preferred_name: Keratin tetramers bind to form unit length filaments (Rattus norvegicus)
preferred_name_lc: keratin tetramers bind to form unit length filaments (rattus norvegicus)
label: Keratin tetramers bind to form unit length filaments (Rattus norvegicus)
label_lc: keratin tetramers bind to form unit length filaments (rattus norvegicus)