22-42086214-AG-A

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_ModeratePM2PP5

The NM_002490.6(NDUFA6):​c.355del​(p.Leu119TyrfsTer20) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000212 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

NDUFA6
NM_002490.6 frameshift

Scores

Not classified

Clinical Significance

Pathogenic no assertion criteria provided P:2

Conservation

PhyloP100: 2.53
Variant links:
Genes affected
NDUFA6 (HGNC:7690): (NADH:ubiquinone oxidoreductase subunit A6) This gene encodes a member of the LYR family of proteins that contain a highly conserved tripeptide (LYR) motif near the N-terminus. The encoded protein is an accessory subunit of NADH: ubiquinone oxidorerductase (Complex I), which is the largest enzyme of the mitochondrial membrane respiratory chain. Complex I functions in electron transfer from NADH to the respiratory chain. [provided by RefSeq, Oct 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0827 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 22-42086214-AG-A is Pathogenic according to our data. Variant chr22-42086214-AG-A is described in ClinVar as [Pathogenic]. Clinvar id is 549666.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NDUFA6NM_002490.6 linkuse as main transcriptc.355del p.Leu119TyrfsTer20 frameshift_variant 3/3 ENST00000498737.8 NP_002481.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NDUFA6ENST00000498737.8 linkuse as main transcriptc.355del p.Leu119TyrfsTer20 frameshift_variant 3/31 NM_002490.6 ENSP00000418842 P1
NDUFA6ENST00000617763.1 linkuse as main transcriptc.433del p.Leu145TyrfsTer20 frameshift_variant 3/31 ENSP00000482543
NDUFA6ENST00000470753.1 linkuse as main transcriptc.184del p.Leu62TyrfsTer20 frameshift_variant 2/22 ENSP00000473478

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251488
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000212
AC:
31
AN:
1461884
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.0000270
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Mitochondrial complex 1 deficiency, nuclear type 33 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMDec 13, 2018- -
Mitochondrial disease Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingWellcome Centre for Mitochondrial Research, Newcastle UniversityJul 19, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs781099275; hg19: chr22-42482218; API