Also involved in HL, two deletions, del(GJB6-D13S1830) [2–4] and del(GJB6-D13S1854) [5] disrupt the GJB6 gene which codes for connexin-30, and it is thought that they may ablate a GJB2 cis-regulatory sequence [5–7]. Here, GJB2 is linked to Hodgkins lymphoma.