TABLE 1.

Human pannexin1 (Panx1) proteins are widely expressed. Panx1 proteins can be found in the brain, skin, lung, eye, breast, gastrointestinal tract, urinary system, reproductive system and blood cells.

Organ system	Tissue or cell type	Reference(s)
Nervous system	Cortical tissue	Dossi et al. (2018)
	Glioblastoma cells	Wei et al. (2015)
	Eye	Žužul et al. (2022)
	Corneal tissue	Cui et al. (2016)
Integumentary system	Skin and adnexal structures	Cowan et al. (2012)
	Epidermal sensory cells	Cárcaba et al. (2022)
	Breast epithelial cells	Jalaleddine et al. (2019)
Digestive system	Liver tissue	Leroy et al. (2022), Wang et al. (2022)
	Hepatocytes	Wang et al. (2022)
	Colon segments	Diezmos et al. (2013)
	Pancreatic islets	Bartley et al. (2019)
	Colonic carcinoma cells	Alhouayek et al. (2019)
	Gastric carcinoma cells	Ying et al. (2021)
Respiratory system	Lung tissue	Luu et al. (2021)
	Airway epithelial cells	Ransford et al. (2009)
	Tracheal epithelial cells	Ransford et al. (2009)
Urinary system	Kidney tissue	Jeličić et al. (2022)
	Bladder urethral cells	Negoro et al. (2013)
	Proximal tubular cells	Su et al. (2019)
Reproductive system	Uterus epithelial cells	Imamura et al. (2020)
	Umbilical vein endothelial cells	Lohman et al. (2015)
Circulatory system	Red blood cells	Rougé et al. (2022)
	Macrophages	Chen et al. (2019)
	Monocytes	Parzych et al. (2017), Chen et al. (2019)
	Thrombocytes	Li et al. (2023), Metz et al. (2023)
	T-lymphocytes	Boyd-Tressler et al. (2014)