sequence Identity relative to... SwissProt CYSP_PLAFA CATK_HUMAN 34% CATL_CHICK 36% CATL_HUMAN 30% CATL_MOUSE 30% CATS_BOVIN 35% CYSL_LYCES 35% CYSP_PLAFA 100% CYSP_PLAVI 46% CYSP_PLAVN 42% CYSP_THEAN 34% CYSP_TRYCR 44% CYSP_VIGMU 30% ORYB_ORYSA 31% PAP2_CARPA 35% PAP4_CARPA 35% PAPA_CARPA 36%