human_reference_atlas part of has characterizing marker set has marker component CYP2A7 HAL cell cell type (from CL) hepatocyte periportal region hepatocyte 2020-10-12T10:29:31Z periportal hepatocyte periportal hepatocyte periportal hepatocyte CT Any hepatocyte that is part of the liver lobule periportal region. These cells are primarily involved in oxidative energy metabolism. CL:0019026 Homo sapiens sequence collection liver liver lobule hepatic cord