The chlamydial major outer membrane protein is the most abundant surface protein on C. trachomatis and its well-defined sequence variability accounts for the separation of C. trachomatis isolates into 18 distinct serovars. C. trachomatis MOMP also confers structural rigidity to the infectious form of the organism and exhibits characteristics consistent with porin activity. Evidence also exists to suggest that MOMP may contribute to chlamydial invasion into susceptible eukaryotic host cells, yet little is known regarding the conformational features of this molecule. The goals of the work proposed in this application are to determine the location of intra- and intermolecular MOMP disulfide bridges and establish the conformational features of surface exposed MOMP epitopes using site-specific mutagenesis and molecular modeling techniques.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Project (R01)
Project #
5R01AI047853-02
Application #
6374559
Study Section
Bacteriology and Mycology Subcommittee 2 (BM)
Program Officer
Quackenbush, Robert L
Project Start
2000-06-01
Project End
2005-05-31
Budget Start
2001-06-01
Budget End
2002-05-31
Support Year
2
Fiscal Year
2001
Total Cost
$273,165
Indirect Cost
Name
Boston Medical Center
Department
Type
DUNS #
005492160
City
Boston
State
MA
Country
United States
Zip Code
02118
Wang, Yan; Berg, Eric A; Feng, Xiaogeng et al. (2006) Identification of surface-exposed components of MOMP of Chlamydia trachomatis serovar F. Protein Sci 15:122-34