Figure 5
From: CrfP, a fratricide protein, contributes to natural transformation in Streptococcus suis
![Figure 5](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13567-021-00917-x/MediaObjects/13567_2021_917_Fig5_HTML.png)
CrfP could be secreted from the cell. A Construction of the vector pSET-2-crfP-spa. B Western blot analysis of CrfP. Total cell proteins and secreted proteins extracted from strain ZY05719 with pSET-2-crfP-spa were probed with anti-FLAG serum and anti-GroEL serum. Only CrfP was present in the secreted proteins, but both GroEL and CrfP were present in the total cell proteins.