rs763311061

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3PP5

The NM_020247.5(COQ8A):​c.1229G>A​(p.Arg410Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,611,492 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

COQ8A
NM_020247.5 missense

Scores

2
12
3

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2

Conservation

PhyloP100: 9.47

Publications

3 publications found
Variant links:
Genes affected
COQ8A (HGNC:16812): (coenzyme Q8A) This gene encodes a mitochondrial protein similar to yeast ABC1, which functions in an electron-transferring membrane protein complex in the respiratory chain. It is not related to the family of ABC transporter proteins. Expression of this gene is induced by the tumor suppressor p53 and in response to DNA damage, and inhibiting its expression partially suppresses p53-induced apoptosis. Alternatively spliced transcript variants have been found; however, their full-length nature has not been determined. [provided by RefSeq, Jul 2008]
COQ8A Gene-Disease associations (from GenCC):
  • autosomal recessive ataxia due to ubiquinone deficiency
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
  • coenzyme Q10 deficiency
    Inheritance: AR Classification: DEFINITIVE Submitted by: Illumina

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.804
PP5
Variant 1-226983827-G-A is Pathogenic according to our data. Variant chr1-226983827-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 434089.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020247.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COQ8A
NM_020247.5
MANE Select
c.1229G>Ap.Arg410Gln
missense
Exon 10 of 15NP_064632.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COQ8A
ENST00000366777.4
TSL:1 MANE Select
c.1229G>Ap.Arg410Gln
missense
Exon 10 of 15ENSP00000355739.3
COQ8A
ENST00000366778.5
TSL:1
c.1073G>Ap.Arg358Gln
missense
Exon 10 of 15ENSP00000355740.1
ENSG00000288674
ENST00000366779.6
TSL:2
n.*5956G>A
non_coding_transcript_exon
Exon 27 of 32ENSP00000355741.2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000323
AC:
8
AN:
247594
AF XY:
0.0000371
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000359
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1459292
Hom.:
0
Cov.:
34
AF XY:
0.0000165
AC XY:
12
AN XY:
726020
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33438
American (AMR)
AF:
0.0000895
AC:
4
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86182
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51950
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4994
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1111946
Other (OTH)
AF:
0.00
AC:
0
AN:
60270
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
34
AF XY:
0.0000135
AC XY:
1
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.0000654
AC:
1
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000581
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
Autosomal recessive ataxia due to ubiquinone deficiency (1)
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Uncertain
0.078
D
BayesDel_noAF
Uncertain
0.10
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.54
D
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.80
D
MetaSVM
Benign
-0.52
T
PhyloP100
9.5
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.6
D
REVEL
Benign
0.26
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0080
D
Polyphen
0.99
D
Vest4
0.88
MutPred
0.61
Loss of helix (P = 0.079)
MVP
0.78
MPC
0.16
ClinPred
0.91
D
GERP RS
5.5
Varity_R
0.86
gMVP
0.70
Mutation Taster
=5/95
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs763311061; hg19: chr1-227171528; COSMIC: COSV100825786; API