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NM_172107.4(KCNQ2):c.712A>G (p.Ile238Val) AND Complex neurodevelopmental disorder

Germline classification:
not provided (1 submission)
Review status:
no classification provided
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:
RCV003315358.1

Allele description [Variation Report for NM_172107.4(KCNQ2):c.712A>G (p.Ile238Val)]

NM_172107.4(KCNQ2):c.712A>G (p.Ile238Val)

Gene:
KCNQ2:potassium voltage-gated channel subfamily Q member 2 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
20q13.33
Genomic location:
Preferred name:
NM_172107.4(KCNQ2):c.712A>G (p.Ile238Val)
HGVS:
  • NC_000020.11:g.63442510T>C
  • NG_009004.2:g.35131A>G
  • NM_004518.6:c.712A>G
  • NM_172106.3:c.712A>G
  • NM_172107.4:c.712A>GMANE SELECT
  • NM_172108.5:c.712A>G
  • NM_172109.3:c.712A>G
  • NP_004509.2:p.Ile238Val
  • NP_742104.1:p.Ile238Val
  • NP_742105.1:p.Ile238Val
  • NP_742106.1:p.Ile238Val
  • NP_742107.1:p.Ile238Val
  • NC_000020.10:g.62073863T>C
  • NM_172107.2:c.712A>G
Protein change:
I238V
Links:
dbSNP: rs747050726
NCBI 1000 Genomes Browser:
rs747050726
Molecular consequence:
  • NM_004518.6:c.712A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_172106.3:c.712A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_172107.4:c.712A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_172108.5:c.712A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_172109.3:c.712A>G - missense variant - [Sequence Ontology: SO:0001583]
Functional consequence:
  • Normal rate of activation [Functional Epilepsy Nomenclature for Ion Channels: FENICS-0011]
  • Normal voltage dependence of activation [Functional Epilepsy Nomenclature for Ion Channels: FENICS-0032]
  • Severe decrease in peak current [Functional Epilepsy Nomenclature for Ion Channels: FENICS-0087]

Condition(s)

Name:
Complex neurodevelopmental disorder
Identifiers:
MONDO: MONDO:0100038; MedGen: C5568766

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV004015075Channelopathy-Associated Epilepsy Research Center
no classification provided
not providednot applicableliterature only

PubMed (1)
[See all records that cite this PMID]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providednot applicablenot applicablenot providednot providednot providednot providednot providedliterature only

Citations

PubMed

High-throughput evaluation of epilepsy-associated KCNQ2 variants reveals functional and pharmacological heterogeneity.

Vanoye CG, Desai RR, Ji Z, Adusumilli S, Jairam N, Ghabra N, Joshi N, Fitch E, Helbig KL, McKnight D, Lindy AS, Zou F, Helbig I, Cooper EC, George AL Jr.

JCI Insight. 2022 Mar 8;7(5). doi:pii: e156314. 10.1172/jci.insight.156314.

PubMed [citation]
PMID:
35104249
PMCID:
PMC8983144

Details of each submission

From Channelopathy-Associated Epilepsy Research Center, SCV004015075.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedliterature only PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1not applicablenot applicablenot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024