Connexins are membrane-spanning proteins that assemble to form gap junction channels that facilitate the transfer of ions and small molecules between cells. For a general discussion of connexin proteins, see GJB2.
In melanocytic cells GJB1 gene expression may be regulated by MITF.
Hattori N, Yamamoto M, Yoshihara T, et al. (2003). "Demyelinating and axonal features of Charcot-Marie-Tooth disease with mutations of myelin-related proteins (PMP22, MPZ and Cx32): a clinicopathological study of 205 Japanese patients.". Brain126 (Pt 1): 134–51. doi:10.1093/brain/awg012. PMID12477701.
Sato H, Hagiwara H, Ohde Y, et al. (2007). "Regulation of renal cell carcinoma cell proliferation, invasion and metastasis by connexin 32 gene.". J. Membr. Biol.216 (1): 17–21. doi:10.1007/s00232-007-9020-5. PMID17565422.