rs1458101309

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]
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]

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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
USH1GNM_173477.5 linkc.49_51delCTC p.Leu17del conservative_inframe_deletion Exon 1 of 3 ENST00000614341.5 NP_775748.2
USH1GNM_001282489.3 linkc.-208_-206delCTC 5_prime_UTR_variant Exon 1 of 3 NP_001269418.1 Q495M9B4DL95
USH1GXM_011524296.2 linkc.-595_-593delCTC upstream_gene_variant XP_011522598.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
USH1GENST00000614341.5 linkc.49_51delCTC p.Leu17del conservative_inframe_deletion Exon 1 of 3 1 NM_173477.5 ENSP00000480279.1 Q495M9
OTOP2ENST00000580223.2 linkc.-239_-237delGAG 5_prime_UTR_variant Exon 1 of 5 1 ENSP00000463837.2 A0A6E1ZAN8
USH1GENST00000579243.1 linkn.49_51delCTC non_coding_transcript_exon_variant Exon 1 of 3 2 ENSP00000462568.1 J3KSN5

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000487
AC:
1
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:
1
AN:
1429178
Hom.:
0
AF XY:
0.00000141
AC XY:
1
AN XY:
707070
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32902
American (AMR)
AF:
0.00
AC:
0
AN:
40882
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25594
East Asian (EAS)
AF:
0.0000261
AC:
1
AN:
38252
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81972
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50782
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5354
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1094504
Other (OTH)
AF:
0.00
AC:
0
AN:
58936
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
31

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

Other links and lift over

dbSNP: rs1458101309; hg19: chr17-72919117; API