L-aspartyl-L-lysine(out) => L-aspartyl-L-lysine(in)
l-aspartyl-l-lysine(out) => l-aspartyl-l-lysine(in)
L-aspartyl-L-lysine(out) => L-aspartyl-L-lysine(in)
l-aspartyl-l-lysine(out) => l-aspartyl-l-lysine(in)