NM_016013.4:c.708G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_016013.4(NDUFAF1):c.708G>A(p.Met236Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00174 in 1,614,146 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M236L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0010 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0018 ( 6 hom. )

Consequence

NDUFAF1
NM_016013.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:6

Conservation

PhyloP100: 0.0210

Publications

7 publications found

Variant links:

Genes affected

NDUFAF1 (HGNC:18828): (NADH:ubiquinone oxidoreductase complex assembly factor 1) This gene encodes a complex I assembly factor protein. Complex I (NADH-ubiquinone oxidoreductase) catalyzes the transfer of electrons from NADH to ubiquinone (coenzyme Q) in the first step of the mitochondrial respiratory chain, resulting in the translocation of protons across the inner mitochondrial membrane. The encoded protein is required for assembly of complex I, and mutations in this gene are a cause of mitochondrial complex I deficiency. Alternatively spliced transcript variants have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 19. [provided by RefSeq, Dec 2011]

NDUFAF1 Gene-Disease associations (from GenCC):

mitochondrial disease
Inheritance: AR Classification: MODERATE Submitted by: ClinGen
mitochondrial complex I deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
mitochondrial complex I deficiency, nuclear type 11
Inheritance: AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

NDUFAF1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012604922).

BP6

Variant 15-41394910-C-T is Benign according to our data. Variant chr15-41394910-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 211580.

BS2

High Homozygotes in GnomAdExome4 at 6 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016013.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
NDUFAF1	NM_016013.4	MANE Select	c.708G>A	p.Met236Ile	missense	Exon 3 of 5	NP_057097.2
NDUFAF1	NM_001437486.1		c.708G>A	p.Met236Ile	missense	Exon 3 of 5	NP_001424415.1
NDUFAF1	NM_001437487.1		c.708G>A	p.Met236Ile	missense	Exon 3 of 5	NP_001424416.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NDUFAF1	ENST00000260361.9	TSL:1 MANE Select	c.708G>A	p.Met236Ile	missense	Exon 3 of 5	ENSP00000260361.4	Q9Y375
NDUFAF1	ENST00000559127.5	TSL:1	n.708G>A		non_coding_transcript_exon	Exon 3 of 6	ENSP00000453027.1	H0YL22
NDUFAF1	ENST00000853315.1		c.708G>A	p.Met236Ile	missense	Exon 2 of 5	ENSP00000523374.1

Frequencies

GnomAD3 genomes

AF:

0.00102

AC:

155

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000525

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00187

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.00124

AC:

311

AN:

251492

AF XY:

0.00119

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.000694

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000277

Gnomad NFE exome

AF:

0.00239

Gnomad OTH exome

AF:

0.000651

GnomAD4 exome

AF:

0.00182

AC:

2661

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00182

AC XY:

1327

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.000119

AC:

AN:

33480

American (AMR)

AF:

0.000827

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000812

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.000337

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00227

AC:

2527

AN:

1112006

Other (OTH)

AF:

0.00113

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

153

306

460

613

766

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

172

258

344

430

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00102

AC:

155

AN:

152262

Hom.:

Cov.:

AF XY:

0.000833

AC XY:

AN XY:

74440

show subpopulations

African (AFR)

AF:

0.000385

AC:

AN:

41562

American (AMR)

AF:

0.000524

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.0000942

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00187

AC:

127

AN:

68022

Other (OTH)

AF:

0.00142

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.511

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00180

Hom.:

Bravo

AF:

0.00114

TwinsUK

AF:

0.00189

AC:

ALSPAC

AF:

0.00208

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00267

AC:

ExAC

AF:

0.00134

AC:

163

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.00213

EpiControl

AF:

0.00231

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

Mitochondrial complex I deficiency, nuclear type 1 (1)

NDUFAF1-related disorder (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.0016

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.11

FATHMM_MKL

Benign

0.60

LIST_S2

Benign

0.64

M_CAP

Benign

0.017

MetaRNN

Benign

0.013

MetaSVM

Benign

-0.85

MutationAssessor

Benign

1.0

PhyloP100

0.021

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-0.17

REVEL

Benign

0.20

Sift

Benign

0.56

Sift4G

Benign

0.84

Polyphen

0.0040

Vest4

0.27

MutPred

0.41

Gain of catalytic residue at M236 (P = 0.0317)

MVP

0.71

MPC

0.087

ClinPred

0.027

GERP RS

5.6

Varity_R

0.13

gMVP

0.33

Mutation Taster

=97/3

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over