rs74943260

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_173477.5(USH1G):​c.*1821C>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000801 in 152,272 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00080 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

USH1G
NM_173477.5 3_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.40

Publications

0 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 Gene-Disease associations (from GenCC):
  • Usher syndrome type 1
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Usher syndrome type 1G
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 17-74916252-G-C is Benign according to our data. Variant chr17-74916252-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 889341.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000801 (122/152272) while in subpopulation EAS AF = 0.0174 (90/5158). AF 95% confidence interval is 0.0145. There are 0 homozygotes in GnomAd4. There are 65 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
USH1GNM_173477.5 linkc.*1821C>G 3_prime_UTR_variant Exon 3 of 3 ENST00000614341.5 NP_775748.2
USH1GNM_001282489.3 linkc.*1821C>G 3_prime_UTR_variant Exon 3 of 3 NP_001269418.1 Q495M9B4DL95
USH1GXM_011524296.2 linkc.*1821C>G 3_prime_UTR_variant Exon 3 of 3 XP_011522598.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
USH1GENST00000614341.5 linkc.*1821C>G 3_prime_UTR_variant Exon 3 of 3 1 NM_173477.5 ENSP00000480279.1 Q495M9

Frequencies

GnomAD3 genomes
AF:
0.000808
AC:
123
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000579
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0176
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000479
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
172
Hom.:
0
Cov.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134
African (AFR)
AF:
0.00
AC:
0
AN:
2
American (AMR)
AF:
0.00
AC:
0
AN:
2
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
4
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4
South Asian (SAS)
AF:
0.00
AC:
0
AN:
6
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
16
Middle Eastern (MID)
AC:
0
AN:
0
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
110
Other (OTH)
AF:
0.00
AC:
0
AN:
28
GnomAD4 genome
AF:
0.000801
AC:
122
AN:
152272
Hom.:
0
Cov.:
32
AF XY:
0.000873
AC XY:
65
AN XY:
74446
show subpopulations
African (AFR)
AF:
0.000577
AC:
24
AN:
41572
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.0174
AC:
90
AN:
5158
South Asian (SAS)
AF:
0.00145
AC:
7
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68008
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
7
15
22
30
37
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000347
Hom.:
0
Bravo
AF:
0.000816
Asia WGS
AF:
0.00866
AC:
30
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Usher syndrome type 1G Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
6.7
DANN
Benign
0.78
PhyloP100
1.4
Mutation Taster
=100/0
polymorphism

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: rs74943260; hg19: chr17-72912344; API