chr17-74923022-TGAG-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PM4_Supporting

The NM_173477.5(USH1G):c.49_51delCTC(p.Leu17del) variant causes a conservative inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000007 in 1,429,178 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

USH1G
NM_173477.5 conservative_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.51

Publications

1 publications found

Variant links:

Genes affected

USH1G (HGNC:16356): (USH1 protein network component sans) This gene encodes a protein that contains three ankyrin domains, a class I PDZ-binding motif and a sterile alpha motif. The encoded protein interacts with harmonin, which is associated with Usher syndrome type 1C. This protein plays a role in the development and maintenance of the auditory and visual systems and functions in the cohesion of hair bundles formed by inner ear sensory cells. Mutations in this gene are associated with Usher syndrome type 1G (USH1G). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

USH1G links:

OTOP2 (HGNC:19657): (otopetrin 2) Predicted to enable proton channel activity. Predicted to be involved in proton transmembrane transport. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

OTOP2 links:

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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;

PM4

Nonframeshift variant in NON repetitive region in NM_173477.5. Strenght limited to Supporting due to length of the change: 1aa.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USH1G	NM_173477.5 link	c.49_51delCTC	p.Leu17del	conservative_inframe_deletion	Exon 1 of 3	ENST00000614341.5	NP_775748.2
USH1G	NM_001282489.3 link	c.-208_-206delCTC		5_prime_UTR_variant	Exon 1 of 3		NP_001269418.1	Q495M9B4DL95
USH1G	XM_011524296.2 link	c.-595_-593delCTC		upstream_gene_variant			XP_011522598.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
USH1G	ENST00000614341.5 link	c.49_51delCTC	p.Leu17del	conservative_inframe_deletion	Exon 1 of 3	1	NM_173477.5	ENSP00000480279.1	Q495M9
OTOP2	ENST00000580223.2 link	c.-239_-237delGAG		5_prime_UTR_variant	Exon 1 of 5	1		ENSP00000463837.2	A0A6E1ZAN8
USH1G	ENST00000579243.1 link	n.49_51delCTC		non_coding_transcript_exon_variant	Exon 1 of 3	2		ENSP00000462568.1	J3KSN5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000487

AC:

AN:

205458

AF XY:

0.00000905

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000639

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.00e-7

AC:

AN:

1429178

Hom.:

AF XY:

0.00000141

AC XY:

AN XY:

707070

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32902

American (AMR)

AF:

0.00

AC:

AN:

40882

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25594

East Asian (EAS)

AF:

0.0000261

AC:

AN:

38252

South Asian (SAS)

AF:

0.00

AC:

AN:

81972

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50782

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5354

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1094504

Other (OTH)

AF:

0.00

AC:

AN:

58936

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Apr 01, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant, c.49_51del, results in the deletion of 1 amino acid(s) of the USH1G protein (p.Leu17del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (no rsID available, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with USH1G-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

7.5

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

Publications

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chr17-74923022-TGAG-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over