chr6-1611567-GGGCGGC-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM1BS1_SupportingBS2

The NM_001453.3(FOXC1):c.1136_1141delGCGGCG(p.Gly379_Gly380del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000621 in 1,142,748 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G379G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000061 ( 0 hom., cov: 24)

Exomes 𝑓: 0.000062 ( 1 hom. )

Consequence

FOXC1
NM_001453.3 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.46

Publications

6 publications found

Variant links:

Genes affected

FOXC1 (HGNC:3800): (forkhead box C1) This gene belongs to the forkhead family of transcription factors which is characterized by a distinct DNA-binding forkhead domain. The specific function of this gene has not yet been determined; however, it has been shown to play a role in the regulation of embryonic and ocular development. Mutations in this gene cause various glaucoma phenotypes including primary congenital glaucoma, autosomal dominant iridogoniodysgenesis anomaly, and Axenfeld-Rieger anomaly. [provided by RefSeq, Jul 2008]

FOXC1 Gene-Disease associations (from GenCC):

anterior segment dysgenesis 3
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
Axenfeld-Rieger syndrome type 3
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
aniridia
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
Axenfeld anomaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Axenfeld-Rieger syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
isolated aniridia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Peters anomaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Rieger anomaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

FOXC1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 14 uncertain in NM_001453.3

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0000614 (9/146528) while in subpopulation SAS AF = 0.00104 (5/4794). AF 95% confidence interval is 0.00041. There are 0 homozygotes in GnomAd4. There are 6 alleles in the male GnomAd4 subpopulation. Median coverage is 24. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd4 at 9 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001453.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FOXC1	NM_001453.3	MANE Select	c.1136_1141delGCGGCG	p.Gly379_Gly380del	disruptive_inframe_deletion	Exon 1 of 1	NP_001444.2	W6CJ52

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FOXC1	ENST00000645831.2	MANE Select	c.1136_1141delGCGGCG	p.Gly379_Gly380del	disruptive_inframe_deletion	Exon 1 of 1	ENSP00000493906.1	Q12948

Frequencies

GnomAD3 genomes

AF:

0.0000615

AC:

AN:

146426

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:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000606

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000622

AC:

AN:

996220

Hom.:

AF XY:

0.0000672

AC XY:

AN XY:

475954

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

19812

American (AMR)

AF:

0.00

AC:

AN:

5788

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

11264

East Asian (EAS)

AF:

0.000360

AC:

AN:

11126

South Asian (SAS)

AF:

0.000397

AC:

AN:

22672

European-Finnish (FIN)

AF:

0.00

AC:

AN:

15102

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2442

European-Non Finnish (NFE)

AF:

0.0000517

AC:

AN:

871222

Other (OTH)

AF:

0.000109

AC:

AN:

36792

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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

AF:

0.0000614

AC:

AN:

146528

Hom.:

Cov.:

AF XY:

0.0000841

AC XY:

AN XY:

71316

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

40870

American (AMR)

AF:

0.00

AC:

AN:

14764

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3388

East Asian (EAS)

AF:

0.00

AC:

AN:

4836

South Asian (SAS)

AF:

0.00104

AC:

AN:

4794

European-Finnish (FIN)

AF:

0.00

AC:

AN:

8696

Middle Eastern (MID)

AF:

0.00

AC:

AN:

290

European-Non Finnish (NFE)

AF:

0.0000607

AC:

AN:

65952

Other (OTH)

AF:

0.00

AC:

AN:

2034

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.547

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

107

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Axenfeld-Rieger syndrome type 3 (2)

Axenfeld-Rieger syndrome type 3;C5975707:Anterior segment dysgenesis 3 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

2.5

Mutation Taster

=193/7

polymorphism

(source)

Splicing

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over