L-arginyl-L-alpha-amino acid(out) => L-arginyl-L-alpha-amino acid(in)
l-arginyl-l-alpha-amino acid(out) => l-arginyl-l-alpha-amino acid(in)
L-arginyl-L-alpha-amino acid(out) => L-arginyl-L-alpha-amino acid(in)
l-arginyl-l-alpha-amino acid(out) => l-arginyl-l-alpha-amino acid(in)