Genetic Variant NDUFS8:c.-1+182C>T (chr11-68030915-C-T) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBS1BS2

The NM_002496.4(NDUFS8):c.-1+182C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00492 in 382,894 control chromosomes in the GnomAD database, including 22 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.012 ( 17 hom., cov: 33)

Exomes 𝑓: 0.0014 ( 5 hom. )

Consequence

NDUFS8
NM_002496.4 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.661

Publications

2 publications found

Variant links:

Genes affected

NDUFS8 (HGNC:7715): (NADH:ubiquinone oxidoreductase core subunit S8) This gene encodes a subunit of mitochondrial NADH:ubiquinone oxidoreductase, or Complex I, a multimeric enzyme of the respiratory chain responsible for NADH oxidation, ubiquinone reduction, and the ejection of protons from mitochondria. The encoded protein is involved in the binding of two of the six to eight iron-sulfur clusters of Complex I and, as such, is required in the electron transfer process. Mutations in this gene have been associated with Leigh syndrome. [provided by RefSeq, Mar 2010]

NDUFS8 Gene-Disease associations (from GenCC):

mitochondrial complex I deficiency, nuclear type 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
Leigh syndrome
Inheritance: AR Classification: MODERATE Submitted by: ClinGen
Leigh syndrome with leukodystrophy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
mitochondrial complex I deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

NDUFS8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0121 (1516/125330) while in subpopulation AFR AF = 0.0437 (1434/32826). AF 95% confidence interval is 0.0418. There are 17 homozygotes in GnomAd4. There are 724 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 17 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NDUFS8	NM_002496.4 link	c.-1+182C>T		intron_variant	Intron 1 of 6	ENST00000313468.10	NP_002487.1	O00217

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NDUFS8	ENST00000313468.10 link	c.-1+182C>T		intron_variant	Intron 1 of 6	1	NM_002496.4	ENSP00000315774.5		O00217

Frequencies

GnomAD3 genomes

AF:

0.0121

AC:

1513

AN:

125226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0437

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00524

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:

0.0000180

Gnomad OTH

AF:

0.00708

GnomAD2 exomes

AF:

0.00217

AC:

231

AN:

106696

AF XY:

0.00200

show subpopulations

Gnomad AFR exome

AF:

0.0442

Gnomad AMR exome

AF:

0.00174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000127

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000919

GnomAD4 exome

AF:

0.00143

AC:

368

AN:

257564

Hom.:

Cov.:

AF XY:

0.00113

AC XY:

165

AN XY:

146414

show subpopulations

African (AFR)

AF:

0.0456

AC:

289

AN:

6336

American (AMR)

AF:

0.00187

AC:

AN:

23510

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

8238

East Asian (EAS)

AF:

0.00

AC:

AN:

7342

South Asian (SAS)

AF:

0.0000919

AC:

AN:

54414

European-Finnish (FIN)

AF:

0.00

AC:

AN:

11308

Middle Eastern (MID)

AF:

0.000432

AC:

AN:

2316

European-Non Finnish (NFE)

AF:

0.0000303

AC:

AN:

132200

Other (OTH)

AF:

0.00210

AC:

AN:

11900

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.546

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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

AF:

0.0121

AC:

1516

AN:

125330

Hom.:

Cov.:

AF XY:

0.0117

AC XY:

724

AN XY:

61620

show subpopulations

African (AFR)

AF:

0.0437

AC:

1434

AN:

32826

American (AMR)

AF:

0.00523

AC:

AN:

13186

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2928

East Asian (EAS)

AF:

0.00

AC:

AN:

4286

South Asian (SAS)

AF:

0.00

AC:

AN:

4258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9648

Middle Eastern (MID)

AF:

0.00

AC:

AN:

244

European-Non Finnish (NFE)

AF:

0.0000180

AC:

AN:

55530

Other (OTH)

AF:

0.00700

AC:

AN:

1714

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

158

236

315

394

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00483

Hom.:

Bravo

AF:

0.0118

Asia WGS

AF:

0.00375

AC:

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

1.6

(source)

DANN

Benign

0.94

PhyloP100

-0.66

PromoterAI

0.060

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over