6qbx f2 4.2 BS01 FES f2 1 C139 H141 L142 C158 H161 S163 C138 H140 L141 C157 H160 S162 H161 H160 0008121,0016020,0051537 31492636 501 HTDIKVPDFSDYRRPEVLDSTKSSKESSEARKGFSYLITATTTVGVAYAAKNVVSQFVSSMSASADVLAMSKIEIKLSDIPEGKNMAFKWRGKPLFVRHRTKKEIDQEAAVEVSQLRDPQHDLERVKKPEWVILIGVCTHLGCVPIANAGDFGGYYCPCHGSHYDASGRIRKGPAPLNLEVPSYEFTSDDMVIVG