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GeneBe

16-57447522-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020312.4(COQ9):c.17T>C(p.Val6Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000245 in 1,225,144 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. V6V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000019 ( 0 hom. )

Consequence

COQ9
NM_020312.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.811
Variant links:
Genes affected
COQ9 (HGNC:25302): (coenzyme Q9) This locus represents a mitochondrial ubiquinone biosynthesis gene. The encoded protein is likely necessary for biosynthesis of coenzyme Q10, as mutations at this locus have been associated with autosomal-recessive neonatal-onset primary coenzyme Q10 deficiency.[provided by RefSeq, Sep 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.081569344).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COQ9NM_020312.4 linkuse as main transcriptc.17T>C p.Val6Ala missense_variant 1/9 ENST00000262507.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COQ9ENST00000262507.11 linkuse as main transcriptc.17T>C p.Val6Ala missense_variant 1/91 NM_020312.4 P1O75208-1

Frequencies

GnomAD3 genomes
AF:
0.00000671
AC:
1
AN:
148986
Hom.:
0
Cov.:
34
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:
0.0000148
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000186
AC:
2
AN:
1076158
Hom.:
0
Cov.:
32
AF XY:
0.00000385
AC XY:
2
AN XY:
518912
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:
0.00000220
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000671
AC:
1
AN:
148986
Hom.:
0
Cov.:
34
AF XY:
0.0000138
AC XY:
1
AN XY:
72716
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:
0.0000148
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeDec 08, 2021This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 6 of the COQ9 protein (p.Val6Ala). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with COQ9-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.066
BayesDel_addAF
Benign
-0.066
T
BayesDel_noAF
Benign
-0.33
Cadd
Benign
13
Dann
Benign
0.64
DEOGEN2
Benign
0.0049
T;T;T;T;.
Eigen
Benign
-0.86
Eigen_PC
Benign
-0.83
FATHMM_MKL
Benign
0.0086
N
LIST_S2
Benign
0.54
T;T;T;T;T
M_CAP
Benign
0.0038
T
MetaRNN
Benign
0.082
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.89
L;.;.;.;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-0.83
N;N;N;N;N
REVEL
Benign
0.14
Sift
Benign
0.25
T;T;T;T;T
Sift4G
Benign
0.095
T;D;T;T;T
Polyphen
0.0010
B;.;.;.;.
Vest4
0.38
MutPred
0.44
Gain of disorder (P = 0.0174);Gain of disorder (P = 0.0174);Gain of disorder (P = 0.0174);Gain of disorder (P = 0.0174);Gain of disorder (P = 0.0174);
MVP
0.076
MPC
0.19
ClinPred
0.13
T
GERP RS
3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.31

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: rs1418552732; hg19: chr16-57481434; API