rs727503448

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_153700.2(STRC):​c.911C>T​(p.Ala304Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000023 ( 0 hom., cov: 10)
Exomes 𝑓: 0.00015 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

STRC
NM_153700.2 missense

Scores

2
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.27

Publications

0 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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.16882226).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STRCNM_153700.2 linkc.911C>T p.Ala304Val missense_variant Exon 4 of 29 ENST00000450892.7 NP_714544.1 Q7RTU9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STRCENST00000450892.7 linkc.911C>T p.Ala304Val missense_variant Exon 4 of 29 5 NM_153700.2 ENSP00000401513.2 Q7RTU9
ENSG00000284772ENST00000643290.1 linkn.*1074C>T non_coding_transcript_exon_variant Exon 6 of 9 ENSP00000495476.1 A0A2R8Y6Q2
ENSG00000284772ENST00000643290.1 linkn.*1074C>T 3_prime_UTR_variant Exon 6 of 9 ENSP00000495476.1 A0A2R8Y6Q2

Frequencies

GnomAD3 genomes
AF:
0.0000231
AC:
2
AN:
86492
Hom.:
0
Cov.:
10
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000309
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000229
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000206
AC:
11
AN:
53470
AF XY:
0.000222
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000893
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.000151
AC:
65
AN:
429932
Hom.:
0
Cov.:
0
AF XY:
0.000132
AC XY:
30
AN XY:
226602
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
11648
American (AMR)
AF:
0.00
AC:
0
AN:
18136
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
13232
East Asian (EAS)
AF:
0.00158
AC:
47
AN:
29808
South Asian (SAS)
AF:
0.0000671
AC:
3
AN:
44712
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
27624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
1858
European-Non Finnish (NFE)
AF:
0.0000581
AC:
15
AN:
258048
Other (OTH)
AF:
0.00
AC:
0
AN:
24866
⚠️ 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: 0.290
Heterozygous variant carriers
0
7
14
21
28
35
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
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000231
AC:
2
AN:
86492
Hom.:
0
Cov.:
10
AF XY:
0.0000509
AC XY:
2
AN XY:
39310
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
18840
American (AMR)
AF:
0.00
AC:
0
AN:
8240
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2404
East Asian (EAS)
AF:
0.000309
AC:
1
AN:
3232
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2110
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6102
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
266
European-Non Finnish (NFE)
AF:
0.0000229
AC:
1
AN:
43612
Other (OTH)
AF:
0.00
AC:
0
AN:
1042
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00000037155), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
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

Genome 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
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jan 03, 2014
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The Ala304Val variant in STRC has not been previously reported in individuals wi th hearing loss. Data from large population studies is insufficient to assess t he frequency of this variant. Computational prediction tools and conservation an alyses do not provide strong support for or against an impact to the protein. In summary, additional information is needed to determine the clinical significanc e of this variant. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Uncertain
-0.010
CADD
Uncertain
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.12
T;.
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.84
T;T
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.17
T;T
MetaSVM
Benign
-0.32
T
PhyloP100
2.3
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-0.67
N;D
REVEL
Uncertain
0.48
Sift
Uncertain
0.0040
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.90
P;.
Vest4
0.67
MutPred
0.19
Loss of helix (P = 0.1299);.;
MVP
0.80
ClinPred
0.090
T
GERP RS
4.0
Varity_R
0.11
gMVP
0.51
Mutation Taster
=91/9
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs727503448; hg19: chr15-43908853; API