[Chain 2] 1u4r_B : 1 SPYSSDTTPCCFAYIARPLPRAHIKEYFYTSGKCSNPAVVFVTAANAQVCANPEKKWVRE 60 <<<||||||||||||||||||||||||||||||||||||||||::|:||||||||||||| 1u4m_B : 1 SPYSSDTTPCCFAYIARPLPRAHIKEYFYTSGKCSNPAVVFVTRKNRQVCANPEKKWVRE 60 1u4r_B : 61 YINSLEMS 68 |||||||| 1u4m_B : 61 YINSLEMS 68