One gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell.

One gap junction consists of a cluster of closely packed pairs of transmembrane channels, the connexons, through which materials of low MW diffuse from one cell to a neighboring cell. [-]

             chromosome 1q21.1 deletion syndrome
             familial atrial fibrillation

          CHROMOSOME 1q21.1 DELETION SYNDROME, 1.35-MB
          ATRIAL FIBRILLATION, FAMILIAL, 1; ATFB1
          ATRIAL STANDSTILL 1; ATRST1

ClinVar, ClinGen, MalaCards, KEGG Disease, DECIPHER, COSMIC, MARRVEL, GTR, DisGeNET, dbVAR, GHR, gnomAD