rs765591575

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_005004.4(NDUFB8):c.427A>G(p.Met143Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000067 in 1,611,732 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000072 ( 0 hom. )

Consequence

NDUFB8
NM_005004.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67

Variant links:

Genes affected

NDUFB8 (HGNC:7703): (NADH:ubiquinone oxidoreductase subunit B8) Involved in mitochondrial respiratory chain complex I assembly. Located in endoplasmic reticulum and mitochondrion. Part of mitochondrial respiratory chain complex I. Implicated in nuclear type mitochondrial complex I deficiency 32. Biomarker of Alzheimer's disease and Parkinson's disease. [provided by Alliance of Genome Resources, Apr 2022]

NDUFB8 links:

ENSG00000255339 (HGNC:):

ENSG00000255339 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1

In a chain NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial (size 157) in uniprot entity NDUB8_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_005004.4

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NDUFB8	NM_005004.4 link	c.427A>G	p.Met143Val	missense_variant	Exon 4 of 5	ENST00000299166.9	NP_004995.1	O95169-1
NDUFB8	NM_001284367.2 link	c.427A>G	p.Met143Val	missense_variant	Exon 4 of 5		NP_001271296.1	O95169-2
NDUFB8	NM_001284368.1 link	c.334A>G	p.Met112Val	missense_variant	Exon 4 of 5		NP_001271297.1	O95169-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NDUFB8	ENST00000299166.9 link	c.427A>G	p.Met143Val	missense_variant	Exon 4 of 5	1	NM_005004.4	ENSP00000299166.4		O95169-1
ENSG00000255339	ENST00000557395.5 link	n.427A>G		non_coding_transcript_exon_variant	Exon 4 of 10	2		ENSP00000456832.1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152072

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000602

AC:

AN:

249274

Hom.:

AF XY:

0.0000519

AC XY:

AN XY:

134872

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000207

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:

0.0000619

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000719

AC:

105

AN:

1459660

Hom.:

Cov.:

AF XY:

0.0000620

AC XY:

AN XY:

726216

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000204

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:

0.0000846

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152072

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74266

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000378

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000576

AC:

EpiCase

AF:

0.0000546

EpiControl

AF:

0.0000594

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Mar 08, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 143 of the NDUFB8 protein (p.Met143Val). This variant is present in population databases (rs765591575, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with NDUFB8-related conditions. ClinVar contains an entry for this variant (Variation ID: 2190087). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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

0.19

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Pathogenic

0.35

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.086

T;.;.

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.86

D;D;.

M_CAP

Benign

0.026

MetaRNN

Uncertain

0.70

D;D;D

MetaSVM

Benign

-0.34

MutationAssessor

Uncertain

2.5

M;.;M

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-2.0

N;N;N

REVEL

Uncertain

0.36

Sift

Benign

0.060

T;T;T

Sift4G

Uncertain

0.013

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.92

MutPred

0.45

Gain of catalytic residue at M143 (P = 0.0366);.;Gain of catalytic residue at M143 (P = 0.0366);

MVP

0.61

MPC

0.66

ClinPred

0.16

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.54

gMVP

0.91

Splicing

Name

Calibrated prediction

Score

Prediction

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over