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GeneBe

9-72792318-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PM5PP5

The NM_138691.3(TMC1):​c.1532C>T​(p.Pro511Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,854 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P511H) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TMC1
NM_138691.3 missense

Scores

3
11
4

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 4.93
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 7 ACMG points.

PM1
In a topological_domain Cytoplasmic (size 172) in uniprot entity TMC1_HUMAN there are 14 pathogenic changes around while only 0 benign (100%) in NM_138691.3
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr9-72792318-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 165436.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Likely_pathogenic=1}.
PP5
Variant 9-72792318-C-T is Pathogenic according to our data. Variant chr9-72792318-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 402278.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMC1NM_138691.3 linkuse as main transcriptc.1532C>T p.Pro511Leu missense_variant 17/24 ENST00000297784.10
TMC1XM_017014256.2 linkuse as main transcriptc.1535C>T p.Pro512Leu missense_variant 14/21

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMC1ENST00000297784.10 linkuse as main transcriptc.1532C>T p.Pro511Leu missense_variant 17/241 NM_138691.3 P2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461854
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
2
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 7 Pathogenic:1
Pathogenic, no assertion criteria providedresearchHereditary Research Laboratory, Bethlehem UniversityJun 04, 2016FA3 moderate HL at 6y; FA4 profound at 18m -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.57
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.040
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D;D;.;D;.
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Benign
0.081
D
MetaRNN
Uncertain
0.68
D;D;D;D;D
MetaSVM
Benign
-0.56
T
MutationAssessor
Uncertain
2.6
M;M;.;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-4.8
D;.;.;D;.
REVEL
Uncertain
0.39
Sift
Benign
0.070
T;.;.;T;.
Sift4G
Uncertain
0.049
D;.;.;D;.
Polyphen
0.80
P;P;.;P;.
Vest4
0.60
MutPred
0.45
Gain of helix (P = 0.0349);Gain of helix (P = 0.0349);.;Gain of helix (P = 0.0349);.;
MVP
0.82
MPC
0.37
ClinPred
0.98
D
GERP RS
5.8
Varity_R
0.27
gMVP
0.71

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

LitVar

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

Other links and lift over

dbSNP: rs727503483; hg19: chr9-75407234; API