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GeneBe

19-48342625-C-T

Variant summary

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

The NM_018273.4(TMEM143):c.880G>A(p.Val294Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

TMEM143
NM_018273.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.38
Variant links:
Genes affected
TMEM143 (HGNC:25603): (transmembrane protein 143) Predicted to act upstream of or within hematopoietic progenitor cell differentiation. Located in mitochondrion. [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=0.24667367).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM143NM_018273.4 linkuse as main transcriptc.880G>A p.Val294Ile missense_variant 6/8 ENST00000293261.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM143ENST00000293261.8 linkuse as main transcriptc.880G>A p.Val294Ile missense_variant 6/81 NM_018273.4 P1Q96AN5-1
TMEM143ENST00000377431.6 linkuse as main transcriptc.580G>A p.Val194Ile missense_variant 4/61 Q96AN5-2
TMEM143ENST00000435956.7 linkuse as main transcriptc.775G>A p.Val259Ile missense_variant 5/72
TMEM143ENST00000600816.1 linkuse as main transcriptn.367G>A non_coding_transcript_exon_variant 1/32

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152198
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250774
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135590
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1461614
Hom.:
0
Cov.:
32
AF XY:
0.0000165
AC XY:
12
AN XY:
727114
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000376
Gnomad4 NFE exome
AF:
0.0000162
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74346
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000508
Hom.:
0
ExAC
AF:
0.0000165
AC:
2
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.880G>A (p.V294I) alteration is located in exon 6 (coding exon 6) of the TMEM143 gene. This alteration results from a G to A substitution at nucleotide position 880, causing the valine (V) at amino acid position 294 to be replaced by an isoleucine (I). 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
-0.14
T
BayesDel_noAF
Benign
-0.34
Cadd
Uncertain
24
Dann
Uncertain
1.0
DEOGEN2
Benign
0.023
T;.;T
Eigen
Benign
0.16
Eigen_PC
Benign
0.21
FATHMM_MKL
Benign
0.70
D
LIST_S2
Uncertain
0.90
D;T;T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.25
T;T;T
MetaSVM
Benign
-0.86
T
MutationAssessor
Benign
1.6
L;.;.
MutationTaster
Benign
0.81
D;D;D;D;D
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-0.10
N;N;N
REVEL
Benign
0.13
Sift
Benign
0.35
T;T;T
Sift4G
Benign
0.24
T;T;T
Polyphen
1.0
D;P;P
Vest4
0.23
MutPred
0.36
Loss of catalytic residue at V294 (P = 0.025);.;.;
MVP
0.13
MPC
0.56
ClinPred
0.62
D
GERP RS
4.5
Varity_R
0.12
gMVP
0.38

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: rs753600045; hg19: chr19-48845882; COSMIC: COSV53156182; COSMIC: COSV53156182; API