chr4-950466-G-A

Position:

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

2
5
12

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]

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/exons MANE UniProt
TMEM175NM_032326.4 linkuse as main transcriptc.238G>A p.Val80Ile missense_variant 4/11 ENST00000264771.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM175ENST00000264771.9 linkuse as main transcriptc.238G>A p.Val80Ile missense_variant 4/111 NM_032326.4 P1Q9BSA9-1

Frequencies

GnomAD3 genomes
AF:
0.000539
AC:
82
AN:
152202
Hom.:
0
Cov.:
32
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:
49
AN:
251340
Hom.:
0
AF XY:
0.000162
AC XY:
22
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.:
0
Cov.:
31
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:
83
AN:
152320
Hom.:
0
Cov.:
32
AF XY:
0.000430
AC XY:
32
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.:
0
Bravo
AF:
0.000706
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000206
AC:
25
Asia WGS
AF:
0.000577
AC:
2
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
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 19, 2022The 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
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
24
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
D
LIST_S2
Uncertain
0.90
D;D;D;D
M_CAP
Benign
0.039
D
MetaRNN
Benign
0.046
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.3
.;L;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.53
T
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
T
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.

Other links and lift over

dbSNP: rs151228848; hg19: chr4-944254; COSMIC: COSV53279654; COSMIC: COSV53279654; API