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Infect. Immun., Nov 1995, 4535-4539, Vol 63, No. 11
B Stevenson, TG Schwan and PA Rosa
Previous studies have demonstrated that Borrelia burgdorferi in the midguts
of infected ticks shows increased expression of the antigenic outer surface
protein OspC after the ticks have ingested a blood meal. This differential
expression is at least partly due to a change in temperature, as an
increase in OspC levels is also observed when cultures are shifted from 23
to 35 degrees C. Immunoblotting of bacterial lysates with sera from
infected mice indicated that the levels of several additional antigens were
also increased in bacterial cultures shifted to 35 degrees C; we have
identified one antigen as OspE. We have also observed differential
expression of OspF, which has been proposed to be coexpressed in an operon
with the gene encoding OspE.
Copyright © 1995, American Society for Microbiology
Temperature-related differential expression of antigens in the Lyme disease spirochete, Borrelia burgdorferi
Laboratory of Microbial Structure and Function, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, Hamilton, Montana 59840, USA.
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