riboflavin(out) + ADP + phosphate + H(+) => riboflavin(in) + ATP + H2O
riboflavin(out) + adp + phosphate + h(+) => riboflavin(in) + atp + h2o
riboflavin(out) + ADP + phosphate + H(+) => riboflavin(in) + ATP + H2O
riboflavin(out) + adp + phosphate + h(+) => riboflavin(in) + atp + h2o