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GeneBe

9-128322859-A-G

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_016035.5(COQ4):c.1A>G(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 0.00000576 in 1,562,270 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000057 ( 0 hom. )

Consequence

COQ4
NM_016035.5 start_lost

Scores

3
1
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.908
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 Pathogenic. Variant got 10 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COQ4NM_016035.5 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/7 ENST00000300452.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COQ4ENST00000300452.8 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/71 NM_016035.5 P1Q9Y3A0-1
COQ4ENST00000372875.3 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/42
COQ4ENST00000608951.5 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/32
COQ4ENST00000609948.1 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/22

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152248
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000117
AC:
2
AN:
171030
Hom.:
0
AF XY:
0.0000105
AC XY:
1
AN XY:
94972
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000785
Gnomad SAS exome
AF:
0.0000385
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000567
AC:
8
AN:
1410022
Hom.:
0
Cov.:
30
AF XY:
0.00000716
AC XY:
5
AN XY:
698382
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000540
Gnomad4 SAS exome
AF:
0.0000607
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.18e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152248
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74384
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000855
AC:
1

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
Uncertain significance, criteria provided, single submitterclinical testingBaylor GeneticsFeb 05, 2018This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.20
Cadd
Benign
21
Dann
Benign
0.92
DEOGEN2
Benign
0.0074
T;T;.;.
Eigen
Benign
-0.43
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.51
D
LIST_S2
Uncertain
0.90
D;D;D;D
M_CAP
Benign
0.035
D
MetaRNN
Pathogenic
0.94
D;D;D;D
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D
PROVEAN
Benign
-0.71
N;.;.;N
REVEL
Benign
0.25
Sift
Pathogenic
0.0
D;.;.;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
0.013
B;.;.;B
Vest4
0.63
MutPred
0.99
Loss of helix (P = 0.0104);Loss of helix (P = 0.0104);Loss of helix (P = 0.0104);Loss of helix (P = 0.0104);
MVP
0.21
ClinPred
0.71
D
GERP RS
4.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.91
gMVP
0.56

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: rs751764908; hg19: chr9-131085138; API