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Applied and Environmental Microbiology, May 2006, p. 3774-3779, Vol. 72, No. 5
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.5.3774-3779.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Effect of Biofilm Growth on Expression of Surface Proteins of Actinomyces naeslundii Genospecies 2

James S. Paddick,1 Susan R. Brailsford,1 Susmitha Rao,1 Renata F. Soares,1 Edwina A. M. Kidd,2 David Beighton,1 and Karen A. Homer1*

Department of Microbiology,1 Department of Restorative Dentistry, King's College Dental Institute at Guy's, King's College and St. Thomas' Hospitals, London, United Kingdom2

Received 12 August 2005/ Accepted 10 March 2006

The predominant surface proteins of biofilm and planktonic Actinomyces naeslundii, a primary colonizer of the tooth surface, were examined. Seventy-nine proteins (the products of 52 genes) were identified in biofilm cells, and 30 of these, including adhesins, chaperones, and stress-response proteins, were significantly up-regulated relative to planktonic cells.

* Corresponding author. Mailing address: Department of Microbiology, King's College Dental Institute at Guy's, King's College and St. Thomas' Hospitals, Floor 17, Guy's Tower, Guy's Hospital, London SE1 9RT, United Kingdom. Phone: 44 20 7188 7464. Fax: 44 20 7188 7466. E-mail: karen.a.homer{at}kcl.ac.uk.

Applied and Environmental Microbiology, May 2006, p. 3774-3779, Vol. 72, No. 5
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.5.3774-3779.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.





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