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GeneBe

rs774299359

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The NM_138691.3(TMC1):ā€‹c.830A>Gā€‹(p.Tyr277Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,626 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000055 ( 0 hom. )

Consequence

TMC1
NM_138691.3 missense

Scores

14
3
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.72
Variant links:
Genes affected
TMC1 (HGNC:16513): (transmembrane channel like 1) This gene is considered a member of a gene family predicted to encode transmembrane proteins. The specific function of this gene is unknown; however, it is known to be required for normal function of cochlear hair cells. Mutations in this gene have been associated with progressive postlingual hearing loss and profound prelingual deafness. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a transmembrane_region Helical (size 20) in uniprot entity TMC1_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_138691.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.971

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMC1NM_138691.3 linkuse as main transcriptc.830A>G p.Tyr277Cys missense_variant 13/24 ENST00000297784.10
TMC1XM_017014256.2 linkuse as main transcriptc.833A>G p.Tyr278Cys missense_variant 10/21

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMC1ENST00000297784.10 linkuse as main transcriptc.830A>G p.Tyr277Cys missense_variant 13/241 NM_138691.3 P2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151958
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251380
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135866
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461668
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727138
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000720
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151958
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74224
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jul 09, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.43
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.87
D;D;.;D;.
Eigen
Pathogenic
0.94
Eigen_PC
Pathogenic
0.88
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.97
D;D;D;D;D
MetaSVM
Pathogenic
0.88
D
MutationAssessor
Pathogenic
3.8
H;H;.;H;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Pathogenic
-8.9
D;.;.;D;.
REVEL
Pathogenic
0.92
Sift
Pathogenic
0.0
D;.;.;D;.
Sift4G
Pathogenic
0.0
D;.;.;D;.
Polyphen
1.0
D;D;.;D;.
Vest4
1.0
MutPred
0.85
Loss of stability (P = 0.0827);Loss of stability (P = 0.0827);.;Loss of stability (P = 0.0827);.;
MVP
0.97
MPC
0.78
ClinPred
1.0
D
GERP RS
5.6
Varity_R
0.84
gMVP
0.98

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs774299359; hg19: chr9-75387417; COSMIC: COSV52780907; API