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GeneBe

12-44388394-C-T

Variant summary

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

The NM_032256.3(TMEM117):c.1267C>T(p.Arg423Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000307 in 1,613,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

TMEM117
NM_032256.3 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.16
Variant links:
Genes affected
TMEM117 (HGNC:25308): (transmembrane protein 117) Involved in intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress. Located in endoplasmic reticulum and plasma 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=0.059614778).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM117NM_032256.3 linkuse as main transcriptc.1267C>T p.Arg423Cys missense_variant 8/8 ENST00000266534.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM117ENST00000266534.8 linkuse as main transcriptc.1267C>T p.Arg423Cys missense_variant 8/81 NM_032256.3 P1
TMEM117ENST00000551577.5 linkuse as main transcriptc.*330C>T 3_prime_UTR_variant 7/71
TMEM117ENST00000546868.5 linkuse as main transcriptc.*744C>T 3_prime_UTR_variant, NMD_transcript_variant 7/71
TMEM117ENST00000546978.1 linkuse as main transcriptn.576C>T non_coding_transcript_exon_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.000132
AC:
20
AN:
152022
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000221
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000156
AC:
39
AN:
250432
Hom.:
0
AF XY:
0.000170
AC XY:
23
AN XY:
135388
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000164
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.0000465
Gnomad NFE exome
AF:
0.000265
Gnomad OTH exome
AF:
0.000328
GnomAD4 exome
AF:
0.000326
AC:
476
AN:
1461186
Hom.:
0
Cov.:
31
AF XY:
0.000334
AC XY:
243
AN XY:
726906
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.000396
Gnomad4 OTH exome
AF:
0.000348
GnomAD4 genome
AF:
0.000132
AC:
20
AN:
152022
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74262
show subpopulations
Gnomad4 AFR
AF:
0.0000725
Gnomad4 AMR
AF:
0.0000656
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000221
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000209
Hom.:
0
Bravo
AF:
0.000132
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000173
AC:
21
EpiCase
AF:
0.000109
EpiControl
AF:
0.000237

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 GeneticsFeb 23, 2023The c.1267C>T (p.R423C) alteration is located in exon 8 (coding exon 7) of the TMEM117 gene. This alteration results from a C to T substitution at nucleotide position 1267, causing the arginine (R) at amino acid position 423 to be replaced by a cysteine (C). 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
0.16
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.52
Cadd
Benign
23
Dann
Uncertain
0.98
DEOGEN2
Benign
0.0048
T
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.085
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.85
D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.060
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
0.96
D;D;D
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.050
N
REVEL
Benign
0.072
Sift
Uncertain
0.024
D
Sift4G
Benign
0.20
T
Polyphen
0.030
B
Vest4
0.11
MVP
0.18
MPC
0.73
ClinPred
0.055
T
GERP RS
4.8
Varity_R
0.085
gMVP
0.54

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: rs140040983; hg19: chr12-44782177; COSMIC: COSV56896053; COSMIC: COSV56896053; API