Infect Immun 2002,70(6):2869–2876.CrossRefPubMed 43. Kjeldgaard M, Nissen P, Thirup S, Nyborg J: The crystal structure of elongation factor EF-Tu from Thermus aquaticus in the GTP conformation. Structure 1993,1(1):35–50.CrossRefPubMed 44. Pancholi V, Fischetti VA: A novel plasminogen/plasmin binding protein on PX-478 mw the surface of group A streptococci. Adv Exp Med Biol 1997, 418:597–599.PubMed 45. Wilkins JC, Beighton D, Homer KA: Effect of acidic pH on expression of surface-associated proteins of Streptococcus oralis. Appl Environ Microbiol 2003,69(9):5290–5296.CrossRefPubMed
46. Granato D, Bergonzelli GE, Pridmore RD, Marvin L, Rouvet M, Corthesy-Theulaz IE: Cell surface-associated elongation factor Tu mediates the attachment of Lactobacillus johnsonii NCC533 (La1) to human intestinal
cells and mucins. Infect Immun 2004,72(4):2160–2169.CrossRefPubMed 47. Jenkinson HF, Baker RA, Tannock GW: A binding-lipoprotein-dependent oligopeptide transport system in Streptococcus gordonii essential for uptake of hexa- and heptapeptides. J Bacteriol 1996,178(1):68–77.PubMed 48. Trivier D, Houdret N, Courcol RJ, Lamblin G, Roussel P, Davril M: The binding of surface proteins from Staphylococcus this website aureus to human bronchial mucins. Eur Respir J 1997,10(4):804–810.PubMed 49. Kessler RE, Yagi Y: Identification and partial characterization of a pheromone-induced adhesive Oxymatrine surface antigen of Streptococcus faecalis. J Bacteriol 1983,155(2):714–721.PubMed 50. Jenkinson HF, McNab R, Loach DM, Tannock GW: Lipoprotein receptors in oral streptococci. Dev Biol Stand 1995, 85:333–341.PubMed 51. Jenkinson HF, Terry SD, McNab R, Tannock GW: Inactivation of the gene encoding surface protein SspA in Streptococcus gordonii DL1 affects cell interactions with human salivary agglutinin and oral actinomyces. Infect Immun
1993,61(8):3199–3208.PubMed 52. Murray PA, Levine MJ, Tabak LA, Reddy MS: XL184 specificity of salivary-bacterial interactions: II. Evidence for a lectin on Streptococcus sanguis with specificity for a NeuAc alpha 2, 3Ga1 beta 1, 3Ga1NAc sequence. Biochem Biophys Res Commun 1982,106(2):390–396.CrossRefPubMed 53. Reddy MS, Levine MJ, Prakobphol A: Oligosaccharide structures of the low-molecular-weight salivary mucin from a normal individual and one with cystic fibrosis. J Dent Res 1985,64(1):33–36.CrossRefPubMed 54. Carnoy C, Scharfman A, Van Brussel E, Lamblin G, Ramphal R, Roussel P: Pseudomonas aeruginosa outer membrane adhesins for human respiratory mucus glycoproteins. Infect Immun 1994,62(5):1896–1900.PubMed Competing interests The authors declare that they have no competing interests.