Variant 11-85650268-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_032273.4(TMEM126A):c.13A>G(p.Lys5Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000694 in 1,441,310 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: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

TMEM126A
NM_032273.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0180

Variant links:

Genes affected

TMEM126A (HGNC:25382): (transmembrane protein 126A) The protein encoded by this gene is a mitochondrial membrane protein of unknown function. Defects in this gene are a cause of optic atrophy type 7 (OPA7). Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

TMEM126A links:

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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=0.039373368).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM126A	NM_032273.4 link	c.13A>G	p.Lys5Glu	missense_variant	2/5	ENST00000304511.7	NP_115649.1	Q9H061-1
TMEM126A	NM_001244735.2 link	c.-125+2179A>G		intron_variant			NP_001231664.1	Q9H061-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TMEM126A	ENST00000304511.7 link	c.13A>G	p.Lys5Glu	missense_variant	2/5	1	NM_032273.4	ENSP00000306887.2		Q9H061-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.94e-7

AC:

AN:

1441310

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

717730

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

9.12e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 03, 2021

This sequence change replaces lysine, which is basic and polar, with glutamic acid, which is acidic and polar, at codon 5 of the TMEM126A protein (p.Lys5Glu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TMEM126A-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamic acid amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.065

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.73

CADD

Benign

4.1

DANN

Benign

0.19

DEOGEN2

Benign

0.0018

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.053

LIST_S2

Benign

0.48

M_CAP

Benign

0.0080

MetaRNN

Benign

0.039

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

PrimateAI

Benign

0.30

PROVEAN

Benign

-0.22

REVEL

Benign

0.027

Sift

Benign

0.51

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.077

MutPred

0.42

Loss of ubiquitination at K5 (P = 0.002);

MVP

0.10

MPC

0.034

ClinPred

0.015

GERP RS

-2.5

Varity_R

0.043

gMVP

0.49

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over