chr14-28767780-G-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005249.5(FOXG1):c.501G>T(p.Glu167Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,450,144 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. E167E) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FOXG1
NM_005249.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.14

Publications

0 publications found

Variant links:

Genes affected

FOXG1 (HGNC:3811): (forkhead box G1) This locus encodes a member of the fork-head transcription factor family. The encoded protein, which functions as a transcriptional repressor, is highly expressed in neural tissues during brain development. Mutations at this locus have been associated with Rett syndrome and a diverse spectrum of neurodevelopmental disorders defined as part of the FOXG1 syndrome. This gene is disregulated in many types of cancer and is the target of multiple microRNAs that regulate the proliferation of tumor cells. [provided by RefSeq, Jul 2020]

FOXG1 links:

LINC01551 (HGNC:19828): (long intergenic non-protein coding RNA 1551)

LINC01551 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19882414).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FOXG1	NM_005249.5 link	c.501G>T	p.Glu167Asp	missense_variant	Exon 1 of 1	ENST00000313071.7	NP_005240.3	P55316

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FOXG1	ENST00000313071.7 link	c.501G>T	p.Glu167Asp	missense_variant	Exon 1 of 1	6	NM_005249.5	ENSP00000339004.3	P55316
FOXG1	ENST00000706482.1 link	c.501G>T	p.Glu167Asp	missense_variant	Exon 2 of 2			ENSP00000516406.1	P55316
LINC01551	ENST00000675861.1 link	n.374+1767G>T		intron_variant	Intron 1 of 3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000430

AC:

AN:

232292

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000296

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000138

AC:

AN:

1450144

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

721086

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33412

American (AMR)

AF:

0.0000226

AC:

AN:

44338

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26046

East Asian (EAS)

AF:

0.00

AC:

AN:

39524

South Asian (SAS)

AF:

0.0000117

AC:

AN:

85602

European-Finnish (FIN)

AF:

0.00

AC:

AN:

45566

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5424

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110092

Other (OTH)

AF:

0.00

AC:

AN:

60140

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Rett syndrome, congenital variant

Uncertain:1

May 29, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 167 of the FOXG1 protein (p.Glu167Asp). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD 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 with a negative predictive value of 95%. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.026

BayesDel_noAF

Benign

-0.28

CADD

Uncertain

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.29

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.35

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.58

M_CAP

Pathogenic

0.79

MetaRNN

Benign

0.20

MetaSVM

Benign

-0.34

MutationAssessor

Benign

0.27

PhyloP100

2.1

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-0.30

REVEL

Benign

0.17

Sift

Benign

0.12

Sift4G

Benign

0.34

Polyphen

0.17

Vest4

0.099

MutPred

0.27

Gain of catalytic residue at K164 (P = 0.1123);

MVP

0.36

ClinPred

0.15

GERP RS

2.2

Varity_R

0.13

gMVP

0.49

Mutation Taster

=92/8

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over