>9T0T_1|Chains A, B[auth C], C[auth G], D[auth J]|Tyrosine-protein kinase BTK|Homo sapiens (9606) AAVILESIFLKRSQQKKKTSPLNFKKRLFLLTVHKLSYYEYDFERGRRGSKKGSIDVEKITCVETVVPEKNPPPERQIPRRGEESSEMEQISIIERFPYPFQVVYDEGPLYVFSPTEELRKRWIHQLKNVIRYNSDLVQKYHPSFWIDGQYLCCSQTAKNAMGCQILEN