chr10-53827426-G-C
Variant summary
Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_033056.4(PCDH15):c.4334C>G(p.Ala1445Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000544 in 1,613,180 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1445T) has been classified as Uncertain significance.
Frequency
Consequence
NM_033056.4 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal recessive nonsyndromic hearing loss 23Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), PanelApp Australia
- Usher syndrome type 1Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
- Usher syndrome type 1FInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), 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 -20 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PCDH15 | ENST00000320301.11 | c.4334C>G | p.Ala1445Gly | missense_variant | Exon 32 of 33 | 1 | NM_033056.4 | ENSP00000322604.6 | ||
| PCDH15 | ENST00000644397.2 | c.4334C>G | p.Ala1445Gly | missense_variant | Exon 32 of 38 | NM_001384140.1 | ENSP00000495195.1 |
Frequencies
GnomAD3 genomes AF: 0.000644 AC: 98AN: 152220Hom.: 2 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00267 AC: 663AN: 248074 AF XY: 0.00194 show subpopulations
GnomAD4 exome AF: 0.000534 AC: 780AN: 1460842Hom.: 11 Cov.: 31 AF XY: 0.000447 AC XY: 325AN XY: 726582 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000643 AC: 98AN: 152338Hom.: 2 Cov.: 32 AF XY: 0.000483 AC XY: 36AN XY: 74496 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:4
not specified Benign:1
p.Ala1445Gly in exon 32 of PCDH15: This variant is not expected to have clinical significance because it has been identified in 2.3% (261/11556) of Latino chrom osomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org ; dbSNP rs146745502).
PCDH15-related disorder Benign:1
This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).
Usher syndrome type 1F Benign:1
Usher syndrome type 1 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