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GeneBe

rs16970849

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_152468.5(TMC8):c.1349+13G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0662 in 1,612,106 control chromosomes in the GnomAD database, including 7,418 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.11 ( 1506 hom., cov: 33)
Exomes 𝑓: 0.061 ( 5912 hom. )

Consequence

TMC8
NM_152468.5 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 1.98
Variant links:
Genes affected
TMC8 (HGNC:20474): (transmembrane channel like 8) 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 8 predicted transmembrane domains and 3 leucine zipper motifs. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 17-78137827-G-A is Benign according to our data. Variant chr17-78137827-G-A is described in ClinVar as [Benign]. Clinvar id is 1167028.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-78137827-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.219 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMC8NM_152468.5 linkuse as main transcriptc.1349+13G>A intron_variant ENST00000318430.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMC8ENST00000318430.10 linkuse as main transcriptc.1349+13G>A intron_variant 1 NM_152468.5 P2Q8IU68-1

Frequencies

GnomAD3 genomes
AF:
0.113
AC:
17211
AN:
152166
Hom.:
1494
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.195
Gnomad AMI
AF:
0.00548
Gnomad AMR
AF:
0.225
Gnomad ASJ
AF:
0.0493
Gnomad EAS
AF:
0.195
Gnomad SAS
AF:
0.0559
Gnomad FIN
AF:
0.0906
Gnomad MID
AF:
0.0411
Gnomad NFE
AF:
0.0450
Gnomad OTH
AF:
0.0965
GnomAD3 exomes
AF:
0.114
AC:
28334
AN:
248864
Hom.:
3282
AF XY:
0.0983
AC XY:
13271
AN XY:
135068
show subpopulations
Gnomad AFR exome
AF:
0.205
Gnomad AMR exome
AF:
0.350
Gnomad ASJ exome
AF:
0.0489
Gnomad EAS exome
AF:
0.194
Gnomad SAS exome
AF:
0.0486
Gnomad FIN exome
AF:
0.0849
Gnomad NFE exome
AF:
0.0454
Gnomad OTH exome
AF:
0.0889
GnomAD4 exome
AF:
0.0613
AC:
89483
AN:
1459822
Hom.:
5912
Cov.:
32
AF XY:
0.0593
AC XY:
43041
AN XY:
726256
show subpopulations
Gnomad4 AFR exome
AF:
0.204
Gnomad4 AMR exome
AF:
0.335
Gnomad4 ASJ exome
AF:
0.0497
Gnomad4 EAS exome
AF:
0.214
Gnomad4 SAS exome
AF:
0.0509
Gnomad4 FIN exome
AF:
0.0841
Gnomad4 NFE exome
AF:
0.0402
Gnomad4 OTH exome
AF:
0.0689
GnomAD4 genome
AF:
0.113
AC:
17267
AN:
152284
Hom.:
1506
Cov.:
33
AF XY:
0.118
AC XY:
8792
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.196
Gnomad4 AMR
AF:
0.225
Gnomad4 ASJ
AF:
0.0493
Gnomad4 EAS
AF:
0.195
Gnomad4 SAS
AF:
0.0557
Gnomad4 FIN
AF:
0.0906
Gnomad4 NFE
AF:
0.0450
Gnomad4 OTH
AF:
0.0978
Alfa
AF:
0.0530
Hom.:
99
Bravo
AF:
0.130
Asia WGS
AF:
0.133
AC:
463
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingUnidad de Genómica Garrahan, Hospital de Pediatría GarrahanJan 24, 2024This variant is classified as Benign based on local population frequency. This variant was detected in 43% of patients studied by a panel of primary immunodeficiencies. Number of patients: 38. Only high quality variants are reported. -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJul 09, 2018- -
Epidermodysplasia verruciformis Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
Cadd
Benign
12
Dann
Benign
0.79
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs16970849; hg19: chr17-76133908; COSMIC: COSV59211985; COSMIC: COSV59211985; API