Table 2 Apparent activation energies (EA) for the rate of accumulation (kO-R) and subsequent relaxation (kR-O) of the OCPR state in WT OCP and two sequence variants studied.

From: Role of hydrogen bond alternation and charge transfer states in photoactivation of the Orange Carotenoid Protein

 

EA (kO-R), kcal/mol

EA (kR-O), kcal/mol

WT OCP

7.5 ± 0.3

31.8 ± 1.1

OCPWW

2.3 ± 0.4

34.3 ± 1.0

OCPYA

2.6 ± 0.3

38.2 ± 0.6

  1. Average power of actinic LED light was set to 200 mW in all experiments. Experiments were conducted in a range of temperatures from 25 to 40 °C. Values are given as means ± S.D. and resulted from three measurements.
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