Gene symbol and protein	Gene Location	All allelic disease phenotypes - locus/disease symbols
RAB7 member RAS oncogene family	3q21	* Charcot-Marie-Tooth neuropathy Type 2B - CMT2B (14.37)
RAPSN rapsyn	11p11.2-p11.1	* Myasthenic syndrome, congenital - CMS1D (11.11)
RBM20 RNA binding motif protein 20	10q25.3	* Cardiomyopathy, dilated, 1DD - CMD1DD (10.59)
REEP1 receptor accessory protein 1	2p11.2	* Spastic paraplegia 31 - SPG31 (15.12)
RRM2B ribonucleotide reductase M2 B (TP53 inducible)	8q23.1	* Mitochondrial dna depletion syndrome 8A - MTDP8B (16.20, 16.23) * Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal - PEOA5 (16.20, 16.23)
RYR1 ryanodine receptor 1 (skeletal)	19q13.1	* myopathy, congenital, with fiber-type disproportion - CFTD (3.12, 3.17, 3.18, 3.19, 3.20, 3.30, 8.1) * Central core disease - CCD (3.12, 3.17, 3.18, 3.19, 3.20, 3.30, 8.1) * Malignant hyperthermia susceptibility 1 - MHS1 (3.12, 3.17, 3.18, 3.19, 3.20, 3.30, 8.1) * centronuclear myopathy, recessive - (3.12, 3.17, 3.18, 3.19, 3.20, 3.30, 8.1) * minicore myopathy with external ophthalmoplegia - (3.12, 3.17, 3.18, 3.19, 3.20, 3.30, 8.1)
RYR2 ryanodine receptor 2	1q42.1-q43	* Arrhythmogenic right ventricular cardiomyopathy 2 - ARVC2 (10.73, 10.84) * Arrhythmogenic right ventricular dysplasia 2 - ARVD2 (10.73, 10.84) * Ventricular tachycardia, catecholaminergic polymorphic - CPVT (10.73, 10.84) * Ventricular tachycardia, stress-induced polymorphic - VTSIP (10.73, 10.84)