tokens: Therefore the binding sites for liver enriched factors , present in the hamster CYP7A1 proximal promoter in close vicinity and conserved between species , constitute a regulatory unit important for basal hepatic expression and tissue restriction of the action of hormones such as insulin .
folded_tokens: therefore the binding site for liver enriched factor , present in the hamster cyp7a1 proximal promoter in close vicinity and conserve between species , constitute a regulatory unit important for basal hepatic expression and tissue restriction of the action of hormone such as insulin .