Genetic Variant FOXG1:p.Pro78_Pro79dup (chr14-28767497-A-AGCCGCC) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP6BS2

The NM_005249.5(FOXG1):c.231_236dupGCCGCC(p.Pro78_Pro79dup) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000337 in 978,466 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

FOXG1
NM_005249.5 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 2.33

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 made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP6

Variant 14-28767497-A-AGCCGCC is Benign according to our data. Variant chr14-28767497-A-AGCCGCC is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 487321.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FOXG1	NM_005249.5 link	c.231_236dupGCCGCC	p.Pro78_Pro79dup	disruptive_inframe_insertion	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.231_236dupGCCGCC	p.Pro78_Pro79dup	disruptive_inframe_insertion	Exon 1 of 1	6	NM_005249.5	ENSP00000339004.3	P55316
FOXG1	ENST00000706482.1 link	c.231_236dupGCCGCC	p.Pro78_Pro79dup	disruptive_inframe_insertion	Exon 2 of 2			ENSP00000516406.1	P55316
LINC01551	ENST00000675861.1 link	n.374+1497_374+1502dupGCCGCC		intron_variant	Intron 1 of 3

Frequencies

GnomAD3 genomes

AF:

0.0000357

AC:

AN:

139878

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000226

Gnomad FIN

AF:

0.000252

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000314

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000334

AC:

AN:

838492

Hom.:

Cov.:

AF XY:

0.0000327

AC XY:

AN XY:

398112

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000221

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000307

Gnomad4 OTH exome

AF:

0.0000347

GnomAD4 genome

AF:

0.0000357

AC:

AN:

139974

Hom.:

Cov.:

AF XY:

0.0000587

AC XY:

AN XY:

68104

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000226

Gnomad4 FIN

AF:

0.000252

Gnomad4 NFE

AF:

0.0000314

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Sep 04, 2019

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed in large population cohorts (Lek et al., 2016); In-frame duplication in a repetitive region with no known function; Has not been previously published as pathogenic or benign to our knowledge -

Inborn genetic diseases

Benign:1

Dec 14, 2016

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Rett syndrome, congenital variant

Benign:1

Oct 15, 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

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over