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. 2020 Jan 17;11(3):1141–1147. doi: 10.1021/acs.jpclett.9b03208

Table 1. Estimated in-Cell Spin Concentration for Samples Studied in This Work.

  in-cell EPR spin concentration (μM)a
  4 h 12 h
PpiB-CT02MA 31.8 ± 6.7 11.7 ± 3.1
PpiB-BrPy-DO3A-Gd(III) 46.1 ± 12.5 29.0 ± 8.3
GB1-CT02MA 35.4 ± 7.4 12.5 ± 3.2
a

Protein concentration is about half that of the spin concentration if we consider 100% labeling efficiency.