rs1554952757

Variant names:

• chr11-17494350-TC-T
• rs1554952757
• NM_153676.4:c.2681delG

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PVS1_Moderate PM2

The NM_153676.4(USH1C):​c.2681delG​(p.Gly894GlufsTer10) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 34)
• Consequence: USH1C NM_153676.4 frameshift
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 3.98
• Publications: 0 publications found

Genes affected

USH1C (HGNC:12597): (USH1 protein network component harmonin) This gene encodes a scaffold protein that functions in the assembly of Usher protein complexes. The protein contains PDZ domains, a coiled-coil region with a bipartite nuclear localization signal and a PEST degradation sequence. Defects in this gene are the cause of Usher syndrome type 1C and non-syndromic sensorineural deafness autosomal recessive type 18. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

USH1C Gene-Disease associations (from GenCC):

• Usher syndrome type 1C

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Laboratory for Molecular Medicine, G2P
• Usher syndrome type 1

  Inheritance: Unknown, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• autosomal recessive nonsyndromic hearing loss 18A

  Inheritance: AR, Unknown Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.00704 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153676.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USH1C	NM_153676.4	MANE Select	c.2681delG	p.Gly894GlufsTer10	frameshift	Exon 27 of 27	NP_710142.1	Q9Y6N9-5
	USH1C	NM_005709.4	MANE Plus Clinical	c.*13delG		3_prime_UTR	Exon 21 of 21	NP_005700.2	A0A0S2Z4U9
	USH1C	NM_001440685.1		c.1616delG	p.Gly539GlufsTer10	frameshift	Exon 20 of 20	NP_001427614.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USH1C	ENST00000005226.12	TSL:5 MANE Select	c.2681delG	p.Gly894GlufsTer10	frameshift	Exon 27 of 27	ENSP00000005226.7	Q9Y6N9-5
	USH1C	ENST00000318024.9	TSL:1 MANE Plus Clinical	c.*13delG		3_prime_UTR	Exon 21 of 21	ENSP00000317018.4	Q9Y6N9-1
	USH1C	ENST00000527020.5	TSL:1	c.*13delG		3_prime_UTR	Exon 20 of 20	ENSP00000436934.1	Q9Y6N9-4

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 34

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	1	-	Usher syndrome type 1C;C1865870:Autosomal recessive nonsyndromic hearing loss 18A (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		4.0

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs1554952757; hg19: chr11-17515897;