14-73961742-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_182476.3(COQ6):​c.1216G>C​(p.Val406Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign 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. V406M) has been classified as Benign.

Frequency

Genomes: not found (cov: 31)

Consequence

COQ6
NM_182476.3 missense

Scores

1
18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.04
Variant links:
Genes affected
COQ6 (HGNC:20233): (coenzyme Q6, monooxygenase) The protein encoded by this gene belongs to the ubiH/COQ6 family. It is an evolutionarily conserved monooxygenase required for the biosynthesis of coenzyme Q10 (or ubiquinone), which is an essential component of the mitochondrial electron transport chain, and one of the most potent lipophilic antioxidants implicated in the protection of cell damage by reactive oxygen species. Knockdown of this gene in mouse and zebrafish results in decreased growth due to increased apoptosis. Mutations in this gene are associated with autosomal recessive coenzyme Q10 deficiency-6 (COQ10D6), which manifests as nephrotic syndrome with sensorineural deafness. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jun 2012]
ENTPD5 (HGNC:3367): (ectonucleoside triphosphate diphosphohydrolase 5 (inactive)) The protein encoded by this gene is similar to E-type nucleotidases (NTPases)/ecto-ATPase/apyrases. NTPases, such as CD39, mediate catabolism of extracellular nucleotides. ENTPD5 contains 4 apyrase-conserved regions which is characteristic of NTPases. [provided by RefSeq, Jan 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.043899745).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COQ6NM_182476.3 linkc.1216G>C p.Val406Leu missense_variant Exon 11 of 12 ENST00000334571.7 NP_872282.1 Q9Y2Z9-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COQ6ENST00000334571.7 linkc.1216G>C p.Val406Leu missense_variant Exon 11 of 12 1 NM_182476.3 ENSP00000333946.2 Q9Y2Z9-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Cov.:
48
GnomAD4 genome
Cov.:
31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
14
DANN
Benign
0.70
DEOGEN2
Benign
0.056
.;T;T
Eigen
Benign
-0.76
Eigen_PC
Benign
-0.49
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.52
T;T;T
M_CAP
Benign
0.0046
T
MetaRNN
Benign
0.044
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.69
.;.;N
PrimateAI
Benign
0.42
T
PROVEAN
Benign
0.59
N;.;N
REVEL
Benign
0.068
Sift
Benign
0.92
T;.;T
Sift4G
Benign
0.81
T;T;T
Polyphen
0.0
.;.;B
Vest4
0.090
MutPred
0.36
.;.;Gain of disorder (P = 0.1185);
MVP
0.21
MPC
0.29
ClinPred
0.19
T
GERP RS
4.1
Varity_R
0.049
gMVP
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: chr14-74428445; API