rs111033193

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BS1_SupportingBP4BP7

This summary comes from the ClinGen Evidence Repository: The SLC26A4 p.Asn538Asn variant has been reported in the heterozygous state in one individual with unilateral hearing loss (PMID:20621367). However, this variant is synonymous and is not predicted by computational prediction analysis, using MaxEntScan, to impact splicing (BP4, BP7). The filtering allele frequency (the lower threshold of the 95% CI of 60/24964) of the p.Asn538Asn variant in SLC26A4 is 0.19168% for African chromosomes in gnomAD, which is a higher frequency than would be expected for an autosomal recessive pathogenic variant based on the thresholds defined by the ClinGen Hearing Loss Expert Panel (BS1_Supporting; http://gnomad.broadinstitute.org). This variant has also been reported in ClinVar (Variation ID 43517). In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the Hearing Loss Expert Panel: BS1_Supporting, BP4, BP7. LINK:https://erepo.genome.network/evrepo/ui/classification/CA132671/MONDO:0010134/005

Frequency

Genomes: 𝑓 0.00063 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000083 ( 0 hom. )

Consequence

SLC26A4
NM_000441.2 splice_region, synonymous

Scores

Splicing: ADA: 0.003720

Clinical Significance

Likely benign reviewed by expert panel U:2B:6

Conservation

PhyloP100: -0.972

Publications

4 publications found

Variant links:

Genes affected

SLC26A4 (HGNC:8818): (solute carrier family 26 member 4) Mutations in this gene are associated with Pendred syndrome, the most common form of syndromic deafness, an autosomal-recessive disease. It is highly homologous to the SLC26A3 gene; they have similar genomic structures and this gene is located 3' of the SLC26A3 gene. The encoded protein has homology to sulfate transporters. [provided by RefSeq, Jul 2008]

SLC26A4 Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 4
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
Pendred syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
athyreosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
thyroid hypoplasia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SLC26A4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

BP7

For more information check the summary or visit ClinGen Evidence Repository.

BS1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC26A4	NM_000441.2 link	c.1614C>T	p.Asn538Asn	splice_region_variant, synonymous_variant	Exon 14 of 21	ENST00000644269.2	NP_000432.1	O43511-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC26A4	ENST00000644269.2 link	c.1614C>T	p.Asn538Asn	splice_region_variant, synonymous_variant	Exon 14 of 21		NM_000441.2	ENSP00000494017.1	O43511-1
SLC26A4	ENST00000477350.5 link	n.461C>T		splice_region_variant, non_coding_transcript_exon_variant	Exon 4 of 5	4
SLC26A4	ENST00000480841.5 link	n.463C>T		splice_region_variant, non_coding_transcript_exon_variant	Exon 5 of 8	3
SLC26A4	ENST00000644846.1 link	n.324C>T		splice_region_variant, non_coding_transcript_exon_variant	Exon 4 of 10			ENSP00000494344.1	A0A2R8Y4W7

Frequencies

GnomAD3 genomes

AF:

0.000631

AC:

AN:

152088

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00213

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.0000294

Gnomad OTH

AF:

0.000957

GnomAD2 exomes

AF:

0.000215

AC:

AN:

251058

AF XY:

0.000147

show subpopulations

Gnomad AFR exome

AF:

0.00252

Gnomad AMR exome

AF:

0.000319

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000827

AC:

119

AN:

1439706

Hom.:

Cov.:

AF XY:

0.0000669

AC XY:

AN XY:

717756

show subpopulations

African (AFR)

AF:

0.00261

AC:

AN:

32990

American (AMR)

AF:

0.000291

AC:

AN:

44672

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25994

East Asian (EAS)

AF:

0.00

AC:

AN:

39574

South Asian (SAS)

AF:

0.00

AC:

AN:

85824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5716

European-Non Finnish (NFE)

AF:

0.00000733

AC:

AN:

1091912

Other (OTH)

AF:

0.000201

AC:

AN:

59642

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000631

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.000564

AC XY:

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.00212

AC:

AN:

41502

American (AMR)

AF:

0.000262

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10592

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68020

Other (OTH)

AF:

0.000947

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000383

Hom.:

Bravo

AF:

0.000744

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:2Benign:6

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:3

Oct 25, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Sep 04, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 30245029, 20621367) -

Jul 23, 2015

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Pendred syndrome

Uncertain:1Benign:2

Jan 16, 2020

Natera, Inc.

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jul 29, 2019

ClinGen Hearing Loss Variant Curation Expert Panel

Significance:Likely benign

Review Status:reviewed by expert panel

Collection Method:curation

The SLC26A4 p.Asn538Asn variant has been reported in the heterozygous state in one individual with unilateral hearing loss (PMID: 20621367). However, this variant is synonymous and is not predicted by computational prediction analysis, using MaxEntScan, to impact splicing (BP4, BP7). The filtering allele frequency (the lower threshold of the 95% CI of 60/24964) of the p.Asn538Asn variant in SLC26A4 is 0.19168% for African chromosomes in gnomAD, which is a higher frequency than would be expected for an autosomal recessive pathogenic variant based on the thresholds defined by the ClinGen Hearing Loss Expert Panel (BS1_Supporting; http://gnomad.broadinstitute.org). This variant has also been reported in ClinVar (Variation ID 43517). In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the Hearing Loss Expert Panel: BS1_Supporting, BP4, BP7. -

Dec 28, 2017

Counsyl

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

not specified

Benign:1

Mar 01, 2008

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.73

CADD

Benign

0.18

(source)

DANN

Benign

0.45

PhyloP100

-0.97

Mutation Taster

=77/23

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0037

dbscSNV1_RF

Pathogenic

0.72

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over