R3131


H<sub>2</sub>O
H2O
4-trimethylammoniobutanal
4-trimethylammoniobutanal
NAD<sup>+</sup>
NAD+
H<SUP>+</SUP>
(2) H+
γ-butyrobetaine
γ-butyrobetaine
NADH
NADH




Databases
MetaCyc:  1.2.1.47-RXN
RHEA:  17986