7-107690151-ATCT-A

Variant summary

Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PM1PM2PM4_SupportingPP5_Very_Strong

The NM_000441.2(SLC26A4):​c.1181_1183del​(p.Phe394del) variant causes a inframe deletion change. The variant allele was found at a frequency of 0.000000685 in 1,460,210 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (β˜…β˜…).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLC26A4
NM_000441.2 inframe_deletion

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 7.19
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 13 ACMG points.

PM1
In a transmembrane_region Helical (size 20) in uniprot entity S26A4_HUMAN there are 6 pathogenic changes around while only 0 benign (100%) in NM_000441.2
PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_000441.2. Strenght limited to Supporting due to length of the change: 1aa.
PP5
Variant 7-107690151-ATCT-A is Pathogenic according to our data. Variant chr7-107690151-ATCT-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 370463.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC26A4NM_000441.2 linkuse as main transcriptc.1181_1183del p.Phe394del inframe_deletion 10/21 ENST00000644269.2 NP_000432.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC26A4ENST00000644269.2 linkuse as main transcriptc.1181_1183del p.Phe394del inframe_deletion 10/21 NM_000441.2 ENSP00000494017 P1O43511-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251072
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135666
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460210
Hom.:
0
AF XY:
0.00000138
AC XY:
1
AN XY:
726594
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Pendred syndrome Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingCounsylFeb 17, 2016- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 13, 2023For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 370463). This variant is also known as S394del or c.1178delTCT. This variant has been observed in individual(s) with Pendred syndrome (PMID: 11502831, 25372295, 30086623). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. This variant is present in population databases (rs777008062, gnomAD 0.003%). This variant, c.1181_1183del, results in the deletion of 1 amino acid(s) of the SLC26A4 protein (p.Phe394del), but otherwise preserves the integrity of the reading frame. -
Autosomal recessive nonsyndromic hearing loss 4 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsFeb 02, 2024- -

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.

Other links and lift over

dbSNP: rs777008062; hg19: chr7-107330596; API