NM_005249.5(FOXG1):c.295C>G (p.Pro99Ala) AND Rett syndrome, congenital variant

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Aug 14, 2021
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:: RCV001955342.4

Allele description [Variation Report for NM_005249.5(FOXG1):c.295C>G (p.Pro99Ala)]

NM_005249.5(FOXG1):c.295C>G (p.Pro99Ala)

Gene:

FOXG1:forkhead box G1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

14q12

Genomic location:

Preferred name:

NM_005249.5(FOXG1):c.295C>G (p.Pro99Ala)

HGVS:

NC_000014.9:g.28767574C>G
NG_009367.1:g.5494C>G
NM_005249.5:c.295C>GMANE SELECT
NP_005240.3:p.Pro99Ala
NC_000014.8:g.29236780C>G

Protein change:

P99A

Links:

dbSNP: rs2138660575

NCBI 1000 Genomes Browser:

rs2138660575

Molecular consequence:

NM_005249.5:c.295C>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Rett syndrome, congenital variant
Identifiers:: MONDO: MONDO:0013270; MedGen: C3150705; Orphanet: 3095; OMIM: 613454

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002209220	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Aug 14, 2021)	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

SCV002209220

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Aug 14, 2021)

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	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

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV002209220.3

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

Description

This sequence change replaces proline with alanine at codon 99 of the FOXG1 protein (p.Pro99Ala). The proline residue is weakly conserved and there is a small physicochemical difference between proline and alanine. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This variant has not been reported in the literature in individuals affected with FOXG1-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt FOXG1 protein function. 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

Last Updated: Sep 29, 2024

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