preferred_name: Phosphorylated PER binds to CLK (Drosophila melanogaster)
preferred_name_lc: phosphorylated per binds to clk (drosophila melanogaster)
label: Phosphorylated PER binds to CLK (Drosophila melanogaster)
label_lc: phosphorylated per binds to clk (drosophila melanogaster)