rs2135720

Positions:

• chr10-53995731-C-G
• chr10-53995731-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_033056.4(PCDH15):​c.2786G>C​(p.Arg929Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R929Q) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PCDH15 NM_033056.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.850

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1746327).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PCDH15	NM_033056.4	c.2786G>C	p.Arg929Pro	missense_variant	21/33	ENST00000320301.11
PCDH15	NM_001384140.1	c.2786G>C	p.Arg929Pro	missense_variant	21/38	ENST00000644397.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PCDH15	ENST00000320301.11	c.2786G>C	p.Arg929Pro	missense_variant	21/33	1	NM_033056.4
PCDH15	ENST00000644397.2	c.2786G>C	p.Arg929Pro	missense_variant	21/38		NM_001384140.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.28
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	20
DANN	Benign	0.86
DEOGEN2	Benign	0.0090	T;.;.;.;.;T;T;T;T;.;.;T;.;T;.;.;.;.;.;.;T;.
Eigen	Benign	-0.93
Eigen_PC	Benign	-0.77
FATHMM_MKL	Benign	0.12	N
LIST_S2	Uncertain	0.87	D;D;D;D;D;D;D;D;D;D;D;D;T;T;T;T;T;T;T;T;T;D
M_CAP	Benign	0.021	T
MetaRNN	Benign	0.17	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-1.5	.;.;.;.;N;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;N;N
MutationTaster	Benign	0.99	P;P;P;P;P;P;P;P;P;P;P;P;P;P;P;P
PrimateAI	Benign	0.38	T
PROVEAN	Benign	-0.69	.;.;.;.;.;.;.;N;.;N;N;.;N;.;.;N;N;N;.;N;N;N
REVEL	Benign	0.10
Sift	Benign	0.25	.;.;.;.;.;.;.;T;.;T;T;.;T;.;.;T;T;T;.;T;T;T
Sift4G	Benign	0.18	T;.;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen		0.0, 0.0030, 0.0040, 0.015, 0.0010	.;.;.;.;.;.;.;.;.;.;B;.;B;.;.;B;B;B;.;B;B;B
Vest4		0.23
MutPred		0.45		Gain of catalytic residue at M934 (P = 0.023);Gain of catalytic residue at M934 (P = 0.023);.;Gain of catalytic residue at M934 (P = 0.023);Gain of catalytic residue at M934 (P = 0.023);.;Gain of catalytic residue at M934 (P = 0.023);.;.;.;Gain of catalytic residue at M934 (P = 0.023);.;.;.;.;Gain of catalytic residue at M934 (P = 0.023);Gain of catalytic residue at M934 (P = 0.023);.;.;.;Gain of catalytic residue at M934 (P = 0.023);Gain of catalytic residue at M934 (P = 0.023);
MVP		0.40
MPC		0.035
ClinPred		0.070	T
GERP RS		3.0
Varity_R		0.33
gMVP		0.58

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs2135720; hg19: chr10-55755491;