| | | Copy number gain | See cases | |
| | | Copy number gain | See cases | |
| | | Single nucleotide variant (splice donor variant) | not provided | |
| | | Single nucleotide variant (5 prime UTR variant) | Hereditary episodic ataxia +2 more | |
| | | Single nucleotide variant (5 prime UTR variant) | Hereditary episodic ataxia +2 more | |
| | KCNA1, LOC130007218 (S13L) | Single nucleotide variant (missense variant) | not provided | |
| | KCNA1, LOC130007218 (H18fs) | Duplication (frameshift variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | Episodic ataxia type 1 +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | Episodic ataxia type 1 +1 more | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | Episodic ataxia type 1 +1 more | |
| | | Single nucleotide variant (synonymous variant) | Myokymia +3 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | Episodic ataxia type 1 +1 more | |
| | | Single nucleotide variant (synonymous variant) | not provided +3 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | Episodic ataxia type 1 +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | GConflicting classifications of pathogenicity |
| | | Single nucleotide variant (missense variant) | not provided +1 more | GPathogenic/Likely pathogenic |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (missense variant) | not provided +1 more | |
| | | Single nucleotide variant (synonymous variant) | Myokymia +3 more | |
| | | Single nucleotide variant (missense variant) | Episodic ataxia type 1 +1 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (synonymous variant) | Myokymia +3 more | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (missense variant) | not provided | |
| | | Single nucleotide variant (3 prime UTR variant) | Myokymia +3 more | |
| | | Single nucleotide variant (3 prime UTR variant) | not provided +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Myokymia +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Episodic ataxia type 1 +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Myokymia +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Myokymia +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Episodic ataxia type 1 +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Hereditary episodic ataxia +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Hereditary episodic ataxia +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Episodic ataxia type 1 +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | not provided +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Myokymia +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | not provided +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | Hereditary episodic ataxia +2 more | |
| | | Single nucleotide variant (3 prime UTR variant) | not provided +2 more | |
| | | Copy number gain | See cases | |
| | | Copy number gain | See cases | |
| | | Copy number gain | See cases | |
| | | Single nucleotide variant (missense variant) | not provided | |