NM_001182.4(ALDH7A1):c.1493_1495delGAG AND Pyridoxine-dependent epilepsy

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Apr 11, 2023
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV001852439.16

Allele description [Variation Report for NM_001182.4(ALDH7A1):c.1493_1495delGAG]

NM_001182.4(ALDH7A1):c.1493_1495delGAG

Gene:

ALDH7A1:aldehyde dehydrogenase 7 family member A1 [Gene - OMIM - HGNC]

Variant type:

Microsatellite

Cytogenetic location:

5q23.2

Genomic location:

Preferred name:

NM_001182.4(ALDH7A1):c.1493_1495delGAG

HGVS:

NC_000005.10:g.126546396CCT[1]
NG_008600.3:g.53992GAG[1]
NC_000005.9:g.125882086_125882088del
NC_000005.9:g.125882088CCT[1]
NM_001182.4:c.1493_1495delGAG
p.G498del

Links:

dbSNP: rs796052268

NCBI 1000 Genomes Browser:

rs796052268

Condition(s)

Name:: Pyridoxine-dependent epilepsy (EPEO4)
Synonyms:: Pyridoxine dependency; Pyridoxine dependency with seizures; Vitamin B6-dependent seizures; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0009945; MedGen: C1849508; Orphanet: 3006; OMIM: 266100

Recent activity

Clear Turn Off Turn On

Variovorax sp. B25 16S ribosomal RNA gene, partial sequence
Variovorax sp. B25 16S ribosomal RNA gene, partial sequence
gi|471464495|gb|KC693707.1|

Nucleotide

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

Help

Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002233515	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Apr 7, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV004050051	Genome-Nilou Lab	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Apr 11, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV002233515

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Apr 7, 2022)

germline

clinical testing

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

SCV004050051

Genome-Nilou Lab

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Apr 11, 2023)

germline

clinical testing

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

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	no	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

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 Labcorp Genetics (formerly Invitae), Labcorp, SCV002233515.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This variant, c.1493_1495del, results in the deletion of 1 amino acid(s) of the ALDH7A1 protein (p.Gly498del), but otherwise preserves the integrity of the reading frame. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ALDH7A1-related conditions. ClinVar contains an entry for this variant (Variation ID: 204860). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Genome-Nilou Lab, SCV004050051.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	no	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Oct 13, 2024

ClinVar

Relating variation to medicine