rs56165709
Variant summary
Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2
The NM_153676.4(USH1C):c.2611G>A(p.Ala871Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00529 in 1,614,210 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_153676.4 missense
Scores
Clinical Significance
Conservation
Publications
- Usher syndrome type 1Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- Usher syndrome type 1CInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, PanelApp Australia
- autosomal recessive nonsyndromic hearing loss 18AInheritance: AR, Unknown Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
- hearing loss, autosomal recessiveInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- nonsyndromic genetic hearing lossInheritance: AR Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -13 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00330 AC: 502AN: 152220Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.00313 AC: 788AN: 251482 AF XY: 0.00308 show subpopulations
GnomAD4 exome AF: 0.00550 AC: 8038AN: 1461872Hom.: 21 Cov.: 31 AF XY: 0.00535 AC XY: 3892AN XY: 727236 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00329 AC: 501AN: 152338Hom.: 0 Cov.: 33 AF XY: 0.00303 AC XY: 226AN XY: 74502 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:3
Ala871Thr in Exon 26 of USH1C: This variant is not expected to have clinical sig nificance because it has been identified in 0.5% (35/7020) of European American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http: //evs.gs.washington.edu/EVS; dbSNP rs56165709). In addition, this variant has be en reported in one individual with Usher type 1 who carried two other truncating USH1C variants assumed to explain disease, one in cis with Ala871Thr (Zwaenepoe le 2001).
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
not provided Benign:2
USH1C: BP4, BS2
Autosomal recessive nonsyndromic hearing loss 18A Uncertain:1
This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868].
Usher syndrome type 1C Uncertain:1
NM_005709.3(USH1C):c.1646+1145G>A is an intronic variant classified as a variant of uncertain significance in the context of USH1C-related disorders. c.1646+1145G>A has been observed in cases with relevant disease (PMID: 24416283, 25333064). Functional assessments of this variant are not available in the literature. c.1646+1145G>A has been observed in population frequency databases (gnomAD: NFE 0.53%). In summary, there is insufficient evidence to classify NM_005709.3(USH1C):c.1646+1145G>A as pathogenic or benign. Please note: this variant was assessed in the context of healthy population screening.
USH1C-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at