Apical domain region (bile canaliculi face): MRP2/ABCC2 (multidrug resistance-associated protein): promotes bile canaliculi formation and structural integrity; DPPIV (dipeptidyl peptidase-IV): bile canaliculi-specific protein and regulation of extracellular bioactive peptide concentration.
Ultrastructure: cell-cell connections, bile canaliculi network, polarized Golgi apparatus