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rs121918136

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_199069.2(NDUFAF3):c.2T>C(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000298 in 1,608,476 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

NDUFAF3
NM_199069.2 start_lost

Scores

5
4
7

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 0.803
Variant links:
Genes affected
NDUFAF3 (HGNC:29918): (NADH:ubiquinone oxidoreductase complex assembly factor 3) This gene encodes a mitochondrial complex I assembly protein that interacts with complex I subunits. Mutations in this gene cause mitochondrial complex I deficiency, a fatal neonatal disorder of the oxidative phosphorylation system. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2009]
DALRD3 (HGNC:25536): (DALR anticodon binding domain containing 3) The exact function of this gene is not known. It encodes a protein with a DALR anticodon binding domain similar to that of class Ia aminoacyl tRNA synthetases. This gene is located in a cluster of genes (with a complex sense-anti-sense genome architecture) on chromosome 3, and contains two micro RNA (miRNA) precursors (mir-425 and mir-191) in one of its introns. Preferential expression of this gene (the miRNAs and other genes in the cluster) in testis suggests a role of this gene in spermatogenesis (PMID:19906709). [provided by RefSeq, Feb 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 3-49022146-T-C is Pathogenic according to our data. Variant chr3-49022146-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 424.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NDUFAF3NM_199069.2 linkuse as main transcriptc.2T>C p.Met1? start_lost 1/5 ENST00000326925.11
NDUFAF3NM_199070.2 linkuse as main transcriptc.-94-200T>C intron_variant
NDUFAF3NM_199073.2 linkuse as main transcriptc.-94-200T>C intron_variant
NDUFAF3NM_199074.2 linkuse as main transcriptc.-94-200T>C intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NDUFAF3ENST00000326925.11 linkuse as main transcriptc.2T>C p.Met1? start_lost 1/51 NM_199069.2 P1Q9BU61-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152182
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000847
AC:
2
AN:
236260
Hom.:
0
AF XY:
0.00000771
AC XY:
1
AN XY:
129734
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:
0.0000191
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000316
AC:
46
AN:
1456294
Hom.:
0
Cov.:
32
AF XY:
0.0000290
AC XY:
21
AN XY:
724632
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:
0.0000378
Gnomad4 OTH exome
AF:
0.0000665
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152182
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000827
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Mitochondrial complex 1 deficiency, nuclear type 18 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJun 01, 2009- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.61
D
BayesDel_noAF
Pathogenic
0.36
Cadd
Benign
20
Dann
Benign
0.92
DEOGEN2
Benign
0.039
T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.66
D
LIST_S2
Uncertain
0.90
D
M_CAP
Pathogenic
0.93
D
MetaRNN
Pathogenic
0.99
D
MetaSVM
Uncertain
0.051
D
MutationTaster
Benign
1.0
A;A;A;A
PROVEAN
Benign
-1.6
N
REVEL
Uncertain
0.64
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.42
B
Vest4
0.88
MutPred
1.0
Gain of catalytic residue at M1 (P = 0.0101);
MVP
0.80
ClinPred
0.97
D
GERP RS
2.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.93
gMVP
0.48

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: rs121918136; hg19: chr3-49059579; API