rs61739261

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001127198.5(TMC6):​c.1482C>T​(p.Ala494=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00381 in 1,613,194 control chromosomes in the GnomAD database, including 94 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.013 ( 45 hom., cov: 32)
Exomes 𝑓: 0.0028 ( 49 hom. )

Consequence

TMC6
NM_001127198.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.09
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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.5).
BP6
Variant 17-78121066-G-A is Benign according to our data. Variant chr17-78121066-G-A is described in ClinVar as [Benign]. Clinvar id is 526255.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.09 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0133 (2030/152270) while in subpopulation AFR AF= 0.0405 (1681/41534). AF 95% confidence interval is 0.0389. There are 45 homozygotes in gnomad4. There are 958 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 45 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMC6NM_001127198.5 linkuse as main transcriptc.1482C>T p.Ala494= synonymous_variant 12/20 ENST00000590602.6 NP_001120670.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMC6ENST00000590602.6 linkuse as main transcriptc.1482C>T p.Ala494= synonymous_variant 12/202 NM_001127198.5 ENSP00000465261 P1Q7Z403-1

Frequencies

GnomAD3 genomes
AF:
0.0133
AC:
2027
AN:
152152
Hom.:
45
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0405
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00753
Gnomad ASJ
AF:
0.0357
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.00113
Gnomad OTH
AF:
0.0129
GnomAD3 exomes
AF:
0.00528
AC:
1320
AN:
249976
Hom.:
16
AF XY:
0.00484
AC XY:
656
AN XY:
135556
show subpopulations
Gnomad AFR exome
AF:
0.0392
Gnomad AMR exome
AF:
0.00446
Gnomad ASJ exome
AF:
0.0319
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.000360
Gnomad FIN exome
AF:
0.0000926
Gnomad NFE exome
AF:
0.00137
Gnomad OTH exome
AF:
0.00770
GnomAD4 exome
AF:
0.00281
AC:
4112
AN:
1460924
Hom.:
49
Cov.:
32
AF XY:
0.00280
AC XY:
2033
AN XY:
726776
show subpopulations
Gnomad4 AFR exome
AF:
0.0430
Gnomad4 AMR exome
AF:
0.00494
Gnomad4 ASJ exome
AF:
0.0346
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000313
Gnomad4 FIN exome
AF:
0.0000190
Gnomad4 NFE exome
AF:
0.000937
Gnomad4 OTH exome
AF:
0.00684
GnomAD4 genome
AF:
0.0133
AC:
2030
AN:
152270
Hom.:
45
Cov.:
32
AF XY:
0.0129
AC XY:
958
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.0405
Gnomad4 AMR
AF:
0.00752
Gnomad4 ASJ
AF:
0.0357
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00113
Gnomad4 OTH
AF:
0.0128
Alfa
AF:
0.00967
Hom.:
8
Bravo
AF:
0.0148
Asia WGS
AF:
0.00346
AC:
13
AN:
3478
EpiCase
AF:
0.00240
EpiControl
AF:
0.00320

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Epidermodysplasia verruciformis Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
TMC6-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesOct 02, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.50
CADD
Benign
1.6
DANN
Benign
0.60
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs61739261; hg19: chr17-76117147; API