10-53827547-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_033056.4(PCDH15):​c.4213C>G​(p.Arg1405Gly) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1405H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

PCDH15
NM_033056.4 missense, splice_region

Scores

8
7
3
Splicing: ADA: 0.9884
1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.73

Publications

5 publications found
Variant links:
Genes affected
PCDH15 (HGNC:14674): (protocadherin related 15) This gene is a member of the cadherin superfamily. Family members encode integral membrane proteins that mediate calcium-dependent cell-cell adhesion. It plays an essential role in maintenance of normal retinal and cochlear function. Mutations in this gene result in hearing loss and Usher Syndrome Type IF (USH1F). Extensive alternative splicing resulting in multiple isoforms has been observed in the mouse ortholog. Similar alternatively spliced transcripts are inferred to occur in human, and additional variants are likely to occur. [provided by RefSeq, Dec 2008]
PCDH15 Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 23
    Inheritance: AR Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • Usher syndrome type 1
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Usher syndrome type 1F
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: LIMITED Submitted by: ClinGen

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, max_spliceai. No scorers claiming Uncertain. Scorers claiming Benign: dbscSNV1_RF.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033056.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PCDH15
NM_033056.4
MANE Plus Clinical
c.4213C>Gp.Arg1405Gly
missense splice_region
Exon 32 of 33NP_149045.3
PCDH15
NM_001384140.1
MANE Select
c.4213C>Gp.Arg1405Gly
missense splice_region
Exon 32 of 38NP_001371069.1
PCDH15
NM_001142763.2
c.4228C>Gp.Arg1410Gly
missense splice_region
Exon 33 of 35NP_001136235.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PCDH15
ENST00000320301.11
TSL:1 MANE Plus Clinical
c.4213C>Gp.Arg1405Gly
missense splice_region
Exon 32 of 33ENSP00000322604.6
PCDH15
ENST00000644397.2
MANE Select
c.4213C>Gp.Arg1405Gly
missense splice_region
Exon 32 of 38ENSP00000495195.1
PCDH15
ENST00000395445.6
TSL:1
c.4234C>Gp.Arg1412Gly
missense splice_region
Exon 33 of 35ENSP00000378832.2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000402
AC:
1
AN:
249056
AF XY:
0.00000742
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Aug 03, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Arg1405Gly variant in PCDH15 has not been previously reported in individua ls with hearing loss or Usher syndrome, but has been identified in 1/17246 East Asian chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broa dinstitute.org/; dbSNP rs148046721). Although this variant has been seen in the general population, its frequency is not high enough to rule out a pathogenic ro le. Computational prediction tools and conservation analyses suggest that this v ariant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, the clinical significance of the p.Arg14 05Gly variant is uncertain.

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
34
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.17
T
Eigen
Uncertain
0.61
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.85
D
MetaSVM
Benign
-0.34
T
MutationAssessor
Benign
1.8
L
PhyloP100
5.7
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-3.6
D
REVEL
Uncertain
0.54
Sift
Uncertain
0.0060
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.88
MutPred
0.74
Loss of MoRF binding (P = 0.0379)
MVP
0.83
MPC
0.24
ClinPred
0.92
D
GERP RS
5.4
Varity_R
0.19
gMVP
0.68
Mutation Taster
=17/83
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Benign
0.69
SpliceAI score (max)
0.57
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.57
Position offset: -1

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

Publications

Other links and lift over

dbSNP: rs148046721; hg19: chr10-55587307; API