chr17-78124577-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001127198.5(TMC6):​c.838G>A​(p.Ala280Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000622 in 1,612,106 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0030 ( 7 hom., cov: 33)
Exomes 𝑓: 0.00037 ( 3 hom. )

Consequence

TMC6
NM_001127198.5 missense

Scores

1
17

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.312
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0036548376).
BP6
Variant 17-78124577-C-T is Benign according to our data. Variant chr17-78124577-C-T is described in ClinVar as [Benign]. Clinvar id is 456017.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00305 (464/152286) while in subpopulation AFR AF= 0.0105 (438/41572). AF 95% confidence interval is 0.00972. There are 7 homozygotes in gnomad4. There are 218 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMC6NM_001127198.5 linkuse as main transcriptc.838G>A p.Ala280Thr missense_variant 8/20 ENST00000590602.6 NP_001120670.1 Q7Z403-1A0A024R8V2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMC6ENST00000590602.6 linkuse as main transcriptc.838G>A p.Ala280Thr missense_variant 8/202 NM_001127198.5 ENSP00000465261.1 Q7Z403-1

Frequencies

GnomAD3 genomes
AF:
0.00304
AC:
463
AN:
152168
Hom.:
7
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0105
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00143
GnomAD3 exomes
AF:
0.000805
AC:
195
AN:
242200
Hom.:
1
AF XY:
0.000639
AC XY:
85
AN XY:
132986
show subpopulations
Gnomad AFR exome
AF:
0.00981
Gnomad AMR exome
AF:
0.000731
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000558
Gnomad SAS exome
AF:
0.0000988
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000102
Gnomad OTH exome
AF:
0.000337
GnomAD4 exome
AF:
0.000369
AC:
538
AN:
1459820
Hom.:
3
Cov.:
33
AF XY:
0.000337
AC XY:
245
AN XY:
726174
show subpopulations
Gnomad4 AFR exome
AF:
0.0104
Gnomad4 AMR exome
AF:
0.000537
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00123
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000531
Gnomad4 OTH exome
AF:
0.000829
GnomAD4 genome
AF:
0.00305
AC:
464
AN:
152286
Hom.:
7
Cov.:
33
AF XY:
0.00293
AC XY:
218
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.0105
Gnomad4 AMR
AF:
0.00105
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.000935
Hom.:
0
Bravo
AF:
0.00340
ESP6500AA
AF:
0.00781
AC:
34
ESP6500EA
AF:
0.000118
AC:
1
ExAC
AF:
0.00101
AC:
122
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000297

ClinVar

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

Submissions by phenotype

Epidermodysplasia verruciformis Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
3.0
DANN
Benign
0.74
DEOGEN2
Benign
0.0059
T;T;T;.;.;.
Eigen
Benign
-0.89
Eigen_PC
Benign
-0.92
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.45
.;.;T;T;T;T
MetaRNN
Benign
0.0037
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L;L;L;L;.;.
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.14
.;N;N;N;.;.
REVEL
Benign
0.038
Sift
Benign
0.65
.;T;T;T;.;.
Sift4G
Benign
0.65
T;T;T;T;T;.
Polyphen
0.0010
B;B;B;B;B;.
Vest4
0.11
MVP
0.27
MPC
0.15
ClinPred
0.00084
T
GERP RS
2.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.3
Varity_R
0.013
gMVP
0.28

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs146371375; hg19: chr17-76120658; COSMIC: COSV59808232; COSMIC: COSV59808232; API