>sp|P21741|MK_HUMAN Midkine OS=Homo sapiens GN=MDK MQHRGFLLLTLLALLALTSAVAKKKDKVKKGGPGSECAEWAWGPCTPSSKDCGVGFREGT CGAQTQRIRCRVPCNWKKEFGADCKYKFENWGACDGGTGTKVRQGTLKKARYNAQCQETI RVTKPCTPKTKAKAKAKKGKGKD