10-53822000-C-T
Variant summary
Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6
The NM_033056.4(PCDH15):c.5726G>A(p.Arg1909His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000129 in 1,613,720 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1909L) 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: Likely_benign. The variant received -3 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000921 AC: 14AN: 152044Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000127 AC: 32AN: 251298 AF XY: 0.0000884 show subpopulations
GnomAD4 exome AF: 0.000133 AC: 194AN: 1461676Hom.: 0 Cov.: 32 AF XY: 0.000120 AC XY: 87AN XY: 727148 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000921 AC: 14AN: 152044Hom.: 0 Cov.: 32 AF XY: 0.0000943 AC XY: 7AN XY: 74260 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Usher syndrome type 1F Uncertain:2
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.
not provided Uncertain:1Benign:1
Reported in published literature (as R1889H using alternate nomenclature) as a single heterozygous variant in a patient with retinitis pigmentosa who had a different suggested genetic etiology for the phenotype (PMID: 25692139); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 25692139)
not specified Uncertain:1
Variant classified as Uncertain Significance - Favor Benign. The p.Arg1909His va riant in PCDH15 has been identified by our laboratory in one individual with hea ring loss who did not have a second PCDH15 variant. This variant has also been i dentified in 14/121438 chromosomes by the Exome Aggregation Consortium (ExAC, ht tp://exac.broadinstitute.org; dbSNP rs145851144). Computational prediction tools and conservation analyses suggest that the p.Arg1909His variant may not impact the protein, though this information is not predictive enough to rule out pathog enicity. In summary, while the clinical significance of the p.Arg1909His variant is uncertain, these data suggest that it is more likely to be benign.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at