The authors wish to make the following corrections to their paper \[[@B1-toxins-08-00352]\].

In the caption of Figure 3, "and TcdB~1-1851~ (0.5 nM) respectively" should be replaced with "respectively, and treated for 4 h with TcdB~1-1851~ (0.5 nM)".

In the first paragraph of Section 4.9, "CT26 cells were incubated with 10 pM TcdB~fl~ for 3 h in the presence or absence of 250 μM TcdB~Δ1756--1780~, or 500 μM TcdB~CROP~" should be replaced with "CT26 cells were incubated with 100 pM TcdB~fl~ for 2 h in the presence or absence of 250 nM TcdB~Δ1756--1780~, or 500 nM TcdB~CROP~". Also, "for 4 h with or without 250 µM TcdB~Δ1756--1780~" should be replaced with "for 4 h with or without 250 nM TcdB~Δ1756--1780~".

The changes do not affect the scientific results. The manuscript will be updated and the original will remain online on the article webpage. We apologize for any inconvenience caused to our readers.
