Figure 8. Hydrogen exchange of N(3)H of flavodoxin's cofactor.
(a) Structure of FMN, with N(3)H indicated. (b) H/D exchange curve obtained for N(3)H of flavodoxin at pD 6.3, 25 °C. Because of folding in the 15N-dimension of the 1H-15N HSQC experiment, this intensity is negative. The exchange rate is (3.803±0.007)·10−6 s−1.