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NM_001127222.2(CACNA1A):c.4988G>A (p.Arg1663Gln) AND Episodic ataxia type 2

Germline classification:
no classifications from unflagged records (1 submission)
Last evaluated:
Mar 23, 2024
Review status:
no classifications from unflagged records
Somatic classification
of clinical impact:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Somatic classification
of oncogenicity:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Record status:
current
Accession:
RCV000679889.10

Allele description [Variation Report for NM_001127222.2(CACNA1A):c.4988G>A (p.Arg1663Gln)]

NM_001127222.2(CACNA1A):c.4988G>A (p.Arg1663Gln)

Gene:
CACNA1A:calcium voltage-gated channel subunit alpha1 A [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
19p13.13
Genomic location:
Preferred name:
NM_001127222.2(CACNA1A):c.4988G>A (p.Arg1663Gln)
HGVS:
  • NC_000019.10:g.13235693C>T
  • NG_011569.1:g.275768G>A
  • NM_000068.4:c.5006G>A
  • NM_001127221.2:c.4991G>A
  • NM_001127222.2:c.4988G>AMANE SELECT
  • NM_001174080.2:c.4997G>A
  • NM_023035.3:c.5006G>A
  • NP_000059.3:p.Arg1669Gln
  • NP_001120693.1:p.Arg1664Gln
  • NP_001120693.1:p.Arg1664Gln
  • NP_001120694.1:p.Arg1663Gln
  • NP_001167551.1:p.Arg1666Gln
  • NP_075461.2:p.Arg1669Gln
  • LRG_7t1:c.4991G>A
  • LRG_7:g.275768G>A
  • LRG_7p1:p.Arg1664Gln
  • NC_000019.9:g.13346507C>T
  • NM_000068.2:c.4991G>A
  • NM_001127221.1:c.4991G>A
  • NM_001127221.2:c.4991G>A
  • NM_023035.2:c.5006G>A
Protein change:
R1663Q
Links:
UniProtKB/Swiss-Prot: VAR_063691; dbSNP: rs121908247
NCBI 1000 Genomes Browser:
rs121908247
Molecular consequence:
  • NM_000068.4:c.5006G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001127221.2:c.4991G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001127222.2:c.4988G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001174080.2:c.4997G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_023035.3:c.5006G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Episodic ataxia type 2 (EA2)
Synonyms:
Episodic ataxia with nystagmus; Nystagmus-associated episodic ataxia; Cerebellopathy, hereditary paroxysmal; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0007163; MedGen: C1720416; Orphanet: 97; OMIM: 108500

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Assertion and evidence details

No clinical assertions found. See "Flagged submissions" below.

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedde novoyesnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Early onset, non fluctuating spinocerebellar ataxia and a novel missense mutation in CACNA1A gene.

Tonelli A, D'Angelo MG, Salati R, Villa L, Germinasi C, Frattini T, Meola G, Turconi AC, Bresolin N, Bassi MT.

J Neurol Sci. 2006 Feb 15;241(1-2):13-7. Epub 2005 Dec 2.

PubMed [citation]
PMID:
16325861

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]
PMID:
25741868
PMCID:
PMC4544753
See all PubMed Citations (3)

Details of each submission

From Baylor Genetics, SCV000807290.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing
(GTR000508680.4)
PubMed (3)

Description

This mutation has been previously reported as disease-causing and was found four times in our laboratory as de novo findings in affected individuals.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1de novoyesnot providednot providednot provided
(GTR000508680.4)
not providednot providednot providednot provided

Flagged submissions

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000807290Baylor Genetics
flagged submission
Reason: Outlier claim with insufficient supporting evidence
Notes: None

(ACMG Guidelines, 2015)
Uncertain significance
(Sep 1, 2017)
de novoclinical testing

PubMed (3)
[See all records that cite these PMIDs]

Last Updated: Nov 10, 2024