N(6)-(D-fructosyl)-L-lysine(out) => N(6)-(D-fructosyl)-L-lysine(in)
n(6)-(d-fructosyl)-l-lysine(out) => n(6)-(d-fructosyl)-l-lysine(in)
N(6)-(D-fructosyl)-L-lysine(out) => N(6)-(D-fructosyl)-L-lysine(in)
n(6)-(d-fructosyl)-l-lysine(out) => n(6)-(d-fructosyl)-l-lysine(in)