. "\"Any of the numerous similar discrete openings in the nuclear envelope of a eukaryotic cell, where the inner and outer nuclear membranes are joined.\" [ISBN:0198547684]" . . "nuclear pore" . "NPC" . "nuclear pore complex" . "nucleopore" . "NIF_Subcellular:sao220861693" . "Wikipedia:Nuclear_pore" . . . "nuclear pore membrane protein" .