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. Author manuscript; available in PMC: 2013 May 20.
Published in final edited form as: Biochemistry. 2011 Jun 10;50(26):5870–5882. doi: 10.1021/bi200107n

Scheme 1.

Scheme 1

The proposed mechanism of SmTGR. Two types of charge-transfer complexes (FADH–NADP+ CTC and thiolate–FAD CTC) are shown by dashed arrows. Residues numbered without a prime are from one subunit and residues numbered with a prime are from the other subunit. The proposed mechanism is based on data in this paper and previous studies (24, 34, 39, 40).