Table 1.

Summary of the MS analysis of BSA digests prepared under the conditions indicated in Figure 1.

Figure 1 panel	Detergent/EA Treatment	Total m/z matching BSA peptides ions*	Peptides common to a, b, & d
a)	No detergent, no EA	30	25
b)	No detergent, EA extracted	37	25
c)	1% OG, no EA extraction	0	0
d)	1% OG, EA extracted	34	25
e)	0.5% NP-40, EA extracted	26	17
f)	1% Triton X-100, EA extracted	23	17
g)	1% SDS, EA extracted	40	19

^*m/z between 700 and 4000

Data are derived from experiments depicted in Figure 1. The mass lists from the deisotoped peaks of the acquired m/z spectra were matched to BSA tryptic peptides with Expasy-FindPept (http://ca.expasy.org/tools/findpept.html). The number of predicted BSA tryptic peptides between 700 and 4000 m/z is 44.