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Figure 1 | BMC Microbiology

Figure 1

From: EndoS from Streptococcus pyogenes is hydrolyzed by the cysteine proteinase SpeB and requires glutamic acid 235 and tryptophans for IgG glycan-hydrolyzing activity

Figure 1

Secretion of EndoS and SpeB during growth of S. pyogenes strain AP1. Panel A, growth of wild type AP1 and measurements of optical density at 620 nm over time. Samples were withdrawn for analysis at indicated time points. Panel B, detection of EndoS in samples from indicated time points using antiserum against full-length EndoS. Panel C, detection of SpeB in the culture supernatants using antiserum against the 40 kDa zymogen form of SpeB.

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BMC Microbiology

ISSN: 1471-2180

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