Genetic Variant NM_005002.5:c.1078C>A (chr12-4687052-C-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PM5

The NM_005002.5(NDUFA9):c.1078C>A(p.Arg360Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,872 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R360C) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

NDUFA9
NM_005002.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.43

Publications

0 publications found

Variant links:

Genes affected

NDUFA9 (HGNC:7693): (NADH:ubiquinone oxidoreductase subunit A9) The encoded protein is a subunit of the hydrophobic protein fraction of the NADH:ubiquinone oxidoreductase (complex I), the first enzyme complex in the electron transport chain located in the inner mitochondrial membrane. A pseudogene has been identified on chromosome 12. [provided by RefSeq, May 2010]

NDUFA9 Gene-Disease associations (from GenCC):

Leigh syndrome
Inheritance: AR Classification: MODERATE, LIMITED Submitted by: ClinGen, G2P
Leigh syndrome with leukodystrophy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
mitochondrial complex I deficiency, nuclear type 26
Inheritance: AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

NDUFA9 links:

ENSG00000255639 (HGNC:):

ENSG00000255639 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr12-4687052-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 587683.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NDUFA9	NM_005002.5 link	c.1078C>A	p.Arg360Ser	missense_variant	Exon 11 of 11	ENST00000266544.10	NP_004993.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NDUFA9	ENST00000266544.10 link	c.1078C>A	p.Arg360Ser	missense_variant	Exon 11 of 11	1	NM_005002.5	ENSP00000266544.5
ENSG00000255639	ENST00000648836.1 link	c.963+1727C>A		intron_variant	Intron 10 of 14			ENSP00000497305.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461872

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727232

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1112010

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.408

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.50

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.050

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.079

T;.

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.92

D;D

M_CAP

Benign

0.053

MetaRNN

Uncertain

0.66

D;D

MetaSVM

Uncertain

0.070

MutationAssessor

Pathogenic

3.2

M;.

PhyloP100

5.4

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.6

N;D

REVEL

Uncertain

0.49

Sift

Benign

0.30

T;D

Sift4G

Benign

0.43

T;D

Polyphen

1.0

D;.

Vest4

0.63

MutPred

0.52

Loss of MoRF binding (P = 0.0149);.;

MVP

0.77

MPC

0.46

ClinPred

0.99

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.75

gMVP

0.89

Mutation Taster

=6/94

disease causing

(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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over