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. 2008 Apr 23;105(17):6278–6283. doi: 10.1073/pnas.0710641105

Table 1.

Spin-label solvation factors fS

Spin-label position Solvation factor, fS
11 1
15 1
18 0
30 2
31 2
109 1
133 1
139 0
140 2
46/118 N/D

fS values were not determined for F46C* and R118C* because the C cluster that contains F46C* does not measurably interact with the C terminus of the chain (as required by the definition of fS) and R118C* lies outside all local clusters. N/D, not determined.