rs199592341

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005002.5(NDUFA9):​c.962G>A​(p.Arg321Gln) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000304 in 1,613,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

NDUFA9
NM_005002.5 missense, splice_region

Scores

2
8
9
Splicing: ADA: 0.02175
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.99
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.33591354).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NDUFA9NM_005002.5 linkc.962G>A p.Arg321Gln missense_variant, splice_region_variant Exon 10 of 11 ENST00000266544.10 NP_004993.1 Q16795

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NDUFA9ENST00000266544.10 linkc.962G>A p.Arg321Gln missense_variant, splice_region_variant Exon 10 of 11 1 NM_005002.5 ENSP00000266544.5 Q16795
ENSG00000255639ENST00000648836.1 linkc.962G>A p.Arg321Gln missense_variant, splice_region_variant Exon 10 of 15 ENSP00000497305.1 A0A3B3ISG8

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251400
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135866
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000260
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000308
AC:
45
AN:
1460816
Hom.:
0
Cov.:
31
AF XY:
0.0000303
AC XY:
22
AN XY:
726594
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000261
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152280
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000261
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Aug 31, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 321 of the NDUFA9 protein (p.Arg321Gln). This variant is present in population databases (rs199592341, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with NDUFA9-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.14
CADD
Benign
23
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.24
T;.;.
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.88
D;D;T
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.34
T;T;T
MetaSVM
Uncertain
-0.093
T
MutationAssessor
Uncertain
2.5
M;.;.
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-2.7
D;D;.
REVEL
Uncertain
0.51
Sift
Benign
0.034
D;D;.
Sift4G
Uncertain
0.022
D;D;.
Polyphen
0.89
P;.;.
Vest4
0.28
MVP
0.74
MPC
0.17
ClinPred
0.45
T
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.75
gMVP
0.90

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.022
dbscSNV1_RF
Benign
0.41
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: rs199592341; hg19: chr12-4794490; COSMIC: COSV99866170; COSMIC: COSV99866170; API