Chain A ( Q39 A40 P41 G42 K43 N84 T87 T89 T108 T110 S112 A114 S115 T116 K117 P119 L141 V142 K143 D144 Y145 F146 P147 E148 P149 P167 A168 V169 L170 Q171 S172 S173 G174 L175 Y176 S177 L178 H200 P202 ),  Chain B ( V132 R142 E143 A144 V146 W148 S156 G157 N158 S159 Q160 E161 S162 V163 L175 S176 S177 T178 L179 T180 ),  Chain C ( L124 P126 S128 K129 S130 T131 S132 G133 G134 T135 A136 A137 L138 G139 C140 V150 T151 V152 S153 W154 N155 S156 G157 A158 L159 T160 S161 G162 V163 H164 T165 F166 L178 S179 S180 V181 V182 T183 V184 P185 S186 S187 S188 L189 G190 T191 Q192 T193 Y194 I195 C196 N197 V198 ),  Chain D ( K39 P40 Q42 R108 V110 A111 A112 P113 S114 V115 F116 I117 F118 V133 C134 L135 L136 N137 N138 F139 T164 E165 Q166 D167 S168 K169 D170 S171 T172 Y173 S174 L201 K207 )