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Journal of Clinical Microbiology, April 1999, p. 1024-1029, Vol. 37, No. 4
Department of Veterinary Science,
Received 1 June 1998/Returned for modification 4 August
1998/Accepted 7 January 1999
Serology remains the method of choice for laboratory diagnosis of
Mycoplasma pneumoniae infection. Currently available
serological tests employ complex cellular fractions of M. pneumoniae as antigen. To improve the specificity of M. pneumoniae diagnosis, a recombinant protein was assessed as a
serodiagnostic reagent. A panel of recombinant proteins were expressed
from a cloned M. pneumoniae gene that encodes a 116-kDa
surface protein antigen. The recombinant proteins were assessed for
reactivity with patient sera and the most antigenic was further
assessed for its serodiagnostic potential by indirect enzyme-linked
immunosorbent assay (ELISA). The ELISA based on the recombinant protein
was equivalent in sensitivity to the commercial test (Serodia Myco II;
Fujirebio Inc.) to which it was compared. Southern and Western blotting
data suggested that the recombinant protein derived from the 116-kDa
protein of M. pneumoniae could provide a species-specific
diagnostic tool, although further assessment is required.
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Indirect Enzyme-Linked Immunosorbent Assay for
Detection of Immunoglobulin G Reactive with a Recombinant Protein
Expressed from the Gene Encoding the 116-Kilodalton Protein of
Mycoplasma pneumoniae

*
Corresponding author. Mailing address: Department of
Veterinary Science, The University of Melbourne, Parkville, Victoria 3052, Australia. Phone: 61 3 93447368. Fax: 61 3 9344 7374. E-mail: p.markham{at}vet.unimelb.edu.au.
Present address: Walter and Elisa Hall Institute for Medical
Research, Parkville, Victoria 3052, Australia.
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