tokens: However , the Ets protein ( s ) that regulated GPIX promoter expression was unknown .
folded_tokens: however , the ets protein ( s ) that regulated gpix promoter expression was unknown .
labels: O O O B-protein_family_or_group I-protein_family_or_group O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O