chr20-8010251-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_021156.4(TMX4):​c.241G>A​(p.Gly81Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,612,088 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

TMX4
NM_021156.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.50
Variant links:
Genes affected
TMX4 (HGNC:25237): (thioredoxin related transmembrane protein 4) This gene encodes a member of the disulfide isomerase (PDI) family of endoplasmic reticulum (ER) proteins that catalyze protein folding and thiol-disulfide interchange reactions. The encoded protein has an N-terminal ER-signal sequence, a catalytically active thioredoxin domain, one transmembrane domain and C-terminal ASP/GLU-rich calcium binding domain. Unlike most members of this gene family, it lacks a C-terminal ER-retention sequence. The encoded protein has been shown to have reductase activity in vitro. [provided by RefSeq, Jan 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07494065).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMX4NM_021156.4 linkuse as main transcriptc.241G>A p.Gly81Ser missense_variant 2/8 ENST00000246024.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMX4ENST00000246024.7 linkuse as main transcriptc.241G>A p.Gly81Ser missense_variant 2/81 NM_021156.4 P1
TMX4ENST00000527925.1 linkuse as main transcriptc.241G>A p.Gly81Ser missense_variant 2/65
TMX4ENST00000530935.1 linkuse as main transcriptn.228G>A non_coding_transcript_exon_variant 2/64
TMX4ENST00000462384.6 linkuse as main transcriptc.*248G>A 3_prime_UTR_variant, NMD_transcript_variant 3/75

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152028
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000883
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000479
AC:
12
AN:
250542
Hom.:
0
AF XY:
0.0000591
AC XY:
8
AN XY:
135410
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:
0.000106
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000500
AC:
73
AN:
1459942
Hom.:
0
Cov.:
30
AF XY:
0.0000537
AC XY:
39
AN XY:
726316
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000648
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152146
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74416
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000883
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000697
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.000164
EpiControl
AF:
0.000119

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 GeneticsNov 17, 2023The c.241G>A (p.G81S) alteration is located in exon 2 (coding exon 2) of the TMX4 gene. This alteration results from a G to A substitution at nucleotide position 241, causing the glycine (G) at amino acid position 81 to be replaced by a serine (S). 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
0.11
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
22
DANN
Uncertain
0.98
DEOGEN2
Benign
0.021
T;.
Eigen
Benign
-0.15
Eigen_PC
Benign
0.088
FATHMM_MKL
Benign
0.60
D
LIST_S2
Benign
0.84
T;T
M_CAP
Benign
0.0062
T
MetaRNN
Benign
0.075
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-0.30
N;.
MutationTaster
Benign
0.94
D
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-1.7
N;N
REVEL
Benign
0.11
Sift
Benign
0.35
T;T
Sift4G
Benign
0.71
T;.
Polyphen
0.027
B;.
Vest4
0.26
MVP
0.46
MPC
0.28
ClinPred
0.13
T
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.12
gMVP
0.62

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: rs191545441; hg19: chr20-7990898; API