6-1611567-GGGCGGCGGC-GGGCGGCGGCGGCGGCGGC

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_001453.3(FOXC1):​c.1133_1141dup​(p.Gly378_Gly380dup) variant causes a inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 1,142,770 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000096 ( 0 hom., cov: 24)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

FOXC1
NM_001453.3 inframe_insertion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 0.420
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000955 (14/146528) while in subpopulation SAS AF= 0.00188 (9/4794). AF 95% confidence interval is 0.000979. There are 0 homozygotes in gnomad4. There are 11 alleles in male gnomad4 subpopulation. Median coverage is 24. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FOXC1NM_001453.3 linkuse as main transcriptc.1133_1141dup p.Gly378_Gly380dup inframe_insertion 1/1 ENST00000645831.2 NP_001444.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FOXC1ENST00000645831.2 linkuse as main transcriptc.1133_1141dup p.Gly378_Gly380dup inframe_insertion 1/1 NM_001453.3 ENSP00000493906 P1

Frequencies

GnomAD3 genomes
AF:
0.0000956
AC:
14
AN:
146426
Hom.:
0
Cov.:
24
show subpopulations
Gnomad AFR
AF:
0.0000491
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000678
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000412
Gnomad SAS
AF:
0.00188
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000106
AC:
106
AN:
996242
Hom.:
0
Cov.:
32
AF XY:
0.000118
AC XY:
56
AN XY:
475962
show subpopulations
Gnomad4 AFR exome
AF:
0.000101
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000539
Gnomad4 SAS exome
AF:
0.00203
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000528
Gnomad4 OTH exome
AF:
0.000163
GnomAD4 genome
AF:
0.0000955
AC:
14
AN:
146528
Hom.:
0
Cov.:
24
AF XY:
0.000154
AC XY:
11
AN XY:
71316
show subpopulations
Gnomad4 AFR
AF:
0.0000489
Gnomad4 AMR
AF:
0.0000677
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000414
Gnomad4 SAS
AF:
0.00188
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, no assertion criteria providedresearchGharavi Laboratory, Columbia UniversitySep 16, 2018- -
Axenfeld-Rieger syndrome type 3 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 22, 2022This variant, c.1133_1141dup, results in the insertion of 3 amino acid(s) of the FOXC1 protein (p.Gly378_Gly380dup), but otherwise preserves the integrity of the reading frame. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with FOXC1-related conditions. ClinVar contains an entry for this variant (Variation ID: 591917). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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

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.

Other links and lift over

dbSNP: rs76840944; hg19: chr6-1611802; API