9-128322886-C-T

Variant summary

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

The NM_016035.5(COQ4):​c.28C>T​(p.Arg10Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000696 in 1,435,776 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

COQ4
NM_016035.5 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.26
Variant links:
Genes affected
COQ4 (HGNC:19693): (coenzyme Q4) This gene encodes a component of the coenzyme Q biosynthesis pathway. Coenzyme Q, an essential component of the electron transport chain, shuttles electrons between complexes I or II to complex III of the mitochondrial transport chain. This protein appears to play a structural role in stabilizing a complex that contains most of the coenzyme Q biosynthesis enzymes. Mutations in this gene are associated with mitochondrial disorders linked to coenzyme Q deficiency. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

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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=0.09826234).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COQ4NM_016035.5 linkc.28C>T p.Arg10Cys missense_variant Exon 1 of 7 ENST00000300452.8 NP_057119.3 Q9Y3A0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COQ4ENST00000300452.8 linkc.28C>T p.Arg10Cys missense_variant Exon 1 of 7 1 NM_016035.5 ENSP00000300452.3 Q9Y3A0-1
COQ4ENST00000372875.3 linkc.28C>T p.Arg10Cys missense_variant Exon 1 of 4 2 ENSP00000361966.3 Q5T4B9
COQ4ENST00000608951.5 linkc.28C>T p.Arg10Cys missense_variant Exon 1 of 3 2 ENSP00000476323.1 V9GY32
COQ4ENST00000609948.1 linkc.28C>T p.Arg10Cys missense_variant Exon 1 of 2 2 ENSP00000477292.1 V9GZ09

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.96e-7
AC:
1
AN:
1435776
Hom.:
0
Cov.:
30
AF XY:
0.00000140
AC XY:
1
AN XY:
713410
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:
9.06e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

Neonatal encephalomyopathy-cardiomyopathy-respiratory distress syndrome Uncertain:1
Jun 13, 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. 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: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with COQ4-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 10 of the COQ4 protein (p.Arg10Cys). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
13
DANN
Uncertain
0.98
DEOGEN2
Benign
0.012
T;T;.;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.023
N
LIST_S2
Benign
0.46
T;T;T;T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.098
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.90
L;.;.;.
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-1.8
N;.;.;N
REVEL
Benign
0.019
Sift
Uncertain
0.0040
D;.;.;D
Sift4G
Uncertain
0.013
D;D;D;D
Polyphen
0.0020
B;.;.;B
Vest4
0.17
MutPred
0.43
Loss of MoRF binding (P = 6e-04);Loss of MoRF binding (P = 6e-04);Loss of MoRF binding (P = 6e-04);Loss of MoRF binding (P = 6e-04);
MVP
0.30
MPC
0.53
ClinPred
0.20
T
GERP RS
-1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.13
gMVP
0.54

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-131085165; API