Genetic Variant NM_032326.4:c.238G>A (chr4-950466-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

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

The NM_032326.4(TMEM175):c.238G>A(p.Val80Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000199 in 1,614,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00054 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

TMEM175
NM_032326.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.31

Variant links:

Genes affected

TMEM175 (HGNC:28709): (transmembrane protein 175) Enables potassium ion leak channel activity. Involved in potassium ion transmembrane transport. Located in endosome and lysosome. Is integral component of endosome membrane and integral component of lysosomal membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM175 links:

Genome browser will be placed here

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=0.045875132).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM175	NM_032326.4 link	c.238G>A	p.Val80Ile	missense_variant	Exon 4 of 11	ENST00000264771.9	NP_115702.1	Q9BSA9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM175	ENST00000264771.9 link	c.238G>A	p.Val80Ile	missense_variant	Exon 4 of 11	1	NM_032326.4	ENSP00000264771.4		Q9BSA9-1

Frequencies

GnomAD3 genomes

AF:

0.000539

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00174

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000195

AC:

AN:

251340

Hom.:

AF XY:

0.000162

AC XY:

AN XY:

135868

show subpopulations

Gnomad AFR exome

AF:

0.00178

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000616

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000163

AC:

238

AN:

1461790

Hom.:

Cov.:

AF XY:

0.000157

AC XY:

114

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00179

Gnomad4 AMR exome

AF:

0.000380

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000112

Gnomad4 OTH exome

AF:

0.000480

GnomAD4 genome

AF:

0.000545

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.000430

AC XY:

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.00176

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000164

Hom.:

Bravo

AF:

0.000706

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000206

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000273

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

Dec 19, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.238G>A (p.V80I) alteration is located in exon 4 (coding exon 3) of the TMEM175 gene. This alteration results from a G to A substitution at nucleotide position 238, causing the valine (V) at amino acid position 80 to be replaced by an isoleucine (I). 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

0.18

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.27

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.011

T;T;.;T

Eigen

Uncertain

0.34

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.90

D;D;D;D

M_CAP

Benign

0.039

MetaRNN

Benign

0.046

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.3

.;L;.;.

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-0.36

N;N;N;N

REVEL

Benign

0.19

Sift

Benign

0.34

T;T;T;T

Sift4G

Pathogenic

0.0

D;T;D;D

Polyphen

0.98

.;D;.;.

Vest4

0.64

MVP

0.19

MPC

0.21

ClinPred

0.068

GERP RS

4.9

Varity_R

0.12

gMVP

0.65

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.

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