14-30880739-C-T
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BA1
This summary comes from the ClinGen Evidence Repository: The filtering allele frequency of the c.629+5C>T variant in the COCH gene is 0.1% for European chromosomes by gnomAD (162/126474 with 95% CI), which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen Hearing Loss Expert Panel for autosomal dominant hearing loss variants (BA1). LINK:https://erepo.genome.network/evrepo/ui/classification/CA7143097/MONDO:0019497/005
Frequency
Consequence
NM_004086.3 splice_region, intron
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -8 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00113 AC: 172AN: 151774Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000914 AC: 229AN: 250524Hom.: 0 AF XY: 0.00105 AC XY: 142AN XY: 135670
GnomAD4 exome AF: 0.00105 AC: 1529AN: 1455694Hom.: 1 Cov.: 29 AF XY: 0.00110 AC XY: 794AN XY: 724544
GnomAD4 genome AF: 0.00113 AC: 172AN: 151892Hom.: 0 Cov.: 32 AF XY: 0.00121 AC XY: 90AN XY: 74190
ClinVar
Submissions by phenotype
not provided Benign:4
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COCH: BP4, BS1 -
not specified Benign:2
The c.629+5C>T variant in COCH is classified as benign because it has been ident ified in 0.13% (162/126474) of European chromosomes by gnomAD (http://gnomad.bro adinstitute.org). In addition, this variant is located in the 5' splice region, and computational tools do not suggest an impact to splicing. ACMG/AMP Criteria applied: BA1, BP4. -
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COCH-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). -
Nonsyndromic genetic hearing loss Benign:1
The filtering allele frequency of the c.629+5C>T variant in the COCH gene is 0.1% for European chromosomes by gnomAD (162/126474 with 95% CI), which is a high enough frequency to be classified as benign based on thresholds defined by the ClinGen Hearing Loss Expert Panel for autosomal dominant hearing loss variants (BA1). -
Autosomal dominant nonsyndromic hearing loss 9 Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at