3-138945739-G-GGCTGGGCTGGCAGGGCTGA

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_Strong PM2 PP5

The NM_023067.4(FOXL2):c.983_984insTCAGCCCTGCCAGCCCAGC(p.Thr329GlnfsTer211) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: FOXL2 NM_023067.4 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 2.23

Genes affected

FOXL2 (HGNC:1092): (forkhead box L2) This gene encodes a forkhead transcription factor. The protein contains a fork-head DNA-binding domain and may play a role in ovarian development and function. Expansion of a polyalanine repeat region and other mutations in this gene are a cause of blepharophimosis syndrome and premature ovarian failure 3. [provided by RefSeq, Jul 2016]

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 5 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 3-138945739-G-GGCTGGGCTGGCAGGGCTGA is Pathogenic according to our data. Variant chr3-138945739-G-GGCTGGGCTGGCAGGGCTGA is described in ClinVar as [Pathogenic]. Clinvar id is 162044.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FOXL2	NM_023067.4	c.983_984insTCAGCCCTGCCAGCCCAGC	p.Thr329GlnfsTer211	frameshift_variant	1/1	ENST00000648323.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FOXL2	ENST00000648323.1	c.983_984insTCAGCCCTGCCAGCCCAGC	p.Thr329GlnfsTer211	frameshift_variant	1/1		NM_023067.4	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: no assertion criteria provided

Submissions by phenotype

Blepharophimosis, ptosis, and epicanthus inversus syndrome Pathogenic:2

Pathogenic, no assertion criteria provided	clinical testing	Wessex Regional Genetics Laboratory, Salisbury District Hospital	Jan 01, 2015	- -
Pathogenic, no assertion criteria provided	clinical testing	Center for Medical Genetics Ghent, University of Ghent	Aug 05, 2011	- -

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs672601358; hg19: chr3-138664581;