Abstract:
:Mycoplasma hyopneumoniae, the principal aetiological agent of porcine enzootic pneumonia, synthesizes a 36 kDa protein (P36) which is an early and strong immunogenic factor in experimentally and naturally infected swine. Polyclonal antibodies were made against the recombinant P36 protein in rabbits and used for the identification of M. hyopneumoniae by the immunoblot technique. The proteins from the M. hyopneumoniae reference strains and from 13 M. hyopneumoniae field strains isolated from naturally infected pigs in Switzerland, Hungary, France and Canada were analysed by the immunoblot technique using anti-P36 antibodies. All 13 field strains and the three reference J strains of M. hyopneumoniae, received from different collections and laboratories, exhibited a strong reaction with a protein of 36 kDa indicating that the P36 protein is a common M. hyopneumoniae antigen. None of the different porcine Mycoplasma species including M. flocculare, M. hyorhinis, M. hyosynoviae, A. axanthum, A. laidlawii and A. granularum showed any reaction on the immunoblot with the anti-P36 antibodies. In addition, we have found no reaction with anti-P36 antibodies using 47 different Mycoplasma or Acholeplasma species isolated from human, mice, rat, poultry, ruminant, dog and cat. In conclusion we have shown that P36 is a protein that is a common antigen of M. hyopneumoniae strains and is not found in other Mycoplasma or Acholeplasma species tested. Because of its high specificity, P36 protein, or antibodies made against this protein can be used for the identification of M. hyopneumoniae strains.
journal_name
Mol Cell Probesjournal_title
Molecular and cellular probesauthors
Stipkovits L,Nicolet J,Haldimann A,Frey Jdoi
10.1016/s0890-8508(05)80017-9subject
Has Abstractpub_date
1991-12-01 00:00:00pages
451-7issue
6eissn
0890-8508issn
1096-1194journal_volume
5pub_type
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