preferred_name: spliceosome conformational change to release U4 (or U4atac) and U1 (or U11)
preferred_name_lc: spliceosome conformational change to release u4 (or u4atac) and u1 (or u11)
label: spliceosomal A1 complex biosynthesis
label_lc: spliceosomal a1 complex biosynthesis