Variant 7-107661728-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PS1PM1PM2PM5PP5

The NM_000441.2(SLC26A4):c.87G>T(p.Glu29Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000214 in 1,404,860 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E29G) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SLC26A4
NM_000441.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 1.78

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 links:

SLC26A4-AS1 (HGNC:22385): (SLC26A4 antisense RNA 1)

SLC26A4-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 ACMG points.

PS1

Transcript NM_000441.2 (SLC26A4) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar as 1065202

PM1

In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 3 uncertain in NM_000441.2

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr7-107661726-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 4839.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

PP5

Variant 7-107661728-G-T is Pathogenic according to our data. Variant chr7-107661728-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 554998.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Likely_pathogenic=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC26A4	NM_000441.2 linkuse as main transcript	c.87G>T	p.Glu29Asp	missense_variant	2/21	ENST00000644269.2
SLC26A4-AS1	NR_028137.1 linkuse as main transcript	n.71C>A		non_coding_transcript_exon_variant	1/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC26A4	ENST00000644269.2 linkuse as main transcript	c.87G>T	p.Glu29Asp	missense_variant	2/21		NM_000441.2	P1	O43511-1
SLC26A4-AS1	ENST00000668981.1 linkuse as main transcript	n.131C>A		non_coding_transcript_exon_variant	1/2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000214

AC:

AN:

1404860

Hom.:

Cov.:

AF XY:

0.00000144

AC XY:

AN XY:

694440

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:

0.0000250

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.20e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Nov 09, 2022

Not observed in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 22285650) -

Pendred syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

Nov 10, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Uncertain

0.12

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.33

T;T;T

Eigen

Benign

-0.45

Eigen_PC

Benign

-0.35

FATHMM_MKL

Benign

0.69

M_CAP

Pathogenic

0.45

MetaRNN

Uncertain

0.64

D;D;D

MetaSVM

Uncertain

-0.032

MutationAssessor

Benign

2.0

M;M;.

MutationTaster

Benign

0.67

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.9

N;.;N

REVEL

Uncertain

0.60

Sift

Benign

0.10

T;.;T

Sift4G

Benign

0.068

T;.;T

Polyphen

0.026

B;B;.

Vest4

0.76

MutPred

0.75

Loss of helix (P = 0.079);Loss of helix (P = 0.079);Loss of helix (P = 0.079);

MVP

0.91

MPC

0.012

ClinPred

0.55

GERP RS

2.3

Varity_R

0.16

gMVP

0.69

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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