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. 2015 Jun 5;10(6):e0129417. doi: 10.1371/journal.pone.0129417

Fig 1. SpeB activity in the culture supernatant of GAS strains.

Fig 1

MGAS315, MGAS2221, and MGAS6180 and their derivative strains were cultured overnight in THY, and SpeB activity in the supernatant of the cultures were detected by the casein hydrolysis plate assay.