ID   7.2.4.3
DE   (S)-methylmalonyl-CoA decarboxylase (sodium-transporting).
AN   (S)-2-methyl-3-oxopropanoyl-CoA carboxy-lyase.
AN   (S)-methylmalonyl-CoA carboxy-lyase.
AN   methylmalonyl-coenzyme A decarboxylase.
CA   (S)-methylmalonyl-CoA + H(+)(out) + Na(+)(in) = CO2 + Na(+)(out) +
CA   propanoyl-CoA.
CC   -!- This bacterial enzyme couples the decarboxylation of (S)-
CC       methylmalonyl-CoA to propanoyl-CoA to the vectorial transport of
CC       Na(+) across the cytoplasmic membrane, thereby creating a sodium ion
CC       motive force that is used for ATP synthesis.
CC   -!- It is a membrane-associated biotin protein and is strictly dependent
CC       on sodium ions for activity.
CC   -!- Formerly EC 4.1.1.41.
DR   O54028, MMDA_PROMO ;  Q57079, MMDA_VEIPA ;  O54031, MMDB_PROMO ;
DR   Q57286, MMDB_VEIPA ;  O54030, MMDC_PROMO ;  Q57111, MMDC_VEIPA ;
DR   O54029, MMDD_PROMO ;  Q56724, MMDD_VEIPA ;  Q57490, MMDE_VEIPA ;
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