rs1239032275

Positions:

chr1-216289309-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PM1PM2BP4_ModerateBP6_Moderate

The NM_206933.4(USH2A):c.1942A>G(p.Thr648Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. T648T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

USH2A
NM_206933.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.63

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 Uncertain_significance. Variant got 0 ACMG points.

PM1

In a domain Laminin EGF-like 3 (size 52) in uniprot entity USH2A_HUMAN there are 17 pathogenic changes around while only 2 benign (89%) in NM_206933.4

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20393437).

BP6

Variant 1-216289309-T-C is Benign according to our data. Variant chr1-216289309-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 506005.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
USH2A	NM_206933.4 linkuse as main transcript	c.1942A>G	p.Thr648Ala	missense_variant	11/72	ENST00000307340.8
USH2A	NM_007123.6 linkuse as main transcript	c.1942A>G	p.Thr648Ala	missense_variant	11/21

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
USH2A	ENST00000307340.8 linkuse as main transcript	c.1942A>G	p.Thr648Ala	missense_variant	11/72	1	NM_206933.4	P1	O75445-1
USH2A	ENST00000366942.3 linkuse as main transcript	c.1942A>G	p.Thr648Ala	missense_variant	11/21	1			O75445-2
USH2A	ENST00000674083.1 linkuse as main transcript	c.1942A>G	p.Thr648Ala	missense_variant	11/73				O75445-3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152184

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461682

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727150

show subpopulations

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:

0.00

Gnomad4 NFE exome

AF:

0.00000720

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Aug 10, 2017

p.Thr648Ala in exon 11 of USH2A: This variant is not expected to have clinical s ignificance due to a lack of conservation across species, including mammals. Of note, 6 mammals have an alanine (Ala) at this position. In addition, computation al prediction tools do not suggest a high likelihood of impact to the protein. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Benign

8.5

DANN

Benign

0.60

DEOGEN2

Benign

0.066

T;.

Eigen

Benign

-0.94

Eigen_PC

Benign

-0.88

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.52

T;T

M_CAP

Benign

0.040

MetaRNN

Benign

0.20

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

L;L

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.32

PROVEAN

Benign

-1.9

N;D

REVEL

Benign

0.13

Sift

Benign

0.17

T;T

Sift4G

Benign

0.27

T;T

Polyphen

0.0

B;B

Vest4

0.30

MutPred

0.33

Loss of loop (P = 0.1242);Loss of loop (P = 0.1242);

MVP

0.65

MPC

0.031

ClinPred

0.17

GERP RS

4.1

Varity_R

0.059

gMVP

0.63

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