chr14-77341941-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_213601.3(TMED8):​c.808C>T​(p.Arg270Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,876 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

TMED8
NM_213601.3 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.15
Variant links:
Genes affected
TMED8 (HGNC:18633): (transmembrane p24 trafficking protein family member 8)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMED8NM_213601.3 linkuse as main transcriptc.808C>T p.Arg270Trp missense_variant 6/6 ENST00000216468.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMED8ENST00000216468.8 linkuse as main transcriptc.808C>T p.Arg270Trp missense_variant 6/61 NM_213601.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152134
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251172
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135758
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000753
AC:
11
AN:
1461742
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
727164
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152134
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 17, 2024The c.808C>T (p.R270W) alteration is located in exon 6 (coding exon 6) of the TMED8 gene. This alteration results from a C to T substitution at nucleotide position 808, causing the arginine (R) at amino acid position 270 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Benign
-0.068
T
BayesDel_noAF
Benign
-0.32
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.25
T
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.058
D
MetaRNN
Uncertain
0.68
D
MetaSVM
Benign
-0.58
T
MutationAssessor
Uncertain
2.6
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.68
T
PROVEAN
Pathogenic
-5.1
D
REVEL
Benign
0.24
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.57
MutPred
0.42
Loss of methylation at R272 (P = 0.0183);
MVP
0.79
MPC
0.89
ClinPred
0.99
D
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.65
gMVP
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs775408619; hg19: chr14-77808284; API