chr9-128323135-C-A

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PM5PP3_Strong

The NM_016035.5(COQ4):​c.190C>A​(p.Pro64Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,264 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P64S) has been classified as Pathogenic.

Frequency

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

Consequence

COQ4
NM_016035.5 missense

Scores

11
7
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.41
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.

PM1
In a chain Ubiquinone biosynthesis protein COQ4 homolog, mitochondrial (size 234) in uniprot entity COQ4_HUMAN there are 27 pathogenic changes around while only 3 benign (90%) 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 chr9-128323135-C-T is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.974

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
COQ4NM_016035.5 linkc.190C>A p.Pro64Thr missense_variant 2/7 ENST00000300452.8 NP_057119.3 Q9Y3A0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
COQ4ENST00000300452.8 linkc.190C>A p.Pro64Thr missense_variant 2/71 NM_016035.5 ENSP00000300452.3 Q9Y3A0-1
COQ4ENST00000372875.3 linkc.190C>A p.Pro64Thr missense_variant 2/42 ENSP00000361966.3 Q5T4B9
COQ4ENST00000608951.5 linkc.190C>A p.Pro64Thr missense_variant 2/32 ENSP00000476323.1 V9GY32
COQ4ENST00000609948.1 linkc.190C>A p.Pro64Thr missense_variant 2/22 ENSP00000477292.1 V9GZ09

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152264
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
34
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152264
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.53
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.22
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.70
D;D;.;.
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Pathogenic
0.97
D;D;D;D
M_CAP
Uncertain
0.20
D
MetaRNN
Pathogenic
0.97
D;D;D;D
MetaSVM
Uncertain
0.20
D
MutationAssessor
Pathogenic
3.6
H;.;.;.
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-7.2
D;.;.;D
REVEL
Pathogenic
0.66
Sift
Pathogenic
0.0
D;.;.;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
1.0
D;.;.;D
Vest4
0.92
MutPred
0.84
Gain of phosphorylation at P64 (P = 0.0228);Gain of phosphorylation at P64 (P = 0.0228);Gain of phosphorylation at P64 (P = 0.0228);Gain of phosphorylation at P64 (P = 0.0228);
MVP
0.86
MPC
1.3
ClinPred
1.0
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.89
gMVP
0.86

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: rs766317663; hg19: chr9-131085414; API