This gene encodes the gap junction protein connexin 30
and connexin 26 are upregulated in psoriatic skin and have been associated with epidermal hyperproliferation [99, 102, 103].
Also, mutation of GJB6, coding for connexin 30
, has been reported to be associated to hearing dysfunction (ARNSHL DFNB1B).
Hearing impairment in Dutch patients with connexin 26 (GJB2) and connexin 30
Xia et al., "Frequency and distribution of GJB2 (connexin 26) and GJB6 (connexin 30
) mutations in a large North American repository of deaf probands," Genetics in Medicine, vol.
GJB4 and GJB6 code for gap junction proteins connexin 30.3 and connexin 30, respectively.
Giaume, "Neurons control the expression of connexin 30 and connexin 43 in mouse cortical astrocytes," Glia, vol.
 Could other potential candidate genes, GJB6 (connexin 30
) and GJA1 (connexin 43), lead to non-syndromic deafness in Africans?