chr20-13785092-G-A

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_024120.5(NDUFAF5):​c.24G>A​(p.Trp8Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,460,492 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

NDUFAF5
NM_024120.5 stop_gained

Scores

1
6

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:2

Conservation

PhyloP100: -0.0600
Variant links:
Genes affected
NDUFAF5 (HGNC:15899): (NADH:ubiquinone oxidoreductase complex assembly factor 5) The NADH-ubiquinone oxidoreductase complex (complex I) of the mitochondrial respiratory chain catalyzes the transfer of electrons from NADH to ubiquinone, and consists of at least 43 subunits. The complex is located in the inner mitochondrial membrane. This gene encodes a mitochondrial protein that is associated with the matrix face of the mitochondrial inner membrane and is required for complex I assembly. A mutation in this gene results in mitochondrial complex I deficiency. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 54 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 20-13785092-G-A is Pathogenic according to our data. Variant chr20-13785092-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 1982970.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NDUFAF5NM_024120.5 linkuse as main transcriptc.24G>A p.Trp8Ter stop_gained 1/11 ENST00000378106.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NDUFAF5ENST00000378106.10 linkuse as main transcriptc.24G>A p.Trp8Ter stop_gained 1/111 NM_024120.5 P1Q5TEU4-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000810
AC:
2
AN:
246946
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134502
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:
0.0000328
Gnomad FIN exome
AF:
0.0000478
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1460492
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726566
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:
0.0000348
Gnomad4 FIN exome
AF:
0.0000189
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000239
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000825
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Mitochondrial complex 1 deficiency, nuclear type 16 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsNov 29, 2023- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 28, 2022For these reasons, this variant has been classified as Pathogenic. This variant has not been reported in the literature in individuals affected with NDUFAF5-related conditions. This variant is present in population databases (rs763023951, gnomAD 0.005%). This sequence change creates a premature translational stop signal (p.Trp8*) in the NDUFAF5 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in NDUFAF5 are known to be pathogenic (PMID: 26275793, 30473481, 32918965). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.028
T
BayesDel_noAF
Benign
-0.10
CADD
Pathogenic
34
DANN
Benign
0.91
Eigen
Benign
-0.091
Eigen_PC
Benign
-0.49
FATHMM_MKL
Benign
0.41
N
MutationTaster
Benign
1.0
A;A
Vest4
0.085
GERP RS
-3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

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: rs763023951; hg19: chr20-13765738; API