rs760040670
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate
The NM_000441.2(SLC26A4):c.556G>T(p.Val186Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000806 in 1,613,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )
Consequence
SLC26A4
NM_000441.2 missense
NM_000441.2 missense
Scores
8
7
3
Clinical Significance
Conservation
PhyloP100: 5.45
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 Likely_pathogenic. Variant got 6 ACMG points.
PM1
?
In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 4 uncertain in NM_000441.2
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.841
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SLC26A4 | NM_000441.2 | c.556G>T | p.Val186Phe | missense_variant | 5/21 | ENST00000644269.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SLC26A4 | ENST00000644269.2 | c.556G>T | p.Val186Phe | missense_variant | 5/21 | NM_000441.2 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000197 AC: 3AN: 152162Hom.: 0 Cov.: 32
GnomAD3 genomes
?
AF:
AC:
3
AN:
152162
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD3 exomes AF: 0.00000795 AC: 2AN: 251458Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135900
GnomAD3 exomes
AF:
AC:
2
AN:
251458
Hom.:
AF XY:
AC XY:
0
AN XY:
135900
Gnomad AFR exome
AF:
Gnomad AMR exome
AF:
Gnomad ASJ exome
AF:
Gnomad EAS exome
AF:
Gnomad SAS exome
AF:
Gnomad FIN exome
AF:
Gnomad NFE exome
AF:
Gnomad OTH exome
AF:
GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461730Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727174
GnomAD4 exome
AF:
AC:
10
AN:
1461730
Hom.:
Cov.:
31
AF XY:
AC XY:
4
AN XY:
727174
Gnomad4 AFR exome
AF:
Gnomad4 AMR exome
AF:
Gnomad4 ASJ exome
AF:
Gnomad4 EAS exome
AF:
Gnomad4 SAS exome
AF:
Gnomad4 FIN exome
AF:
Gnomad4 NFE exome
AF:
Gnomad4 OTH exome
AF:
GnomAD4 genome ? AF: 0.0000197 AC: 3AN: 152162Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74332
GnomAD4 genome
?
AF:
AC:
3
AN:
152162
Hom.:
Cov.:
32
AF XY:
AC XY:
1
AN XY:
74332
Gnomad4 AFR
AF:
Gnomad4 AMR
AF:
Gnomad4 ASJ
AF:
Gnomad4 EAS
AF:
Gnomad4 SAS
AF:
Gnomad4 FIN
AF:
Gnomad4 NFE
AF:
Gnomad4 OTH
AF:
Bravo
AF:
ExAC
?
AF:
AC:
2
EpiCase
AF:
EpiControl
AF:
ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:4Other:1
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
Pendred syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Counsyl | Feb 13, 2018 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Sep 05, 2021 | - - |
Autosomal recessive nonsyndromic hearing loss 4 Uncertain:1Other:1
Affects, no assertion criteria provided | in vitro;literature only | National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center | Aug 20, 2019 | in vitro experiment - |
Uncertain significance, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Sep 05, 2021 | - - |
not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Mar 30, 2018 | - - |
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Sep 15, 2021 | Variant summary: SLC26A4 c.556G>T (p.Val186Phe) results in a non-conservative amino acid change located in the SLC26A/SulP transporter domain of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8e-06 in 251458 control chromosomes. c.556G>T has been reported in the literature a family affected with hearing loss and enlargement of the vestibular aqueduct (Muskett_2016). In this family, two affected individuals carried the variant along with a second mutation, while one unaffected family member also carried the variant of interest along with a second mutation. In experimental studies, the variant failed to traffic to the plasma membrane of COS-7 cells and exhibited minimal or undetectable anion transport activity in Xenopus oocytes as measured by either unidirectional 36Cl- influx or by 36Cl- efflux under conditions of Cl-/HCO3- exchange or Cl-/I- exchange (Muskett_2016). One clinical diagnostic laboratory has submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation and classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as VUS-possibly pathogenic. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Benign
Dann
Uncertain
DEOGEN2
Uncertain
D;D
Eigen
Uncertain
Eigen_PC
Benign
FATHMM_MKL
Pathogenic
D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D
MetaSVM
Uncertain
D
MutationAssessor
Pathogenic
M;M
MutationTaster
Benign
D
PrimateAI
Benign
T
PROVEAN
Pathogenic
D;.
REVEL
Pathogenic
Sift
Uncertain
D;.
Sift4G
Pathogenic
D;.
Polyphen
P;P
Vest4
MutPred
Loss of helix (P = 0.1299);Loss of helix (P = 0.1299);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at