>4ZNX_1|Chains A, B, C, D|Tyrosine-protein kinase Fyn|Homo sapiens (9606)
VTLFVALYDYEARTEDDLSFHKGEKFQILNSSEGDWWEARSLTTGETGYIPSNYVAPV
>4ZNX_2|Chains E, F, G, H|APP12|synthetic construct (32630)
APPLPPRNRPRL