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