>2bsd_C mol:protein length:264 RECEPTOR BINDING PROTEIN MTIKNFTFFSPNSTEFPVGSNNDGKLYMMLTGMDYRTIRRKDWSSPLNTALNVQYTNTS IIAGGRYFELLNETVALKGDSVNYIHANIDLTQTANPVSLSAETANNSNGVDINNGSGV LKVCFDIVTTSGTGVTSTKPIVQTSTLDSISVNDMTVSGSIDVPVQTLTVEAGNGLQLQ LTKKNNDLVIVRFFGSVSNIQKGWNMSGTWVDRPFRPAAVQSLVGHFAGRDTSFHIDIN PNGSITWWGANIDKTPIATRGNGSYFIK