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Comparative functional genomic analysis of Pasteurellaceae adhesins using phage display

journal contribution
posted on 2023-06-08, 14:11 authored by Lisa MullenLisa Mullen, Sean P Nair, John M Ward, Andrew N Rycroft, Rachel J Williams, Brian Henderson
The Pasteurellaceae contain a number of important animal pathogens. Although related, the various members of this family cause a diversity of pathology in a wide variety of organ systems. Adhesion is an important virulence factor in bacterial infections. Surprisingly little is known about the adhesins of the Pasteurellaceae. To attempt to identify the genes coding for adhesins to some key components of the hosts extracellular matrix molecules, phage display libraries of fragmented genomic DNA from Haemophilus influenzae, Actinobacillus pleuropneumoniae, Pasteurella multocida and Aggregatibacter actinomycetemcomitans, were prepared in the phage display vector pG8SAET. The libraries were screened against human or porcine fibronectin, serum albumin or a commercial extracellular matrix containing type IV collagen, laminin and heparin sulphate. Four genes encoding putative adhesins were identified. These genes code for: (i) a 34 kDa human serum albumin binding protein from Haemophilus influenzae; (ii) a 12.8 kDa fibronectin-binding protein from Pasteurella multocida; (iii) a 13.7 kDa fibronectin-binding protein from A. actinomycetemcomitans; (iv) a 9.5 kDa serum albumin-binding protein from A. pleuropneumoniae. None of these genes have previously been proposed to code for adhesins. The applications of phage display with whole bacterial genomes to identify genes encoding novel adhesins in this family of bacteria are discussed

History

Publication status

  • Published

Journal

Veterinary Microbiology

ISSN

0378-1135

Publisher

Elsevier

Issue

1-2

Volume

122

Page range

123-134

Department affiliated with

  • Clinical and Experimental Medicine Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2013-01-04

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