label: a ketone + reduced coenzyme F420-(gamma-L-Glu)(n) => a secondary alcohol + oxidized coenzyme F420-(gamma-L-Glu)(n) + H(+)
label_lc: a ketone + reduced coenzyme f420-(gamma-l-glu)(n) => a secondary alcohol + oxidized coenzyme f420-(gamma-l-glu)(n) + h(+)