Protein  | Gene Symbol  | All allelic disease phenotypes - locus/disease symbols  | 
| Jagged 1 |  | * Charcot-Marie-Tooth disease, axonal, related to JAG1 - CMT2 (14.76)
   | 
Jagged 2 |  |  * Muscular dystrophy, LGMDR27 - LGMDR27 (1.40)
 
  | Junction plakoglobin |  |  * naxos disease -  (10.125, 10.134)
  * arrhythmogenic right ventricular dysplasia, familial, 12 - ARVD12  (10.125, 10.134)
 
  | Junctophilin 1 |  |  * Congenital myopathy 25 - CMYO25 (3.66)
 
  | Junctophilin-2 |  | * Hypertrophic cardiomyopathy related to junctophilin -  (10.18, 10.85)
  * Cardiomyopathy, familial hypertrophic, 17 - CMH17 (10.18, 10.85)
  * Dilated cardiomyopathy, 2E - CMD2E (10.18, 10.85)
   |