>sp|P05814|CASB_HUMAN Beta-casein OS=Homo sapiens GN=CSN2
MKVLILACLVALALARETIESLSSSEESITEYKQKVEKVKHEDQQQGEDEHQDKIYPSFQ
PQPLIYPFVEPIPYGFLPQNILPLAQPAVVLPVPQPEIMEVPKAKDTVYTKGRVMPVLKS
PTIPFFDPQIPKLTDLENLHLPLPLLQPLMQQVPQPIPQTLALPPQPLWSVPQPKVLPIP
QQVVPYPQRAVPVQALLLNQELLLNPTHQIYPVTQPLAPVHNPISV