Monoclonal antibodies to Mycobacterium tuberculosis CDC 1551 reveal subcellular localization of MPT51

Ban Al-Sayyed, Sajida Piperdi, Xinni Yuan, Anping Li, Gurdyal S. Besra, William R. Jacobs, Arturo Casadevall, Aharona Glatman-Freedman

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Mycobacterium tuberculosis CDC 1551, a highly immunogenic outbreak strain, previously reported to have unique surface distribution of capsular polysaccharide, was used to generate novel monoclonal antibodies (mabs) to surface mycobacterial targets. Two immunoglobulin G1 (IgG1) mAbs, 16a1 and 16a6 were generated. The mAbs originated from the same B cell, bound strongly to whole cell M. tuberculosis CDC1551 and to its cell wall, membrane and cytosol fractions recognizing a 90 kDa protein. Immunoprecipitation using mAb 16a1 isolated a protein with amino acid peptide sequences matching MPT51 from the cytosol. This immunogenic protein of unknown function was previously reported only in culture filtrates of M. tuberculosis. Our findings suggest for the first time that this protein is found within the M. tuberculosis cell.

Original languageEnglish (US)
Pages (from-to)489-497
Number of pages9
JournalTuberculosis
Volume87
Issue number6
DOIs
StatePublished - Nov 1 2007

Fingerprint

Centers for Disease Control and Prevention (U.S.)
Mycobacterium tuberculosis
Monoclonal Antibodies
Cytosol
Proteins
Immunoprecipitation
Cell Wall
Disease Outbreaks
Polysaccharides
Immunoglobulins
Amino Acid Sequence
B-Lymphocytes
Cell Membrane

Keywords

  • Monoclonal antibodies
  • MPT51
  • Mycobacterium tuberculosis

ASJC Scopus subject areas

  • Microbiology
  • Immunology
  • Microbiology (medical)
  • Infectious Diseases

Cite this

Monoclonal antibodies to Mycobacterium tuberculosis CDC 1551 reveal subcellular localization of MPT51. / Al-Sayyed, Ban; Piperdi, Sajida; Yuan, Xinni; Li, Anping; Besra, Gurdyal S.; Jacobs, William R.; Casadevall, Arturo; Glatman-Freedman, Aharona.

In: Tuberculosis, Vol. 87, No. 6, 01.11.2007, p. 489-497.

Research output: Contribution to journalArticle

Al-Sayyed, B, Piperdi, S, Yuan, X, Li, A, Besra, GS, Jacobs, WR, Casadevall, A & Glatman-Freedman, A 2007, 'Monoclonal antibodies to Mycobacterium tuberculosis CDC 1551 reveal subcellular localization of MPT51', Tuberculosis, vol. 87, no. 6, pp. 489-497. https://doi.org/10.1016/j.tube.2007.07.005
Al-Sayyed, Ban ; Piperdi, Sajida ; Yuan, Xinni ; Li, Anping ; Besra, Gurdyal S. ; Jacobs, William R. ; Casadevall, Arturo ; Glatman-Freedman, Aharona. / Monoclonal antibodies to Mycobacterium tuberculosis CDC 1551 reveal subcellular localization of MPT51. In: Tuberculosis. 2007 ; Vol. 87, No. 6. pp. 489-497.
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