Genetic Variant FOXG1:p.Gly166Gly (chr14-28767777-G-C) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_005249.5(FOXG1):c.498G>C(p.Gly166Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,448,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. G166G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

FOXG1
NM_005249.5 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 3.23

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: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.56).

BP6

Variant 14-28767777-G-C is Benign according to our data. Variant chr14-28767777-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 211033.

BP7

Synonymous conserved (PhyloP=3.23 with no splicing effect.

BS2

High AC in GnomAdExome4 at 26 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FOXG1	NM_005249.5 link	c.498G>C	p.Gly166Gly	synonymous_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.498G>C	p.Gly166Gly	synonymous_variant	Exon 1 of 1	6	NM_005249.5	ENSP00000339004.3	P55316
FOXG1	ENST00000706482.1 link	c.498G>C	p.Gly166Gly	synonymous_variant	Exon 2 of 2			ENSP00000516406.1	P55316
LINC01551	ENST00000675861.1 link	n.374+1764G>C		intron_variant	Intron 1 of 3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000437

AC:

AN:

229064

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000965

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000180

AC:

AN:

1448098

Hom.:

Cov.:

AF XY:

0.0000194

AC XY:

AN XY:

719970

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33386

American (AMR)

AF:

0.00

AC:

AN:

44190

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26032

East Asian (EAS)

AF:

0.00

AC:

AN:

39456

South Asian (SAS)

AF:

0.00

AC:

AN:

85434

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5334

European-Non Finnish (NFE)

AF:

0.0000225

AC:

AN:

1109584

Other (OTH)

AF:

0.0000166

AC:

AN:

60082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.546

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.:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 18, 2014

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Rett syndrome, congenital variant

Benign:1

Oct 27, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.56

CADD

Benign

(source)

DANN

Benign

0.87

PhyloP100

3.2

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