chr7-107690220-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PM5PP3_Moderate

The NM_000441.2(SLC26A4):ā€‹c.1246A>Gā€‹(p.Thr416Ala) variant causes a missense change. The variant allele was found at a frequency of 0.000000689 in 1,450,682 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T416P) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.9e-7 ( 0 hom. )

Consequence

SLC26A4
NM_000441.2 missense

Scores

5
11
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.32
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a hotspot region, there are 9 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 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 chr7-107690220-A-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 4818.We mark this variant Likely_pathogenic, oryginal submissions are: {not_provided=1, Pathogenic=13, Uncertain_significance=1}.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.87

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC26A4NM_000441.2 linkuse as main transcriptc.1246A>G p.Thr416Ala missense_variant 10/21 ENST00000644269.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC26A4ENST00000644269.2 linkuse as main transcriptc.1246A>G p.Thr416Ala missense_variant 10/21 NM_000441.2 P1O43511-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250802
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135518
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.89e-7
AC:
1
AN:
1450682
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
722508
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:
9.08e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Pathogenic
0.38
D
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D;D
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.96
.;D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.87
D;D
MetaSVM
Uncertain
0.44
D
MutationAssessor
Benign
1.4
L;L
MutationTaster
Benign
0.99
D
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-4.6
D;.
REVEL
Pathogenic
0.87
Sift
Uncertain
0.0020
D;.
Sift4G
Uncertain
0.0030
D;.
Polyphen
0.99
D;D
Vest4
0.81
MutPred
0.66
Loss of solvent accessibility (P = 0.0174);Loss of solvent accessibility (P = 0.0174);
MVP
0.95
MPC
0.070
ClinPred
0.99
D
GERP RS
5.1
Varity_R
0.67
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs28939086; hg19: chr7-107330665; API