Author response image 5. Viscosity of S. cerevisiae spheroplasts at pH 7.4 and pH 6.0 measured by AFM nano-indentation experiments and analyzed according to Rebelo et al.

The viscosity reduces from η= 90 ± 16 Pa s (mean ± SEM; N = 31; median is 81 Pa s) at pH 7.4 to η = 70 ± 14 Pa s (N = 23; median is 59 Pa s) at pH 6.0.

DOI: http://dx.doi.org/10.7554/eLife.09347.046