ID   6.4.1.6
DE   acetone carboxylase.
CA   butan-2-one + hydrogencarbonate + 2 ATP + 3 H2O = 3-oxopentanoate + 2 AMP
CA   + 4 phosphate + 4 H(+).
CC   -!- The enzyme from Xanthobacter sp. strain Py2 also carboxylates butan-
CC       2-one to 3-oxopentanoate.
DR   Q8RM04, ACXA_XANP2 ;  Q8RM03, ACXB_XANP2 ;  Q8RM02, ACXC_XANP2 ;
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