chr7-107701068-GCATTTTAAGTAACTTGA-G

Position:

• chr7-107701068-GCATTTTAAGTAACTTGA-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP5_Moderate

The NM_000441.2(SLC26A4):​c.1708-27_1708-11del variant causes a splice polypyrimidine tract, intron change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC26A4 NM_000441.2 splice_polypyrimidine_tract, intron
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 3.63

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 7-107701068-GCATTTTAAGTAACTTGA-G is Pathogenic according to our data. Variant chr7-107701068-GCATTTTAAGTAACTTGA-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 446460.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC26A4	NM_000441.2	c.1708-27_1708-11del		splice_polypyrimidine_tract_variant, intron_variant		ENST00000644269.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC26A4	ENST00000644269.2	c.1708-27_1708-11del		splice_polypyrimidine_tract_variant, intron_variant			NM_000441.2	P1
SLC26A4	ENST00000644846.1	c.419-27_419-11del		splice_polypyrimidine_tract_variant, intron_variant, NMD_transcript_variant
SLC26A4	ENST00000480841.5	n.557-27_557-11del		splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant		3
SLC26A4	ENST00000492030.2	n.91-753_91-737del		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 4 Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Division of Hearing and Balance Research, National Hospital Organization Tokyo Medical Center

Jul 01, 2017

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Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1554360816; hg19: chr7-107341513;