10-61431220-G-A

Variant summary

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

The NM_178505.8(TMEM26):​c.383C>T​(p.Thr128Met) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000677 in 1,610,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

TMEM26
NM_178505.8 missense, splice_region

Scores

2
17
Splicing: ADA: 0.01477
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.69
Variant links:
Genes affected
TMEM26 (HGNC:28550): (transmembrane protein 26) This gene encodes a protein containing multiple transmembrane helices. It is a selective surface protein marker of brite/beige adipocytes, which may coexist with classical brown adipocytes in brown adipose tissue. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Dec 2015]

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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=0.09938246).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM26NM_178505.8 linkuse as main transcriptc.383C>T p.Thr128Met missense_variant, splice_region_variant 3/6 ENST00000399298.8 NP_848600.2 Q6ZUK4-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM26ENST00000399298.8 linkuse as main transcriptc.383C>T p.Thr128Met missense_variant, splice_region_variant 3/61 NM_178505.8 ENSP00000382237.3 Q6ZUK4-1
TMEM26ENST00000488505.2 linkuse as main transcriptn.383C>T splice_region_variant, non_coding_transcript_exon_variant 3/71 ENSP00000426071.1 Q6ZUK4-2
TMEM26ENST00000277749.9 linkuse as main transcriptc.113C>T p.Thr38Met missense_variant, splice_region_variant 1/45 ENSP00000277749.5 H7BXI3
TMEM26ENST00000503886.5 linkuse as main transcriptn.383C>T splice_region_variant, non_coding_transcript_exon_variant 3/72 ENSP00000425286.1 Q6ZUK4-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152030
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000764
AC:
19
AN:
248632
Hom.:
0
AF XY:
0.0000741
AC XY:
10
AN XY:
134876
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000581
Gnomad ASJ exome
AF:
0.0000995
Gnomad EAS exome
AF:
0.0000557
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.0000621
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.0000699
AC:
102
AN:
1458728
Hom.:
0
Cov.:
29
AF XY:
0.0000772
AC XY:
56
AN XY:
725784
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.0000384
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000929
Gnomad4 FIN exome
AF:
0.000187
Gnomad4 NFE exome
AF:
0.0000676
Gnomad4 OTH exome
AF:
0.0000664
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.0000944
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000905
Hom.:
0
Bravo
AF:
0.0000756
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000993
AC:
12
Asia WGS
AF:
0.000578
AC:
2
AN:
3476
EpiCase
AF:
0.0000546
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 GeneticsJun 10, 2022The c.383C>T (p.T128M) alteration is located in exon 3 (coding exon 3) of the TMEM26 gene. This alteration results from a C to T substitution at nucleotide position 383, causing the threonine (T) at amino acid position 128 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
0.087
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.076
T;T
Eigen
Benign
0.15
Eigen_PC
Benign
0.14
FATHMM_MKL
Benign
0.69
D
LIST_S2
Uncertain
0.86
D;D
M_CAP
Benign
0.0070
T
MetaRNN
Benign
0.099
T;T
MetaSVM
Benign
-0.82
T
MutationAssessor
Benign
1.9
L;.
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-1.4
N;N
REVEL
Benign
0.23
Sift
Benign
0.11
T;D
Sift4G
Benign
0.088
T;T
Polyphen
0.94
P;.
Vest4
0.23
MVP
0.24
MPC
0.23
ClinPred
0.23
T
GERP RS
3.5
Varity_R
0.028
gMVP
0.25

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.015
dbscSNV1_RF
Benign
0.16
SpliceAI score (max)
0.010
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: rs200024457; hg19: chr10-63190978; COSMIC: COSV53261041; API