB.187.14.5000-5002.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Localization of Translocation Complex Components in Bacillus subtilis: Enrichment of the Signal Recognition Particle Receptor at Early Sporulation Septa{ddagger}

Aileen Rubio, Xin Jiang,{dagger} and Kit Pogliano*

Division of Biological Sciences, University of California—San Diego, 9500 Gilman Drive, La Jolla, California 92093-0377

Received 17 December 2004/ Accepted 20 April 2005

We here demonstrate that in Bacillus subtilis, the signal recognition particle receptor, FtsY, transiently localizes to early sporulation septa, whereas three SecYEG translocase-associated membrane proteins (SecDF, SpoIIIJ, and YqjG) are uniformly distributed. These results suggest FtsY delivers secreted proteins to SecYEG at the septum, consistent with initial septal localization of forespore membrane proteins.

* Corresponding author. Mailing address: Division of Biological Sciences, University of California—San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0377. Phone: (858) 822-1314. Fax: (858) 822-5740. E-mail: kpogliano{at}ucsd.edu.

{ddagger} Supplemental material for this article may be found at http://jb.asm.org/.

{dagger} Present address: Vanderbilt University Medical Center, Department of Biochemistry, 23rd Ave. South at Pierce, Nashville, TN 37232-0146.

Journal of Bacteriology, July 2005, p. 5000-5002, Vol. 187, No. 14
0021-9193/05/$08.00+0     doi:10.1128/JB.187.14.5000-5002.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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