12-71139714-C-T

Variant summary

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

The NM_004616.3(TSPAN8):​c.258G>A​(p.Leu86=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0023 in 1,613,310 control chromosomes in the GnomAD database, including 92 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0026 ( 8 hom., cov: 33)
Exomes 𝑓: 0.0023 ( 84 hom. )

Consequence

TSPAN8
NM_004616.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.132
Variant links:
Genes affected
TSPAN8 (HGNC:11855): (tetraspanin 8) The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. This encoded protein is a cell surface glycoprotein that is known to complex with integrins. This gene is expressed in different carcinomas. The use of alternate polyadenylation sites has been found for this gene. [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=-0.68).
BP6
Variant 12-71139714-C-T is Benign according to our data. Variant chr12-71139714-C-T is described in ClinVar as [Benign]. Clinvar id is 779950.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.132 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00263 (400/152268) while in subpopulation EAS AF= 0.0494 (255/5158). AF 95% confidence interval is 0.0445. There are 8 homozygotes in gnomad4. There are 216 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 8 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSPAN8NM_004616.3 linkuse as main transcriptc.258G>A p.Leu86= synonymous_variant 4/9 ENST00000247829.8
TSPAN8NM_001369760.1 linkuse as main transcriptc.258G>A p.Leu86= synonymous_variant 3/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSPAN8ENST00000247829.8 linkuse as main transcriptc.258G>A p.Leu86= synonymous_variant 4/91 NM_004616.3 P1
TSPAN8ENST00000393330.6 linkuse as main transcriptc.258G>A p.Leu86= synonymous_variant 7/121 P1
TSPAN8ENST00000546561.2 linkuse as main transcriptc.258G>A p.Leu86= synonymous_variant 3/81 P1

Frequencies

GnomAD3 genomes
AF:
0.00262
AC:
398
AN:
152150
Hom.:
8
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00157
Gnomad ASJ
AF:
0.00634
Gnomad EAS
AF:
0.0493
Gnomad SAS
AF:
0.0118
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.00430
GnomAD3 exomes
AF:
0.00478
AC:
1196
AN:
250336
Hom.:
22
AF XY:
0.00487
AC XY:
659
AN XY:
135308
show subpopulations
Gnomad AFR exome
AF:
0.000492
Gnomad AMR exome
AF:
0.00110
Gnomad ASJ exome
AF:
0.00550
Gnomad EAS exome
AF:
0.0414
Gnomad SAS exome
AF:
0.00942
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000177
Gnomad OTH exome
AF:
0.00459
GnomAD4 exome
AF:
0.00227
AC:
3310
AN:
1461042
Hom.:
84
Cov.:
30
AF XY:
0.00249
AC XY:
1807
AN XY:
726836
show subpopulations
Gnomad4 AFR exome
AF:
0.000269
Gnomad4 AMR exome
AF:
0.000851
Gnomad4 ASJ exome
AF:
0.00652
Gnomad4 EAS exome
AF:
0.0495
Gnomad4 SAS exome
AF:
0.00902
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000819
Gnomad4 OTH exome
AF:
0.00424
GnomAD4 genome
AF:
0.00263
AC:
400
AN:
152268
Hom.:
8
Cov.:
33
AF XY:
0.00290
AC XY:
216
AN XY:
74458
show subpopulations
Gnomad4 AFR
AF:
0.000337
Gnomad4 AMR
AF:
0.00157
Gnomad4 ASJ
AF:
0.00634
Gnomad4 EAS
AF:
0.0494
Gnomad4 SAS
AF:
0.0122
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.00426
Alfa
AF:
0.000835
Hom.:
1
Bravo
AF:
0.00232
Asia WGS
AF:
0.0260
AC:
89
AN:
3478
EpiCase
AF:
0.000328
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 21, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
1.4
DANN
Benign
0.67

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: rs117090819; hg19: chr12-71533494; COSMIC: COSV56078238; COSMIC: COSV56078238; API