4-947815-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.76G>A​(p.Ala26Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000384 in 1,613,252 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 1 hom. )

Consequence

TMEM175
NM_032326.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0600
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=0.016808003).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM175NM_032326.4 linkuse as main transcriptc.76G>A p.Ala26Thr missense_variant 2/11 ENST00000264771.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM175ENST00000264771.9 linkuse as main transcriptc.76G>A p.Ala26Thr missense_variant 2/111 NM_032326.4 P1Q9BSA9-1

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152222
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.0000479
AC:
12
AN:
250494
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135718
show subpopulations
Gnomad AFR exome
AF:
0.000556
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000253
AC:
37
AN:
1460912
Hom.:
1
Cov.:
33
AF XY:
0.0000261
AC XY:
19
AN XY:
726788
show subpopulations
Gnomad4 AFR exome
AF:
0.000388
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152340
Hom.:
0
Cov.:
33
AF XY:
0.000121
AC XY:
9
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.000481
Gnomad4 AMR
AF:
0.000327
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
Alfa
AF:
0.000193
Hom.:
0
Bravo
AF:
0.000234
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000412
AC:
5

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 GeneticsJul 06, 2021The c.76G>A (p.A26T) alteration is located in exon 2 (coding exon 1) of the TMEM175 gene. This alteration results from a G to A substitution at nucleotide position 76, causing the alanine (A) at amino acid position 26 to be replaced by a threonine (T). 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
0.071
BayesDel_addAF
Benign
-0.51
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
0.59
DANN
Benign
0.89
DEOGEN2
Benign
0.0096
T;T;.;T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.035
N
LIST_S2
Benign
0.41
T;T;T;T
M_CAP
Benign
0.0035
T
MetaRNN
Benign
0.017
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.35
.;N;.;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-0.70
N;N;N;N
REVEL
Benign
0.14
Sift
Benign
0.14
T;T;T;T
Sift4G
Benign
0.40
T;T;T;T
Polyphen
0.010
.;B;.;.
Vest4
0.084
MVP
0.22
MPC
0.15
ClinPred
0.070
T
GERP RS
-7.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.033
gMVP
0.42

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: rs150597099; hg19: chr4-941603; COSMIC: COSV105867649; COSMIC: COSV105867649; API