rs1275029034
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Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5
The NM_000441.2(SLC26A4):c.2320-2A>G variant causes a splice acceptor change. The variant allele was found at a frequency of 0.00000496 in 1,612,974 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )
Consequence
SLC26A4
NM_000441.2 splice_acceptor
NM_000441.2 splice_acceptor
Scores
3
2
2
Splicing: ADA: 1.000
2
Clinical Significance
Conservation
PhyloP100: 5.05
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 Pathogenic. Variant got 11 ACMG points.
PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 7-107715421-A-G is Pathogenic according to our data. Variant chr7-107715421-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 553509.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=1}.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SLC26A4 | NM_000441.2 | c.2320-2A>G | splice_acceptor_variant | ENST00000644269.2 | NP_000432.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SLC26A4 | ENST00000644269.2 | c.2320-2A>G | splice_acceptor_variant | NM_000441.2 | ENSP00000494017 | P1 | ||||
SLC26A4 | ENST00000644846.1 | c.*222-2A>G | splice_acceptor_variant, NMD_transcript_variant | ENSP00000494344 | ||||||
SLC26A4 | ENST00000492030.2 | n.506-2A>G | splice_acceptor_variant, non_coding_transcript_variant | 5 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152172Hom.: 0 Cov.: 32
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GnomAD4 exome AF: 0.00000342 AC: 5AN: 1460802Hom.: 0 Cov.: 29 AF XY: 0.00000413 AC XY: 3AN XY: 726762
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152172Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74344
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
Autosomal recessive nonsyndromic hearing loss 4 Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Mar 25, 2024 | - - |
Pendred syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Counsyl | Aug 22, 2017 | - - |
Computational scores
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Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Benign
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
MutationTaster
Benign
D;D;D;D
GERP RS
Splicing
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Calibrated prediction
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dbscSNV1_ADA
Pathogenic
dbscSNV1_RF
Pathogenic
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_AL_spliceai
Position offset: 2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at