1887

Abstract

The major outer-membrane protein (MOMP) of is a promising candidate antigen for- andchlamydial vaccine development. We have sequenced the MOMP genes for a serovar A and a serovar B isolate and have compared these new sequences with those already reported. Intra-serovar changes in the inferred amino acid sequences of the surface-exposed variable segments known to be responsible for binding of neutralizing antibody were observed. Nevertheless, epitope mapping with solid-phase peptides showed that these intra-serovar changes did not affect the binding of serovar- and subspecies-specific, potentially protective antibodies. Variable segment 1 of serovar A contained two adjacent antibody-binding sites, one of which was C-subspecies specific while the other was serovar A specific. Therefore the subspecies binding site for C-complex organisms is in variable segment 1, whilst that for B-complex organisms is in variable segment 4. This work shows that MOMP sequences are relatively stable within the serovar categorization for isolates taken decades apart from different continents. Within a given serovar, however, limited interchange of functionally related amino acids may occur without impairing the binding of serovar-specific antibody.

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1990-08-01
2024-04-25
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References

  1. Baehr W., Zhang Y.X., Joseph T., Su H., Nano F.E., Everett K.D.E., Caldwell H.D. 1988; Mapping antigenic domains expressed by Chlamydia trachomatis major outer membrane protein genes. Proceedings of the National Academy of Sciences of the United States of America 85:4000–4004
    [Google Scholar]
  2. Batteiger B.E., Newhall W.J., Terho P., Wilde C.E., Jones R.B. 1986; Antigenic analysis of the major outer membrane protein of Chlamydia trachomatis with murine monoclonal antibodies. Infection and Immunity 53:530–533
    [Google Scholar]
  3. Bavoil P., Ohlin A., Schachter J. 1984; Role of disulfide bonding in outer membrane structure and permeability in Chlamydia trachomatis . Infection and Immunity 44:479–485
    [Google Scholar]
  4. Caldwell H.D., Kromhout J., Schachter J. 1981; Purification and partial characterization of the major outer membrane protein of Chlamydia trachomatis . Infection and Immunity 31:1161–1176
    [Google Scholar]
  5. Collett B.A., Newhall W.J., Jersild V.R.A., Jones R.B. 1989; Detection of surface-exposed epitopes on Chlamydia trachomatis by immune electron microscopy. Journal of General Microbiology 135:85–94
    [Google Scholar]
  6. Conlan J.W., Clarke I.N., Ward M.E. 1988; Epitope mapping with solid-phase peptides: identification of type-, subspecies-, species- and genus-reactive antibody binding domains on the major outer membrane protein of Chlamydia trachomatis . Molecular Microbiology 2:673–679
    [Google Scholar]
  7. Conlan J.W., Ferris S., Clarke I.N., Ward M.E. 1989; Surface-exposed epitopes on the major outer-membrane protein of Chlamydia trachomatis defined with peptide antisera. Journal of General Microbiology 135:3219–3228
    [Google Scholar]
  8. Geysen H.M., Meloen R.H., Barteling S.J. 1984; Use of peptide synthesis to probe viral antigens for epitopes to a resolution of a single amino acid. Proceedings of the National Academy of Sciences of the United States of America 81:3998–4002
    [Google Scholar]
  9. Hatch T.P., Vance D.W., Al-Hossainy E. 1981; Identification of a major envelope protein in Chlamydia spp. Journal of Bacteriology 146:426–429
    [Google Scholar]
  10. Karn J., Brenner S., Barnett L., Cesareni G. 1980; Novel bacteriophage λ-cloning vector. Proceedings of the National Academy of Sciences of the United States of America 77:5172–5176
    [Google Scholar]
  11. Kuo C.C., Chi E.Y. 1987; Ultrastructural study of Chlamydia trachomatis surface antigens by immunogold staining with monoclonal antibodies. Infection and Immunity 55:1324–1328
    [Google Scholar]
  12. Messing J., Crea R., Seeburg P.H. 1981; A system for shotgun DNA sequencing. Nucleic Acids Research 9:309–321
    [Google Scholar]
  13. Pickett M.A., Ward M.E., Clarke I.N. 1987; Complete nucleotide sequence of the major outer membrane protein gene from Chlamydia trachomatis serovar L1. FEMS Microbiology Letters 42:185–190
    [Google Scholar]
  14. Saiki R.K., Scharf S., Faloon A.F., Mullis K.B., Horn G.T., Erlich H.A., Arnheim N. 1985; Enzymatic amplification of β-globin genomic sequences and restriction site analysis for diagnosis of sickle cell anemia. Science 230:1350–1354
    [Google Scholar]
  15. Salari S.H., Ward M.E. 1981; Polypeptide composition of Chlamydia trachomatis . Journal of General Microbiology 123:197–207
    [Google Scholar]
  16. Schachter J., Dawson C.R. 1978 Human Chlamydial Infections. Littleton, MA:: PSG Publishing.;
    [Google Scholar]
  17. Stephens R.S., Tam M.R., Kuo C., Nowinski R.C. 1982; Monoclonal antibodies to Chlamydia trachomatis: antibody specificities and antigen characterization. Journal of Immunology 128:1083–1089
    [Google Scholar]
  18. Stephens R.S., Mullenbach G., Sanchez-Pescador R., Agabian N. 1986; Sequence analysis of the major outer membrane protein gene from Chlamydia trachomatis serovar L2. Journal of Bacteriology 168:1277–1282
    [Google Scholar]
  19. Stephens R.S., Sanchez-Pescador R., Wagar E.A., Inouye C., Urdea M. 1987; Diversity of Chlamydia trachomatis major outer membrane protein genes. Journal of Bacteriology 169:3879–3885
    [Google Scholar]
  20. Stephens R.S., Wagar E.A., Schoolnik G.K. 1988; High resolution mapping of serovar-specific and common antigenic determinants of the major outer membrane protein of Chlamydia trachomatis . Journal of Experimental Medicine 167:817–831
    [Google Scholar]
  21. Wenman W.M., Lovett M.A. 1982; Expression in Escherichia coli of Chlamydia trachomatis antigen recognized during human infections. Nature; London: 29668–70
    [Google Scholar]
  22. Yanisch-Perron C., Vieira J., Messing J. 1985; Improved M13 phage cloning vectors and host strains: nucleotide sequences of the M13mpl8 and pUCl9 vectors. Gene 33:103–119
    [Google Scholar]
  23. Yuan Y., Zhang Y.X., Watkins N.G., Caldwell H.D. 1989; Nucleotide and deduced amino acid sequences for the four variable domains of the major outer membrane proteins of the 15 serovars of Chlamydia trachomatis . Infection and Immunity 57:1040–1049
    [Google Scholar]
  24. Zhang Y.X., Stewart S., Joseph T., Taylor H.R., Caldwell H.D. 1987; Protective monoclonal antibodies recognize epitopes located on the major outer membrane protein of Chlamydia trachomatis . Journal of Immunology 138:575–581
    [Google Scholar]
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