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GeneBe

12-125350058-C-T

Variant summary

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

The NM_001366854.1(TMEM132B):c.674C>T(p.Thr225Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000502 in 1,614,198 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 (★).

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

TMEM132B
NM_001366854.1 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.05
Variant links:
Genes affected
TMEM132B (HGNC:29397): (transmembrane protein 132B) Predicted to be integral component of 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=0.05317381).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM132BNM_001366854.1 linkuse as main transcriptc.674C>T p.Thr225Met missense_variant 2/9 ENST00000682704.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM132BENST00000682704.1 linkuse as main transcriptc.674C>T p.Thr225Met missense_variant 2/9 NM_001366854.1 P2
TMEM132BENST00000299308.7 linkuse as main transcriptc.659C>T p.Thr220Met missense_variant 2/95 A2Q14DG7-1
TMEM132BENST00000534945.2 linkuse as main transcriptn.607C>T non_coding_transcript_exon_variant 1/45

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152208
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000481
AC:
12
AN:
249440
Hom.:
0
AF XY:
0.0000517
AC XY:
7
AN XY:
135328
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000869
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000530
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.0000451
AC:
66
AN:
1461872
Hom.:
0
Cov.:
35
AF XY:
0.0000344
AC XY:
25
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000985
AC:
15
AN:
152326
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000977
Hom.:
0
Bravo
AF:
0.000113
ExAC
AF:
0.0000579
AC:
7
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsAug 02, 2021The c.659C>T (p.T220M) alteration is located in exon 2 (coding exon 2) of the TMEM132B gene. This alteration results from a C to T substitution at nucleotide position 659, causing the threonine (T) at amino acid position 220 to be replaced by a methionine (M). 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
0.088
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.61
Cadd
Benign
14
Dann
Benign
0.93
DEOGEN2
Benign
0.042
T
Eigen
Benign
-0.78
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.067
N
LIST_S2
Benign
0.83
T
M_CAP
Benign
0.0093
T
MetaRNN
Benign
0.053
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.11
Sift
Uncertain
0.0090
D
Sift4G
Benign
0.082
T
Polyphen
0.021
B
Vest4
0.060
MVP
0.072
MPC
0.51
ClinPred
0.040
T
GERP RS
0.81
Varity_R
0.036
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: rs201217999; hg19: chr12-125834604; API