4rpo B 1.95 BS01 T6C B 1 S104 F106 F151 F167 E169 H206 F231 V275 S16 F18 F63 F79 E81 H118 F143 V187 ? Kd=22.8nM P52679 25397598 401 RFDPGTSNRNFRIAASDFGQALMLPRLYATLEETAPQVRVTGVNLRHGPLVEELESGSIDIAFGGFPTLSAGIKTQTLFREEYVCVMRQSHPALTHGLDLEAFRQCRHIIVTAHEFNHVHEQVEARLLELLPPESIRFTTENFLVSAVIAEETDVILTIPSRLARWFANRGGLTIFPVPIELPSIEVKQYWHERYDKDPGNIWLRRVIAKIGFQNPPAE