P159 is a proteolytically processed, surface adhesin of Mycoplasma hyopneumoniae: defined domains of P159 bind heparin and promote adherence to eukaryote cells.
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Authors
Burnett, Tracey ADinkla, Katrin
Rohde, Manfred
Chhatwal, Gursharan S
Uphoff, Cord
Srivastava, Mukesh
Cordwell, Stuart J
Geary, Steven
Liao, Xiaofen
Minion, F Chris
Walker, Mark J
Djordjevic, Steven P
Issue Date
2006-05-01
Metadata
Show full item recordAbstract
Mycoplasma hyopneumoniae, the causative agent of porcine enzootic pneumonia, colonizes the respiratory cilia of affected swine causing significant economic losses to swine production worldwide. Heparin is known to inhibit adherence of M. hyopneumoniae to porcine respiratory epithelial cilia. M. hyopneumoniae cells bind heparin but the identity of the heparin-binding proteins is limited. Proteomic analysis of M. hyopneumoniae lysates identified 27 kDa (P27), 110 kDa (P110) and 52 kDa (P52) proteins representing different regions of a 159 kDa (P159) protein derived from mhp494. These cleavage fragments were surface located and present at all growth stages. Following purification of four recombinant proteins spanning P159 (F1P159, F2P159, F3P159 and F4P159), only F3P159 and F4P159 bound heparin in a dose-dependent manner (K(d) values 142.37 +/- 22.01 nM; 75.37 +/- 7.34 nM respectively). Scanning electron microscopic studies showed M. hyopneumoniae bound intimately to porcine kidney epithelial-like cells (PK15 cells) but these processes were inhibited by excess heparin and F4P159. Similarly, latex beads coated with F2P159 and F4P159 adhered to and entered PK15 cells, but heparin, F2P159 and F4P159 was inhibitory. These findings indicate that P159 is a post-translationally cleaved, glycosaminoglycan-binding adhesin of M. hyopneumoniae.Citation
Mol. Microbiol. 2006, 60(3):669-86PubMed ID
16629669Type
ArticleLanguage
enISSN
0950-382Xae974a485f413a2113503eed53cd6c53
10.1111/j.1365-2958.2006.05139.x
Scopus Count
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