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. Author manuscript; available in PMC: 2012 Dec 13.
Published in final edited form as: Biochemistry. 2011 Nov 14;50(49):10647–10657. doi: 10.1021/bi201619z

Table 2.

Stabilization of GCase with inhibitors at acidic and neutral pH.

1 2 3 IFG
Inhibitor
(mM)
Tm(°C) ΔTm Tm(°C) ΔTm Tm(°C) ΔTm Tm(°C) ΔTm
pH 5.2 55.8 ± 0.0a
0.5 56.4 ± 0.0 0.6 55.9 ± 0.1 0.3 56.1 ± 0.0 0.3 68.0 ± 0.2 12.2
1 56.6 ± 0.0 0.8 56.0 ± 0.0 0.3 56.1 ± 0.1 0.2 68.9 ± 0.3 13.0
2 57.3 ± 0.1 1.5 56.7 ± 0.1 1.0 56.7 ± 0.1 0.8 69.7 ± 0.3 13.8
5 58.4 ± 0.1 2.7 57.4 ± 0.1 1.7 57.2 ± 0.1 1.3 67.5 ± 0.3 11.6
10 59.0 ± 0.1 3.2 57.4 ± 0.0 1.7 56.9 ± 0.0 1.0 63.7 ± 0.2 7.8
pH 7.2 47.1 ± 0.2 a
0.5 48.5 ± 0.1 1.4 48.7 ± 0.1 1.7 50.7 ± 0.0 2.1 63.8 ± 0.3 16.9
1 49.4 ± 0.1 2.3 49.3 ± 0.0 2.2 52.0 ± 0.1 3.3 65.4 ± 0.1 18.4
2 49.9 ± 0.1 2.8 50.1 ± 0.1 3.1 52.6 ± 0.1 3.9 67.2 ± 0.2 20.2
5 52.5 ± 0.1 5.4 52.1 ± 0.1 5.0 53.6 ± 0.1 5.0 70.3 ± 0.2 23.4
10 54.6 ± 0.1 7.5 53.6 ± 0.1 6.5 54.5 ± 0.0 5.8 72.6 ± 0.2 25.7
a

mean Tm measured for GCase at indicated pH value in the absence of inhibitor.