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Journal of Bacteriology, September 1998, p. 4742-4745, Vol. 180, No. 17
0021-9193/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Topological Model of the Rhodobacter capsulatus Light-Harvesting Complex I Assembly Protein LhaA (Previously Known as ORF1696)

C. S. Youngdagger and J. T. Beatty*

Department of Microbiology and Immunology, The University of British Columbia, Vancouver, British Columbia, Canada

Received 30 March 1998/Accepted 18 June 1998

A theoretical topology of the Rhodobacter capsulatus membrane protein LhaA was formulated and evaluated by gene fusion experiments. The apparent topological locations of fusion enzymes were compared with the theoretically derived structure, and a model of LhaA is suggested that consists of 12 transmembrane segments, with the N and C termini residing in the cytoplasm.

* Corresponding author. Mailing address: Department of Microbiology & Immunology, The University of British Columbia, Rm. 300, 6174 University Blvd., Vancouver, BC, Canada V6T 1Z3. Phone: (604) 822-6896. Fax: (604) 822-6041. E-mail: jbeatty{at}unixg.ubc.ca.

dagger Present address: Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287-1604.

Journal of Bacteriology, September 1998, p. 4742-4745, Vol. 180, No. 17
0021-9193/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.


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