10-54023048-CACA-CACAACA

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PM4_Supporting

The NM_033056.4(PCDH15):c.2369_2370insTGT(p.Val789dup) variant causes a inframe insertion change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. V790V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PCDH15 NM_033056.4 inframe_insertion
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.28

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 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_033056.4. Strenght limited to Supporting due to length of the change: 1aa.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PCDH15	NM_001384140.1	c.2369_2370insTGT	p.Val789dup	inframe_insertion	19/38	ENST00000644397.2
PCDH15	NM_033056.4	c.2369_2370insTGT	p.Val789dup	inframe_insertion	19/33	ENST00000320301.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PCDH15	ENST00000320301.11	c.2369_2370insTGT	p.Val789dup	inframe_insertion	19/33	1	NM_033056.4
PCDH15	ENST00000644397.2	c.2369_2370insTGT	p.Val789dup	inframe_insertion	19/38		NM_001384140.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs483352837; hg19: chr10-55782808;