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. 2010 Nov 5;5(11):e13864. doi: 10.1371/journal.pone.0013864

Figure 5. Expression of pili in FCT-1, FCT-2, FCT-3 and FCT-4 isolates grown at different pH conditions.

Figure 5

Immunoblot analysis of cell surface extracts of GAS strains 27_M6 (FCT-1), 51_M1 (FCT-2), 43_M3 (FCT-3), 135_M12 (FCT-4) 57_M28 (FCT-4) and 96_M89 (FCT-4) grown in non-buffered C-medium at starting pH values of 7.5 or 6.4 up to OD600 of 0.4; nitrocellulose transferred extracts were incubated with specific mouse polyclonal sera raised against M protein variants,Spy0269 protein, specific AP-1 pilin proteins and, in the case of the non biofilm formers M28 and M89, specific AP-1 and BP proteins.