6u63 A 2.75 BS01 Q0D A 1 M231 L235 V249 M250 V253 R263 T266 L267 F270 M56 L60 V74 M75 V78 R88 T91 L92 F95 ? 0042981 Ki=220nM Q07820 31971799 401 DELYRQSLEIISRYLREQATGAKDTRSGATSRKALETLRRVGDGVQRNHETAFQGMLRKLDIKNEDDVKSLSRVMIHVFSDGVTNWGRIVTLISFGAFVAKHLKTINQESCIEPLAESITDVLVRTKRDWLVKQRGWDGFVEFFHV