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NM_172107.4(KCNQ2):c.2331dup (p.Glu778fs) AND Developmental and epileptic encephalopathy, 7

Germline classification:
Pathogenic (1 submission)
Last evaluated:
Feb 3, 2022
Review status:
1 star out of maximum of 4 stars
criteria provided, single submitter
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:
RCV002466343.2

Allele description [Variation Report for NM_172107.4(KCNQ2):c.2331dup (p.Glu778fs)]

NM_172107.4(KCNQ2):c.2331dup (p.Glu778fs)

Gene:
KCNQ2:potassium voltage-gated channel subfamily Q member 2 [Gene - OMIM - HGNC]
Variant type:
Duplication
Cytogenetic location:
20q13.33
Genomic location:
Preferred name:
NM_172107.4(KCNQ2):c.2331dup (p.Glu778fs)
HGVS:
  • NC_000020.11:g.63406937dup
  • NG_009004.2:g.70709dup
  • NM_001382235.1:c.2385dup
  • NM_004518.6:c.2247dup
  • NM_172106.3:c.2277dup
  • NM_172107.4:c.2331dupMANE SELECT
  • NM_172108.5:c.2238dup
  • NP_001369164.1:p.Glu796fs
  • NP_004509.2:p.Glu750fs
  • NP_742104.1:p.Glu760fs
  • NP_742105.1:p.Glu778fs
  • NP_742106.1:p.Glu747fs
  • NC_000020.10:g.62038290dup
  • NM_172107.2:c.2331dup
Protein change:
E747fs
Molecular consequence:
  • NM_001382235.1:c.2385dup - frameshift variant - [Sequence Ontology: SO:0001589]
  • NM_004518.6:c.2247dup - frameshift variant - [Sequence Ontology: SO:0001589]
  • NM_172106.3:c.2277dup - frameshift variant - [Sequence Ontology: SO:0001589]
  • NM_172107.4:c.2331dup - frameshift variant - [Sequence Ontology: SO:0001589]
  • NM_172108.5:c.2238dup - frameshift variant - [Sequence Ontology: SO:0001589]

Condition(s)

Name:
Developmental and epileptic encephalopathy, 7 (DEE7)
Synonyms:
Early infantile epileptic encephalopathy 7; KCNQ2-Related Neonatal Epileptic Encephalopathy
Identifiers:
MONDO: MONDO:0013387; MedGen: C3150986; Orphanet: 439218; OMIM: 613720

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV002761298Diagnostic Genetics, Severance Hospital, Yonsei University College of Medicine
criteria provided, single submitter

(ACMG Guidelines, 2015)		Pathogenic
(Feb 3, 2022) 		de novoclinical testing

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

Help

Summary from all submissions

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

Citations

PubMed

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

Details of each submission

From Diagnostic Genetics, Severance Hospital, Yonsei University College of Medicine, SCV002761298.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1de novoyesnot providednot providednot providednot providednot providednot providednot provided

Last Updated: May 26, 2024