2-201078897-T-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_002491.3(NDUFB3):c.15T>G(p.His5Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000932 in 1,610,086 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

NDUFB3
NM_002491.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.359

Variant links:

Genes affected

NDUFB3 (HGNC:7698): (NADH:ubiquinone oxidoreductase subunit B3) This gene encodes an accessory subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) which is the first enzyme in the electron transport chain of mitochondria. This protein localizes to the inner membrane of the mitochondrion as a single-pass membrane protein. Mutations in this gene contribute to mitochondrial complex 1 deficiency. Alternative splicing results in multiple transcript variants encoding the same protein. Humans have multiple pseudogenes of this gene. [provided by RefSeq, Mar 2012]

NDUFB3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1

In a modified_residue Pros-methylhistidine (size 0) in uniprot entity NDUB3_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.40639412).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NDUFB3	NM_002491.3 link	c.15T>G	p.His5Gln	missense_variant	Exon 2 of 3	ENST00000237889.9	NP_002482.1	O43676A0A024R413
NDUFB3	NM_001257102.2 link	c.15T>G	p.His5Gln	missense_variant	Exon 3 of 4		NP_001244031.1	O43676A0A024R413
NDUFB3	XM_011511230.4 link	c.15T>G	p.His5Gln	missense_variant	Exon 3 of 4		XP_011509532.1	O43676A0A024R413
NDUFB3	XM_047444488.1 link	c.15T>G	p.His5Gln	missense_variant	Exon 3 of 4		XP_047300444.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NDUFB3	ENST00000237889.9 link	c.15T>G	p.His5Gln	missense_variant	Exon 2 of 3	1	NM_002491.3	ENSP00000237889.4		O43676

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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:

0.000479

GnomAD3 exomes

AF:

0.0000201

AC:

AN:

248878

Hom.:

AF XY:

0.0000223

AC XY:

AN XY:

134526

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000295

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:

0.0000266

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.00000617

AC:

AN:

1457968

Hom.:

Cov.:

AF XY:

0.00000827

AC XY:

AN XY:

725346

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000455

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:

0.00000360

Gnomad4 OTH exome

AF:

0.0000499

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74296

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000197

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:

0.000479

Alfa

AF:

0.0000480

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Nov 01, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.15T>G (p.H5Q) alteration is located in exon 2 (coding exon 1) of the NDUFB3 gene. This alteration results from a T to G substitution at nucleotide position 15, causing the histidine (H) at amino acid position 5 to be replaced by a glutamine (Q). 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

0.13

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.21

CADD

Benign

DANN

Uncertain

0.97

DEOGEN2

Benign

0.044

.;T;T;T

Eigen

Uncertain

0.38

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.55

T;.;.;T

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.41

T;T;T;T

MetaSVM

Uncertain

-0.093

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-2.8

D;D;D;D

REVEL

Uncertain

0.36

Sift

Uncertain

0.011

D;D;D;D

Sift4G

Uncertain

0.015

D;D;D;D

Polyphen

0.99

.;D;D;D

Vest4

0.29

MutPred

0.30

Gain of catalytic residue at H5 (P = 0.1188);Gain of catalytic residue at H5 (P = 0.1188);Gain of catalytic residue at H5 (P = 0.1188);Gain of catalytic residue at H5 (P = 0.1188);

MVP

0.94

MPC

0.16

ClinPred

0.49

GERP RS

5.1

Varity_R

0.20

gMVP

0.41

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.

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