2ck0 H 2.2 BS01 peptide P 0 R50 R52 G52C F53 N54 Y58 R50 R52 G55 F56 N57 Y61 1 ~ 11 QVQLQESGGGLVQPRGSLKLSCAASGFTFNTDAMNWVRQAPGKGLEWVARIRSKGFNFATYYADSVRDRFTISRDDSQSMLYLQMNNLKTEDTGIYYCVRGRDGEAMDYWGQGTTLTVSSAKTTPPSVYPLAPMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSPRPSETVTCNVAHPASSTKVDKKIVN