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. 2021 Jun 17;60(30):16442–16447. doi: 10.1002/anie.202015797

Table 1.

Selected 13C‐retinal chemical shifts of the retinal chromophore in ChR2 and its photointermediates. A detailed description of the assignment is given in the SI.

State

13C12 [ppm]

13C14 [ppm][a]

13C15 [ppm]

ChR2470

136.8

126.0

166.5

P1 500

123.2

124.2

not resolved

P4 480

124.5

119.3

163.8

Px

132.8

122.7

166.1

[a] 13C14 chemical shifts were taken from our previous publication.[5]