>4N6V_1|Chains A[auth 0], B[auth 1], C[auth 2], D[auth 3], E[auth 4], F[auth 5], G[auth 6], H[auth 7], I[auth 8], J[auth 9]|Cystatin-B|Homo sapiens (9606) ATQPATAETQHIADQVRSQLEEKENKKFPVFKAVSFKSQVVAGTNYFIKVHVGDEDFVHLRVFQSLPHENKPLTLSNYQTNKAKHDELTYF