>6IE0_1|Chains A, B, C, D|(R,R)-butanediol dehydrogenase|Bacillus subtilis subsp. subtilis str. 168 (224308) SMKAARWHNQKDIRIEHIEEPKTEPGKVKIKVKWCGICGSDLHEYLGGPIFIPVDKPHPLTNETAPVTMGHEFSGEVVEVGEGVENYKVGDRVVVEPIFATHGHQGAYNLDEQMGFLGLAGGGGGFSEYVSVDEELLFKLPDELSYEQGALVEPSAVALYAVRSSKLKAGDKAAVFGCGPIGLLVIEALKAAGATDIYAVELSPERQQKAEELGAIIVDPSKTDDVVAEIAERTGGGVDVAFEVTGVPVVLRQAIQSTTIAGETVIVSIWEKGAEIHPNDIVIKERTVKGIIGYRDIFPAVLSLMKEGYFSADKLVTKKIVLDDLIEEGFGALIKEKSQVKILVRPN