rs139654750

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001127198.5(TMC6):​c.610C>T​(p.Arg204Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00213 in 1,597,824 control chromosomes in the GnomAD database, including 29 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R204Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0085 ( 12 hom., cov: 33)
Exomes 𝑓: 0.0015 ( 17 hom. )

Consequence

TMC6
NM_001127198.5 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.687

Publications

2 publications found
Variant links:
Genes affected
TMC6 (HGNC:18021): (transmembrane channel like 6) Epidermodysplasia verruciformis (EV) is an autosomal recessive dermatosis characterized by abnormal susceptibility to human papillomaviruses (HPVs) and a high rate of progression to squamous cell carcinoma on sun-exposed skin. EV is caused by mutations in either of two adjacent genes located on chromosome 17q25.3. Both of these genes encode integral membrane proteins that localize to the endoplasmic reticulum and are predicted to form transmembrane channels. This gene encodes a transmembrane channel-like protein with 10 transmembrane domains and 2 leucine zipper motifs. [provided by RefSeq, Jul 2008]
TMC6 Gene-Disease associations (from GenCC):
  • epidermodysplasia verruciformis, susceptibility to, 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
  • epidermodysplasia verruciformis
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.007833868).
BP6
Variant 17-78124912-G-A is Benign according to our data. Variant chr17-78124912-G-A is described in ClinVar as Benign. ClinVar VariationId is 526267.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00846 (1289/152340) while in subpopulation AFR AF = 0.0283 (1176/41580). AF 95% confidence interval is 0.0269. There are 12 homozygotes in GnomAd4. There are 591 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 12 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TMC6NM_001127198.5 linkc.610C>T p.Arg204Trp missense_variant Exon 7 of 20 ENST00000590602.6 NP_001120670.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TMC6ENST00000590602.6 linkc.610C>T p.Arg204Trp missense_variant Exon 7 of 20 2 NM_001127198.5 ENSP00000465261.1

Frequencies

GnomAD3 genomes
AF:
0.00846
AC:
1288
AN:
152222
Hom.:
12
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0283
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00307
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00103
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000632
Gnomad OTH
AF:
0.00860
GnomAD2 exomes
AF:
0.00253
AC:
541
AN:
213698
AF XY:
0.00220
show subpopulations
Gnomad AFR exome
AF:
0.0310
Gnomad AMR exome
AF:
0.00165
Gnomad ASJ exome
AF:
0.000108
Gnomad EAS exome
AF:
0.000420
Gnomad FIN exome
AF:
0.0000634
Gnomad NFE exome
AF:
0.000642
Gnomad OTH exome
AF:
0.000931
GnomAD4 exome
AF:
0.00146
AC:
2108
AN:
1445484
Hom.:
17
Cov.:
33
AF XY:
0.00138
AC XY:
990
AN XY:
718436
show subpopulations
African (AFR)
AF:
0.0298
AC:
992
AN:
33302
American (AMR)
AF:
0.00170
AC:
73
AN:
43020
Ashkenazi Jewish (ASJ)
AF:
0.0000775
AC:
2
AN:
25818
East Asian (EAS)
AF:
0.000153
AC:
6
AN:
39170
South Asian (SAS)
AF:
0.00112
AC:
95
AN:
84816
European-Finnish (FIN)
AF:
0.0000209
AC:
1
AN:
47840
Middle Eastern (MID)
AF:
0.00161
AC:
9
AN:
5606
European-Non Finnish (NFE)
AF:
0.000709
AC:
784
AN:
1106170
Other (OTH)
AF:
0.00244
AC:
146
AN:
59742
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
143
286
428
571
714
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
50
100
150
200
250
<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:
0.00846
AC:
1289
AN:
152340
Hom.:
12
Cov.:
33
AF XY:
0.00793
AC XY:
591
AN XY:
74494
show subpopulations
African (AFR)
AF:
0.0283
AC:
1176
AN:
41580
American (AMR)
AF:
0.00307
AC:
47
AN:
15314
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5182
South Asian (SAS)
AF:
0.000827
AC:
4
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000632
AC:
43
AN:
68018
Other (OTH)
AF:
0.00851
AC:
18
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
68
136
205
273
341
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00165
Hom.:
2
Bravo
AF:
0.00966
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.0186
AC:
81
ESP6500EA
AF:
0.000819
AC:
7
ExAC
AF:
0.00255
AC:
307
Asia WGS
AF:
0.00202
AC:
7
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:1
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Epidermodysplasia verruciformis Benign:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
13
DANN
Benign
0.75
DEOGEN2
Benign
0.13
T;T;T;.;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.089
N
LIST_S2
Benign
0.72
.;.;T;T;T
MetaRNN
Benign
0.0078
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.85
L;L;L;L;.
PhyloP100
0.69
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-2.3
.;N;N;N;.
REVEL
Benign
0.045
Sift
Benign
0.041
.;D;D;T;.
Sift4G
Benign
0.29
T;T;T;T;.
Polyphen
0.0060
B;B;B;B;.
Vest4
0.22
MVP
0.26
MPC
0.17
ClinPred
0.0037
T
GERP RS
-0.88
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.058
gMVP
0.31
Mutation Taster
=98/2
polymorphism

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: rs139654750; hg19: chr17-76120993; COSMIC: COSV99077240; COSMIC: COSV99077240; API