rs377480477

Variant summary

Our verdict is Pathogenic. The variant received 15 ACMG points: 16P and 1B. PVS1PP5_Very_StrongBS2_Supporting

The NM_153700.2(STRC):​c.4402C>T​(p.Arg1468*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000837 in 1,613,510 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000082 ( 3 hom. )

Consequence

STRC
NM_153700.2 stop_gained

Scores

2
4

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 2.81

Publications

3 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]
CKMT1B (HGNC:1995): (creatine kinase, mitochondrial 1B) Mitochondrial creatine (MtCK) kinase is responsible for the transfer of high energy phosphate from mitochondria to the cytosolic carrier, creatine. It belongs to the creatine kinase isoenzyme family. It exists as two isoenzymes, sarcomeric MtCK and ubiquitous MtCK, encoded by separate genes. Mitochondrial creatine kinase occurs in two different oligomeric forms: dimers and octamers, in contrast to the exclusively dimeric cytosolic creatine kinase isoenzymes. Many malignant cancers with poor prognosis have shown overexpression of ubiquitous mitochondrial creatine kinase; this may be related to high energy turnover and failure to eliminate cancer cells via apoptosis. Ubiquitous mitochondrial creatine kinase has 80% homology with the coding exons of sarcomeric mitochondrial creatine kinase. Two genes located near each other on chromosome 15 have been identified which encode identical mitochondrial creatine kinase proteins. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 15 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 15-43603385-G-A is Pathogenic according to our data. Variant chr15-43603385-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 179758.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAdExome4 at 3 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153700.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
STRC
NM_153700.2
MANE Select
c.4402C>Tp.Arg1468*
stop_gained
Exon 23 of 29NP_714544.1Q7RTU9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
STRC
ENST00000450892.7
TSL:5 MANE Select
c.4402C>Tp.Arg1468*
stop_gained
Exon 23 of 29ENSP00000401513.2Q7RTU9
STRC
ENST00000440125.5
TSL:1
n.*2194C>T
non_coding_transcript_exon
Exon 22 of 28ENSP00000394866.1E7EPM8
STRC
ENST00000440125.5
TSL:1
n.*2194C>T
3_prime_UTR
Exon 22 of 28ENSP00000394866.1E7EPM8

Frequencies

GnomAD3 genomes
AF:
0.0000987
AC:
15
AN:
151968
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000915
AC:
23
AN:
251312
AF XY:
0.0000883
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.0000930
Gnomad NFE exome
AF:
0.000149
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000821
AC:
120
AN:
1461542
Hom.:
3
Cov.:
32
AF XY:
0.0000784
AC XY:
57
AN XY:
727096
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.0000765
AC:
2
AN:
26132
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39692
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86246
European-Finnish (FIN)
AF:
0.000150
AC:
8
AN:
53244
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000890
AC:
99
AN:
1111888
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
8
16
23
31
39
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.0000987
AC:
15
AN:
151968
Hom.:
0
Cov.:
31
AF XY:
0.0000674
AC XY:
5
AN XY:
74204
show subpopulations
African (AFR)
AF:
0.0000725
AC:
3
AN:
41354
American (AMR)
AF:
0.00
AC:
0
AN:
15248
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000176
AC:
12
AN:
67996
Other (OTH)
AF:
0.00
AC:
0
AN:
2080
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000908
Hom.:
0
Bravo
AF:
0.0000869
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
4
-
-
not provided (4)
2
-
-
Autosomal recessive nonsyndromic hearing loss 16 (2)
1
-
-
Rare genetic deafness (1)
1
-
-
STRC-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.44
D
BayesDel_noAF
Pathogenic
0.58
CADD
Pathogenic
40
DANN
Uncertain
1.0
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.83
D
PhyloP100
2.8
Vest4
0.84
GERP RS
4.2
Mutation Taster
=4/196
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs377480477; hg19: chr15-43895583; COSMIC: COSV100294555; COSMIC: COSV100294555; API