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