7-107712545-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_000441.2(SLC26A4):​c.2242C>T​(p.Leu748Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000717 in 1,394,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

SLC26A4
NM_000441.2 missense

Scores

6
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.51
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 Uncertain_significance. Variant got 3 ACMG points.

PM1
In a topological_domain Cytoplasmic (size 272) in uniprot entity S26A4_HUMAN there are 26 pathogenic changes around while only 8 benign (76%) in NM_000441.2
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29929316).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC26A4NM_000441.2 linkuse as main transcriptc.2242C>T p.Leu748Phe missense_variant 20/21 ENST00000644269.2 NP_000432.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC26A4ENST00000644269.2 linkuse as main transcriptc.2242C>T p.Leu748Phe missense_variant 20/21 NM_000441.2 ENSP00000494017 P1O43511-1
SLC26A4ENST00000492030.2 linkuse as main transcriptn.428C>T non_coding_transcript_exon_variant 5/65
SLC26A4ENST00000644846.1 linkuse as main transcriptc.*144C>T 3_prime_UTR_variant, NMD_transcript_variant 9/10 ENSP00000494344

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251220
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135790
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.17e-7
AC:
1
AN:
1394410
Hom.:
0
Cov.:
25
AF XY:
0.00000143
AC XY:
1
AN XY:
697734
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:
9.52e-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
0.088
BayesDel_addAF
Uncertain
0.044
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
18
DANN
Uncertain
0.98
DEOGEN2
Benign
0.32
T;T
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.31
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.59
.;T
M_CAP
Benign
0.077
D
MetaRNN
Benign
0.30
T;T
MetaSVM
Uncertain
0.33
D
MutationAssessor
Benign
0.55
N;N
MutationTaster
Benign
0.66
N;N;N;N
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-1.3
N;.
REVEL
Uncertain
0.30
Sift
Benign
0.035
D;.
Sift4G
Uncertain
0.022
D;.
Polyphen
0.72
P;P
Vest4
0.45
MutPred
0.35
Loss of loop (P = 0.0374);Loss of loop (P = 0.0374);
MVP
0.91
MPC
0.037
ClinPred
0.78
D
GERP RS
4.7
Varity_R
0.077
gMVP
0.59

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.

Other links and lift over

dbSNP: rs727504813; hg19: chr7-107352990; API