preferred_name: Absent central pair (9+0 or 9+1 configuration) of axoneme
preferred_name_lc: absent central pair (9+0 or 9+1 configuration) of axoneme
label: Absent central pair (9+0 or 9+1 configuration) of axoneme
label_lc: absent central pair (9+0 or 9+1 configuration) of axoneme