>sp|Q99JI1|MSTN1_MOUSE Musculoskeletal embryonic nuclear protein 1 OS=Mus musculus GN=Mustn1 MSEAGTPEGPIKKKRPPVKEEDLKGARGTLAKNQDIKSKTYQVMRDYEQAGSAAPSVFSR NRTGTETVFEKPKEGPAKSVFG