1kj2 E 2.71 BS01 peptide Q 0 R50 D99 R51 D98 ? P04214 11911820 1 ~ 8 VTLLEQNPRWRLVPRGQAVNLRCILKNSQYPWMSWYQQDLQKQLQWLFTLRSPGDKEVKSLPGADYLATRVTDTELRLQVANMSQGRTLYCTCSAAPDWGASAETLYFGSGTRLTVL