chr16-19009280-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024847.4(TMC7):​c.176G>A​(p.Arg59Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R59W) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

TMC7
NM_024847.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.80
Variant links:
Genes affected
TMC7 (HGNC:23000): (transmembrane channel like 7) Predicted to enable mechanosensitive ion channel activity. Predicted to be involved in ion transmembrane transport. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.073854595).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMC7NM_024847.4 linkuse as main transcriptc.176G>A p.Arg59Gln missense_variant 2/16 ENST00000304381.10 NP_079123.3 Q7Z402-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMC7ENST00000304381.10 linkuse as main transcriptc.176G>A p.Arg59Gln missense_variant 2/161 NM_024847.4 ENSP00000304710.5 Q7Z402-1
TMC7ENST00000421369 linkuse as main transcriptc.-155G>A 5_prime_UTR_variant 2/161 ENSP00000397081.3 Q7Z402-2
TMC7ENST00000569532.5 linkuse as main transcriptc.176G>A p.Arg59Gln missense_variant 2/152 ENSP00000455041.1 H3BNW8
TMC7ENST00000568469.5 linkuse as main transcriptn.217G>A non_coding_transcript_exon_variant 2/102

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000278
AC:
7
AN:
251478
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
22
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 11, 2023The c.176G>A (p.R59Q) alteration is located in exon 2 (coding exon 2) of the TMC7 gene. This alteration results from a G to A substitution at nucleotide position 176, causing the arginine (R) at amino acid position 59 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
14
DANN
Uncertain
0.99
DEOGEN2
Benign
0.028
.;T
Eigen
Benign
-0.75
Eigen_PC
Benign
-0.68
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.76
T;T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.074
T;T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
1.4
.;L
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.62
N;N
REVEL
Benign
0.071
Sift
Benign
0.24
T;T
Sift4G
Benign
0.27
T;T
Polyphen
0.0060
.;B
Vest4
0.22
MutPred
0.20
Loss of MoRF binding (P = 0.0355);Loss of MoRF binding (P = 0.0355);
MVP
0.21
MPC
0.30
ClinPred
0.066
T
GERP RS
3.4
Varity_R
0.034
gMVP
0.34

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: rs762260479; hg19: chr16-19020602; API