label: oxidized coenzyme F420-(gamma-L-Glu)(n) + GTP + L-glutamate => oxidized coenzyme F420-(gamma-L-Glu)(n+1) + GDP + phosphate + H(+)
label_lc: oxidized coenzyme f420-(gamma-l-glu)(n) + gtp + l-glutamate => oxidized coenzyme f420-(gamma-l-glu)(n+1) + gdp + phosphate + h(+)