11-85631774-A-C

Position:

• chr11-85631774-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_018480.7(TMEM126B):​c.169A>C​(p.Ile57Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,924 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: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TMEM126B NM_018480.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.806

Genes affected

TMEM126B (HGNC:30883): (transmembrane protein 126B) This gene encodes a mitochondrial transmembrane protein which is a component of the mitochondrial complex I assembly complex. The encoded protein serves as an assembly factor that is required for formation of the membrane arm of the complex. It interacts with NADH dehydrogenase [ubiquinone] 1 alpha subcomplex assembly factor 13. Naturally occurring mutations in this gene are associated with isolated complex I deficiency. A pseudogene of this gene has been defined on chromosome 9. [provided by RefSeq, Apr 2017]

ACMG classification

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=0.21522081).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMEM126B	NM_018480.7	c.169A>C	p.Ile57Leu	missense_variant	2/5	ENST00000358867.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMEM126B	ENST00000358867.11	c.169A>C	p.Ile57Leu	missense_variant	2/5	2	NM_018480.7	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459924 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726264

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: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Dec 01, 2022

TMEM126B: PM2, PM3:Supporting, BP4 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.47
CADD	Benign	16
DANN	Benign	0.95
DEOGEN2	Benign	0.0064	.;T;.
Eigen	Benign	-0.32
Eigen_PC	Benign	-0.19
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.60	T;T;T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.22	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.9	.;L;L
MutationTaster	Benign	0.80	D;D;D
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-0.53	N;N;N
REVEL	Benign	0.046
Sift	Benign	0.26	T;T;T
Sift4G	Benign	0.20	T;T;T
Polyphen		0.018	.;B;.
Vest4		0.34
MutPred		0.73		.;Loss of methylation at K59 (P = 0.1014);Loss of methylation at K59 (P = 0.1014);
MVP		0.18
MPC		0.044
ClinPred		0.20	T
GERP RS		2.6
Varity_R		0.045
gMVP		0.33

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.

Other links and lift over

hg19: chr11-85342818;