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A stereoview surrounding R194 in human sfALR and a minimized model of the R194H mutant. Panel A : R194 forms H-bonds with the 2’ OH of the ribose moiety of FAD, with its own main chain peptide carbonyl, and with the main chain carbonyl oxygen contributed by C95 of the other (green) subunit. Panel B represents a minimized model (see Experimental Procedures) of the R194H sfALR mutant.
