rs56385906

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_153700.2(STRC):​c.3360T>C​(p.Cys1120Cys) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0191 in 146,078 control chromosomes in the GnomAD database, including 86 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.019 ( 86 hom., cov: 22)
Exomes 𝑓: 0.011 ( 2718 hom. )
Failed GnomAD Quality Control

Consequence

STRC
NM_153700.2 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.191

Publications

2 publications found
Variant links:
Genes affected
STRC (HGNC:16035): (stereocilin) This gene encodes a protein that is associated with the hair bundle of the sensory hair cells in the inner ear. The hair bundle is composed of stiff microvilli called stereocilia and is involved with mechanoreception of sound waves. This gene is part of a tandem duplication on chromosome 15; the second copy is a pseudogene. Mutations in this gene cause autosomal recessive non-syndromic deafness. [provided by RefSeq, Jul 2008]
STRC Gene-Disease associations (from GenCC):
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • autosomal recessive nonsyndromic hearing loss 16
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 15-43610931-A-G is Benign according to our data. Variant chr15-43610931-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 227082.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.191 with no splicing effect.
BS2
High Homozygotes in GnomAd4 at 86 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STRCNM_153700.2 linkc.3360T>C p.Cys1120Cys synonymous_variant Exon 14 of 29 ENST00000450892.7 NP_714544.1 Q7RTU9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STRCENST00000450892.7 linkc.3360T>C p.Cys1120Cys synonymous_variant Exon 14 of 29 5 NM_153700.2 ENSP00000401513.2 Q7RTU9

Frequencies

GnomAD3 genomes
AF:
0.0191
AC:
2787
AN:
145958
Hom.:
86
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.00382
Gnomad AMI
AF:
0.0215
Gnomad AMR
AF:
0.0204
Gnomad ASJ
AF:
0.0183
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0118
Gnomad FIN
AF:
0.0162
Gnomad MID
AF:
0.00325
Gnomad NFE
AF:
0.0310
Gnomad OTH
AF:
0.0201
GnomAD2 exomes
AF:
0.0133
AC:
3179
AN:
238230
AF XY:
0.0132
show subpopulations
Gnomad AFR exome
AF:
0.00126
Gnomad AMR exome
AF:
0.0143
Gnomad ASJ exome
AF:
0.0203
Gnomad EAS exome
AF:
0.000382
Gnomad FIN exome
AF:
0.00754
Gnomad NFE exome
AF:
0.0186
Gnomad OTH exome
AF:
0.0193
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0111
AC:
15335
AN:
1381298
Hom.:
2718
Cov.:
29
AF XY:
0.0112
AC XY:
7682
AN XY:
688280
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.000906
AC:
30
AN:
33116
American (AMR)
AF:
0.00891
AC:
385
AN:
43234
Ashkenazi Jewish (ASJ)
AF:
0.0118
AC:
297
AN:
25094
East Asian (EAS)
AF:
0.000202
AC:
8
AN:
39624
South Asian (SAS)
AF:
0.00681
AC:
568
AN:
83386
European-Finnish (FIN)
AF:
0.0141
AC:
728
AN:
51476
Middle Eastern (MID)
AF:
0.00711
AC:
39
AN:
5488
European-Non Finnish (NFE)
AF:
0.0121
AC:
12572
AN:
1042644
Other (OTH)
AF:
0.0124
AC:
708
AN:
57236
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.268
Heterozygous variant carriers
0
1126
2252
3377
4503
5629
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
152
304
456
608
760
<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
AF:
0.0191
AC:
2784
AN:
146078
Hom.:
86
Cov.:
22
AF XY:
0.0185
AC XY:
1325
AN XY:
71594
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00379
AC:
154
AN:
40668
American (AMR)
AF:
0.0204
AC:
296
AN:
14540
Ashkenazi Jewish (ASJ)
AF:
0.0183
AC:
60
AN:
3286
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5154
South Asian (SAS)
AF:
0.0114
AC:
53
AN:
4658
European-Finnish (FIN)
AF:
0.0162
AC:
166
AN:
10260
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
286
European-Non Finnish (NFE)
AF:
0.0310
AC:
1996
AN:
64330
Other (OTH)
AF:
0.0199
AC:
40
AN:
2012
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.298
Heterozygous variant carriers
0
193
387
580
774
967
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.0387
Hom.:
52

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Oct 05, 2019
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:2
-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jun 26, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Cys1120Cys in Exon 14 of STRC: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue, is not located within the splice consensus sequence, has been identified in 7.6% (10/132) of chromoso mes from an European American (CEU) population in 1000Genomes project (reported in Deafness Variation Database: http://deafnessvariationdatabase.org; dbSNP rs56 385906). -

Autosomal recessive nonsyndromic hearing loss 16 Benign:1
-
Genome-Nilou Lab
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
7.8
DANN
Benign
0.84
PhyloP100
0.19
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs56385906; hg19: chr15-43903129; COSMIC: COSV70833292; COSMIC: COSV70833292; API