4-947802-G-C

Position:

Variant summary

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

The NM_032326.4(TMEM175):ā€‹c.63G>Cā€‹(p.Arg21Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,036 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (ā˜…).

Frequency

Genomes: š‘“ 0.000039 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000041 ( 0 hom. )

Consequence

TMEM175
NM_032326.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.53
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=0.053149104).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM175NM_032326.4 linkuse as main transcriptc.63G>C p.Arg21Ser missense_variant 2/11 ENST00000264771.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM175ENST00000264771.9 linkuse as main transcriptc.63G>C p.Arg21Ser missense_variant 2/111 NM_032326.4 P1Q9BSA9-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152224
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00000800
AC:
2
AN:
250008
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135564
show subpopulations
Gnomad AFR exome
AF:
0.000124
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1460812
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
2
AN XY:
726722
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
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:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152224
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74372
show subpopulations
Gnomad4 AFR
AF:
0.000121
Gnomad4 AMR
AF:
0.0000654
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:
0.0000282
Hom.:
0
Bravo
AF:
0.0000718
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0

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 GeneticsSep 27, 2021The c.63G>C (p.R21S) alteration is located in exon 2 (coding exon 1) of the TMEM175 gene. This alteration results from a G to C substitution at nucleotide position 63, causing the arginine (R) at amino acid position 21 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
0.12
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
0.012
DANN
Benign
0.50
DEOGEN2
Benign
0.0055
T;T;.;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.081
N
LIST_S2
Benign
0.58
T;T;T;T
M_CAP
Benign
0.0044
T
MetaRNN
Benign
0.053
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.46
.;N;.;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-0.88
N;N;N;N
REVEL
Benign
0.024
Sift
Benign
0.44
T;T;T;T
Sift4G
Benign
0.78
T;T;T;T
Polyphen
0.0
.;B;.;.
Vest4
0.10
MutPred
0.13
Gain of relative solvent accessibility (P = 0.2363);Gain of relative solvent accessibility (P = 0.2363);Gain of relative solvent accessibility (P = 0.2363);Gain of relative solvent accessibility (P = 0.2363);
MVP
0.085
MPC
0.17
ClinPred
0.076
T
GERP RS
-2.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.068
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: rs371061303; hg19: chr4-941590; API