rs774395996

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1PM2PM5PP3_ModeratePP5

The NM_016035.5(COQ4):​c.433C>G​(p.Arg145Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000694 in 1,439,926 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 (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R145H) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

COQ4
NM_016035.5 missense

Scores

6
7
6

Clinical Significance

Pathogenic no assertion criteria provided P:1O:1

Conservation

PhyloP100: 6.22

Publications

15 publications found
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]
COQ4 Gene-Disease associations (from GenCC):
  • mitochondrial disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • neonatal encephalomyopathy-cardiomyopathy-respiratory distress syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 3 uncertain in NM_016035.5
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr9-128332184-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 2686020.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.892
PP5
Variant 9-128332183-C-G is Pathogenic according to our data. Variant chr9-128332183-C-G is described in ClinVar as Pathogenic. ClinVar VariationId is 189199.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COQ4NM_016035.5 linkc.433C>G p.Arg145Gly missense_variant Exon 5 of 7 ENST00000300452.8 NP_057119.3 Q9Y3A0-1
COQ4XM_047423449.1 linkc.*33C>G 3_prime_UTR_variant Exon 4 of 4 XP_047279405.1
COQ4NM_001305942.2 linkc.*3-1291C>G intron_variant Intron 3 of 3 NP_001292871.2 A0A024R890
COQ4XM_017014792.2 linkc.*3-667C>G intron_variant Intron 3 of 3 XP_016870281.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COQ4ENST00000300452.8 linkc.433C>G p.Arg145Gly missense_variant Exon 5 of 7 1 NM_016035.5 ENSP00000300452.3 Q9Y3A0-1
COQ4ENST00000461102.1 linkn.1772C>G non_coding_transcript_exon_variant Exon 1 of 2 2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000464
AC:
1
AN:
215486
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.94e-7
AC:
1
AN:
1439926
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
714440
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33040
American (AMR)
AF:
0.00
AC:
0
AN:
41238
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25622
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38478
South Asian (SAS)
AF:
0.0000121
AC:
1
AN:
82926
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51872
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5736
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1101404
Other (OTH)
AF:
0.00
AC:
0
AN:
59610
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Neonatal encephalomyopathy-cardiomyopathy-respiratory distress syndrome Pathogenic:1Other:1
-
GeneReviews
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Feb 05, 2015
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Benign
-0.070
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.56
D
Eigen
Pathogenic
0.85
Eigen_PC
Pathogenic
0.82
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.89
D
MetaSVM
Benign
-0.42
T
MutationAssessor
Pathogenic
3.4
M
PhyloP100
6.2
PrimateAI
Benign
0.44
T
PROVEAN
Pathogenic
-4.6
D
REVEL
Pathogenic
0.75
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.98
D
Vest4
0.81
MutPred
0.63
Loss of stability (P = 0.0191);
MVP
0.75
MPC
1.4
ClinPred
0.98
D
GERP RS
5.8
Varity_R
0.82
gMVP
0.57
Mutation Taster
=21/79
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs774395996; hg19: chr9-131094462; COSMIC: COSV55957022; API