Variant chr20-7999847-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_021156.4(TMX4):c.352A>G(p.Ile118Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,460,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

TMX4
NM_021156.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.31

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]

TMX4 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06608069).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMX4	NM_021156.4 linkuse as main transcript	c.352A>G	p.Ile118Val	missense_variant	4/8	ENST00000246024.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
TMX4	ENST00000246024.7 linkuse as main transcript	c.352A>G	p.Ile118Val	missense_variant	4/8	1	NM_021156.4	P1
TMX4	ENST00000527925.1 linkuse as main transcript	c.293-25A>G		intron_variant		5
TMX4	ENST00000530935.1 linkuse as main transcript	n.339A>G		non_coding_transcript_exon_variant	4/6	4
TMX4	ENST00000462384.6 linkuse as main transcript	c.*359A>G		3_prime_UTR_variant, NMD_transcript_variant	5/7	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

249492

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

134904

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:

0.0000266

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000103

AC:

AN:

1460468

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

726528

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

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:

0.0000117

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000388

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

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 submitter

clinical testing

Ambry Genetics

Nov 08, 2022

The c.352A>G (p.I118V) alteration is located in exon 4 (coding exon 4) of the TMX4 gene. This alteration results from a A to G substitution at nucleotide position 352, causing the isoleucine (I) at amino acid position 118 to be replaced by a valine (V). 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

0.077

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Benign

0.82

DEOGEN2

Benign

0.0046

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.067

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.70

M_CAP

Benign

0.0030

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.26

MutationTaster

Benign

0.78

PrimateAI

Uncertain

0.60

PROVEAN

Benign

0.15

REVEL

Benign

0.061

Sift

Benign

0.99

Sift4G

Benign

1.0

Polyphen

0.050

Vest4

0.12

MVP

0.41

MPC

0.14

ClinPred

0.096

GERP RS

5.5

La Branchor

0.31

Varity_R

0.025

gMVP

0.41

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over