>1BTG_1|Chains A, B, C|BETA NERVE GROWTH FACTOR|Mus musculus (10090) MGEFSVCDSVSVWVGDKTTATDIKGKEVTVLAEVNINNSVFRQYFFETKCRASNPVESGCRGIDSKHWNSYCTTTHTFVKALTTDEKQAAWRFIRIDTACVCVLSRKATR