7-141074678-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001195278.2(TMEM178B):​c.368C>T​(p.Ala123Val) variant causes a missense change. The variant allele was found at a frequency of 0.000289 in 1,505,436 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00030 ( 1 hom. )

Consequence

TMEM178B
NM_001195278.2 missense

Scores

3
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.31
Variant links:
Genes affected
TMEM178B (HGNC:44112): (transmembrane protein 178B) Predicted to be integral component of membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12031144).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM178BNM_001195278.2 linkuse as main transcriptc.368C>T p.Ala123Val missense_variant 1/4 ENST00000565468.6
TMEM178BXM_011515705.3 linkuse as main transcriptc.368C>T p.Ala123Val missense_variant 1/4
TMEM178BXM_017011636.2 linkuse as main transcriptc.368C>T p.Ala123Val missense_variant 1/4
TMEM178BXR_001744505.2 linkuse as main transcriptn.615C>T non_coding_transcript_exon_variant 1/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM178BENST00000565468.6 linkuse as main transcriptc.368C>T p.Ala123Val missense_variant 1/45 NM_001195278.2 P1
TMEM178BENST00000563442.1 linkuse as main transcriptn.286C>T non_coding_transcript_exon_variant 1/22

Frequencies

GnomAD3 genomes
AF:
0.000171
AC:
26
AN:
152228
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000353
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000944
AC:
11
AN:
116494
Hom.:
0
AF XY:
0.000127
AC XY:
8
AN XY:
63202
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000460
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:
0.000197
Gnomad OTH exome
AF:
0.000280
GnomAD4 exome
AF:
0.000302
AC:
409
AN:
1353208
Hom.:
1
Cov.:
35
AF XY:
0.000291
AC XY:
193
AN XY:
663300
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000607
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:
0.000363
Gnomad4 OTH exome
AF:
0.000391
GnomAD4 genome
AF:
0.000171
AC:
26
AN:
152228
Hom.:
0
Cov.:
33
AF XY:
0.000188
AC XY:
14
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000353
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000299
Hom.:
0
Bravo
AF:
0.000189
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000519
AC:
2

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 GeneticsMar 27, 2023The c.368C>T (p.A123V) alteration is located in exon 1 (coding exon 1) of the TMEM178B gene. This alteration results from a C to T substitution at nucleotide position 368, causing the alanine (A) at amino acid position 123 to be replaced by a valine (V). 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
0.10
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.39
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0086
T;T
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Benign
0.079
D
MetaRNN
Benign
0.12
T;T
MutationAssessor
Benign
0.69
N;.
MutationTaster
Benign
0.75
D
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.80
N;.
Sift
Benign
0.18
T;.
Sift4G
Benign
0.29
T;T
Vest4
0.091
MVP
0.48
GERP RS
3.7
Varity_R
0.10
gMVP
0.70

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: rs749990889; hg19: chr7-140774478; API