Variant rs376633374 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PVS1_StrongBS2

The NM_012418.4(FSCN2):c.72del(p.Thr25GlnfsTer120) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000354 in 1,609,000 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00035 ( 3 hom. )

Consequence

FSCN2
NM_012418.4 frameshift

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 0.644

Variant links:

Genes affected

FSCN2 (HGNC:3960): (fascin actin-bundling protein 2, retinal) This gene encodes a member of the fascin protein family. Fascins crosslink actin into filamentous bundles within dynamic cell extensions. This family member is proposed to play a role in photoreceptor disk morphogenesis. A mutation in this gene results in one form of autosomal dominant retinitis pigmentosa and macular degeneration. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

FSCN2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 4 pathogenic variants in the truncated region.

BS2

High AC in GnomAd4 at 60 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FSCN2	NM_012418.4 linkuse as main transcript	c.72del	p.Thr25GlnfsTer120	frameshift_variant	1/5	ENST00000417245.7	NP_036550.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FSCN2	ENST00000417245.7 linkuse as main transcript	c.72del	p.Thr25GlnfsTer120	frameshift_variant	1/5	1	NM_012418.4	ENSP00000388716	P1	O14926-1
FSCN2	ENST00000334850.7 linkuse as main transcript	c.72del	p.Thr25GlnfsTer120	frameshift_variant	1/5	5		ENSP00000334665		O14926-2

Frequencies

GnomAD3 genomes

AF:

0.000388

AC:

AN:

152250

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:

0.0111

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000931

AC:

222

AN:

238454

Hom.:

AF XY:

0.000930

AC XY:

121

AN XY:

130148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0123

Gnomad SAS exome

AF:

0.000169

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000340

GnomAD4 exome

AF:

0.000349

AC:

509

AN:

1456632

Hom.:

Cov.:

AF XY:

0.000355

AC XY:

257

AN XY:

724264

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000226

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0112

Gnomad4 SAS exome

AF:

0.000339

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.000498

GnomAD4 genome

AF:

0.000394

AC:

AN:

152368

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74512

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0114

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.000438

Asia WGS

AF:

0.00549

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:2Uncertain:2Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 23, 2024	- -
Likely benign, no assertion criteria provided	literature only	Department of Ophthalmology and Visual Sciences Kyoto University	-	- -

Retinitis pigmentosa 30

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 01, 2008

- -

Macular degeneration

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 01, 2008

- -

Leber congenital amaurosis

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Molecular Diagnostics Laboratory, Seoul National University Hospital

Sep 18, 2014

- -

Retinal dystrophy

Uncertain:1

Uncertain significance, criteria provided, single submitter

research

Dept Of Ophthalmology, Nagoya University

Oct 01, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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

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