>4R1N_1|Chains A, B, C, D|3-hydroxybutyryl-CoA dehydrogenase|Clostridium butyricum E4 str. BoNT E BL5262 (632245) MKKVFVLGAGTMGAGIVQAFAAKGCEVIVRDIKEEFVDRGIATITKSLSKLVAKEKITEADKEEILSRISGTTDMKLAADCDLVVEAAIENMKIKKEIFAELDGICKPETILASNTSSLSITEVASATKRADKVIGMHFFNPAPVMKLVEVIRGAATSQETFDAVKEMSESIGKTPVEVAEAPGFVVNRILIPMINEATFILQEGVAKEEDIDAAMKLGANHPMGPLALGDLIGLDVCLAIMDVLYNETGDTKYRASSLLRKYVRAGWLGRKTGKGFYDYSK