1-216175439-G-A

Position:

chr1-216175439-G-A

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_206933.4(USH2A):c.4440C>T(p.Ser1480=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00194 in 1,613,764 control chromosomes in the GnomAD database, including 65 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 31 hom., cov: 32)

Exomes 𝑓: 0.0011 ( 34 hom. )

Consequence

USH2A
NM_206933.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 2.00

Variant links:

Genes affected

USH2A (HGNC:12601): (usherin) This gene encodes a protein that contains laminin EGF motifs, a pentaxin domain, and many fibronectin type III motifs. The protein is found in the basement membrane, and may be important in development and homeostasis of the inner ear and retina. Mutations within this gene have been associated with Usher syndrome type IIa and retinitis pigmentosa. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

USH2A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.4).

BP6

Variant 1-216175439-G-A is Benign according to our data. Variant chr1-216175439-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 48516.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=2 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0104 (1577/152250) while in subpopulation AFR AF= 0.0366 (1519/41546). AF 95% confidence interval is 0.035. There are 31 homozygotes in gnomad4. There are 764 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 31 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
USH2A	NM_206933.4 linkuse as main transcript	c.4440C>T	p.Ser1480=	synonymous_variant	21/72	ENST00000307340.8	NP_996816.3
USH2A	NM_007123.6 linkuse as main transcript	c.4440C>T	p.Ser1480=	synonymous_variant	21/21		NP_009054.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
USH2A	ENST00000307340.8 linkuse as main transcript	c.4440C>T	p.Ser1480=	synonymous_variant	21/72	1	NM_206933.4	ENSP00000305941	P1	O75445-1
USH2A	ENST00000366942.3 linkuse as main transcript	c.4440C>T	p.Ser1480=	synonymous_variant	21/21	1		ENSP00000355909		O75445-2
USH2A	ENST00000674083.1 linkuse as main transcript	c.4440C>T	p.Ser1480=	synonymous_variant	21/73			ENSP00000501296		O75445-3

Frequencies

GnomAD3 genomes

AF:

0.0102

AC:

1553

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0361

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00216

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00765

GnomAD3 exomes

AF:

0.00256

AC:

641

AN:

250676

Hom.:

AF XY:

0.00171

AC XY:

232

AN XY:

135476

show subpopulations

Gnomad AFR exome

AF:

0.0353

Gnomad AMR exome

AF:

0.00142

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000707

Gnomad OTH exome

AF:

0.00148

GnomAD4 exome

AF:

0.00107

AC:

1560

AN:

1461514

Hom.:

Cov.:

AF XY:

0.000926

AC XY:

673

AN XY:

727046

show subpopulations

Gnomad4 AFR exome

AF:

0.0384

Gnomad4 AMR exome

AF:

0.00154

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000297

Gnomad4 OTH exome

AF:

0.00275

GnomAD4 genome

AF:

0.0104

AC:

1577

AN:

152250

Hom.:

Cov.:

AF XY:

0.0103

AC XY:

764

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.0366

Gnomad4 AMR

AF:

0.00216

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00757

Alfa

AF:

0.00280

Hom.:

Bravo

AF:

0.0112

Asia WGS

AF:

0.00577

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Usher syndrome type 2A

Benign:3

Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Nov 04, 2023	- -

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Sep 14, 2011	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	May 13, 2013	Ser1480Ser in Exon 21A of USH2A: This variant is not expected to have clinical s ignificance because it does not alter an amino acid residue, is not located with in the splice consensus sequence, and has been identified in 3.3% (146/4406) of African American chromosomes from a broad population by the NHLBI Exome Sequenci ng Project (http://evs.gs.washington.edu/EVS; dbSNP rs111632670). -

not provided

Benign:2

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -

Retinitis pigmentosa 39

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Nov 04, 2023

- -

Retinitis pigmentosa

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.40

CADD

Benign

5.1

DANN

Benign

0.60

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

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