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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2009 Apr 16;20(8):1504–1513. doi: 10.1016/j.jasms.2009.04.004

Table 1.

Quantitation of cross-linked peptides upon membrane interaction

16O labeled sample1 Ratio PH-KD T[87-111]K RD-KD K284-cap K426-cap Average ratio2
Akt + liposomes 16O/18O (from Fig. 3B) 0 1.12 0 1.32 1.30 10.5 ± 0.10
16O/18O nor.3 0 1.10 0 1.26 1.24
16O/18O ave. (n=3)4 0 0.96 ± 0.10 0 1.21 ± 0.19 1.19 ± 0.13
1

The 16O labeled sample was mixed with 18O labeled Akt control for MS analysis.

2

Average value for six non-modified peptides.

3

Normalized to the average value for six non-modified peptides.

4

Average normalized ratios from three measurements. The data are representative of three independent experiments.