chr7-103374180-C-A

Position:

• chr7-103374180-C-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The ENST00000339444.10(SLC26A5):​c.2041+2628G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000765 in 1,349,672 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0038 (3 hom., cov: 32)
  • Exomes 𝑓: 0.00038 (0 hom.)
• Consequence: SLC26A5 ENST00000339444.10 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.367

Genes affected

SLC26A5 (HGNC:9359): (solute carrier family 26 member 5) This gene encodes a member of the SLC26A/SulP transporter family. The protein functions as a molecular motor in motile outer hair cells (OHCs) of the cochlea, inducing changes in cell length that act to amplify sound levels. The transmembrane protein is an incomplete anion transporter, and does not allow anions to cross the cell membrane but instead undergoes a conformational change in response to changes in intracellular Cl- levels that results in a change in cell length. The protein functions at microsecond rates, which is several orders of magnitude faster than conventional molecular motor proteins. Mutations in this gene are potential candidates for causing neurosensory deafness. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Nov 2009]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 7-103374180-C-A is Benign according to our data. Variant chr7-103374180-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 1190411.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0038 (578/152220) while in subpopulation AFR AF= 0.0132 (547/41516). AF 95% confidence interval is 0.0123. There are 3 homozygotes in gnomad4. There are 271 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC26A5	NM_198999.3			downstream_gene_variant		ENST00000306312.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC26A5	ENST00000306312.8			downstream_gene_variant		1	NM_198999.3	P4

Frequencies

GnomAD3 genomes AF: 0.00380 AC: 578 AN: 152102 Hom.: 3 Cov.: 32

Gnomad AFR AF: 0.0132

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00137

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.00143

GnomAD4 exome AF: 0.000379 AC: 454 AN: 1197452 Hom.: 0 Cov.: 29 AF XY: 0.000356 AC XY: 205 AN XY: 575118

Gnomad4 AFR exome AF: 0.0138

Gnomad4 AMR exome AF: 0.000823

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: 0.0000274

Gnomad4 OTH exome AF: 0.000855

GnomAD4 genome AF: 0.00380 AC: 578 AN: 152220 Hom.: 3 Cov.: 32 AF XY: 0.00364 AC XY: 271 AN XY: 74416

Gnomad4 AFR AF: 0.0132

Gnomad4 AMR AF: 0.00137

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000882

Gnomad4 OTH AF: 0.00142

Alfa AF: 0.00312 Hom.: 0

Bravo AF: 0.00439

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 13, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	0.26
DANN	Benign	0.72

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs187458251; hg19: chr7-103014627;