1-47416367-G-C

Position:

• chr1-47416367-G-C

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_012186.3(FOXE3):​c.52G>C​(p.Ala18Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000107 in 1,211,108 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: FOXE3 NM_012186.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2 O:1
• Conservation: PhyloP100: 0.707

Genes affected

FOXE3 (HGNC:3808): (forkhead box E3) This intronless gene belongs to the forkhead family of transcription factors, which is characterized by a distinct forkhead domain. The protein encoded functions as a lens-specific transcription factor and plays an important role in vertebrate lens formation. Mutations in this gene are associated with anterior segment mesenchymal dysgenesis and congenital primary aphakia. [provided by RefSeq, Dec 2009]

LINC01389 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.3323745).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FOXE3	NM_012186.3	c.52G>C	p.Ala18Pro	missense_variant	1/1	ENST00000335071.4
LINC01389	NR_126355.1	n.29-6466C>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FOXE3	ENST00000335071.4	c.52G>C	p.Ala18Pro	missense_variant	1/1		NM_012186.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.0000143 AC: 1 AN: 69694 Hom.: 0 AF XY: 0.0000246 AC XY: 1 AN XY: 40578

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 SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000389

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000107 AC: 13 AN: 1211108 Hom.: 0 Cov.: 30 AF XY: 0.0000118 AC XY: 7 AN XY: 593846

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: 0.00

Gnomad4 FIN exome AF: 0.0000375

Gnomad4 NFE exome AF: 0.0000122

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2 Other:1

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Congenital primary aphakia;C1862839:Anterior segment dysgenesis Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 17, 2024

This sequence change replaces alanine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 18 of the FOXE3 protein (p.Ala18Pro). This variant is present in population databases (no rsID available, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with FOXE3-related conditions. ClinVar contains an entry for this variant (Variation ID: 856708). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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. -

Cardiovascular phenotype Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 26, 2023

The p.A18P variant (also known as c.52G>C), located in coding exon 1 of the FOXE3 gene, results from a G to C substitution at nucleotide position 52. The alanine at codon 18 is replaced by proline, an amino acid with highly similar properties. This alteration has been reported in an exome cohort (Stranneheim H et al. Genome Med, 2021 Mar;13:40). This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

not provided Other:1

not provided, no classification provided

phenotyping only

GenomeConnect - Brain Gene Registry

-

Variant interpreted as Uncertain significance and reported on 04-24-2019 by lab or GTR ID 500031. Assertions are reported exactly as they appear on the patient provided laboratory report. GenomeConnect does not attempt to reinterpret the variant. The IDDRC-CTSA National Brain Gene Registry (BGR) is a study funded by the U.S. National Center for Advancing Translational Sciences (NCATS) and includes 13 Intellectual and Developmental Disability Research Center (IDDRC) institutions. The study is led by Principal Investigator John Constantino MD PhD from Washington University. The BGR is a data commons of gene variants paired with subject clinical information. This database helps scientists learn more about genetic changes and their impact on the brain and behavior. Participation in the Brain Gene Registry requires participation in GenomeConnect. More information about the Brain Gene Registry can be found on the study website - https://braingeneregistry.wustl.edu/. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.075
BayesDel_addAF	Benign	-0.0075	T
BayesDel_noAF	Benign	-0.13
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.087	T
Eigen	Benign	-0.47
Eigen_PC	Benign	-0.66
FATHMM_MKL	Benign	0.19	N
LIST_S2	Benign	0.45	T
M_CAP	Pathogenic	0.97	D
MetaRNN	Benign	0.33	T
MetaSVM	Uncertain	-0.028	T
MutationAssessor	Benign	0.69	N
MutationTaster	Benign	0.96	N
PrimateAI	Pathogenic	0.89	D
PROVEAN	Benign	-0.66	N
REVEL	Benign	0.22
Sift	Benign	0.081	T
Sift4G	Uncertain	0.049	D
Polyphen		0.98	D
Vest4		0.28
MutPred		0.25		Gain of relative solvent accessibility (P = 0.0082);
MVP		0.63
ClinPred		0.17	T
GERP RS		1.6
Varity_R		0.090
gMVP		0.16

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs1401137576; hg19: chr1-47882039;