rs565573577

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_020247.5(COQ8A):​c.973C>T​(p.Arg325Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,612,186 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 (★★). Synonymous variant affecting the same amino acid position (i.e. R325R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

COQ8A
NM_020247.5 missense

Scores

4
10
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.04

Publications

1 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 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.788

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.973C>Tp.Arg325Trp
missense
Exon 8 of 15NP_064632.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COQ8A
ENST00000366777.4
TSL:1 MANE Select
c.973C>Tp.Arg325Trp
missense
Exon 8 of 15ENSP00000355739.3
COQ8A
ENST00000366778.5
TSL:1
c.817C>Tp.Arg273Trp
missense
Exon 8 of 15ENSP00000355740.1
ENSG00000288674
ENST00000366779.6
TSL:2
n.*5700C>T
non_coding_transcript_exon
Exon 25 of 32ENSP00000355741.2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152236
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000723
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
GnomAD2 exomes
AF:
0.0000284
AC:
7
AN:
246864
AF XY:
0.0000373
show subpopulations
Gnomad AFR exome
AF:
0.0000634
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000549
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000451
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000247
AC:
36
AN:
1459832
Hom.:
0
Cov.:
34
AF XY:
0.0000289
AC XY:
21
AN XY:
726126
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33454
American (AMR)
AF:
0.00
AC:
0
AN:
44648
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.0000505
AC:
2
AN:
39624
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86146
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52178
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000234
AC:
26
AN:
1111568
Other (OTH)
AF:
0.0000829
AC:
5
AN:
60342
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
3
5
8
10
13
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:
152354
Hom.:
0
Cov.:
33
AF XY:
0.0000268
AC XY:
2
AN XY:
74506
show subpopulations
African (AFR)
AF:
0.0000721
AC:
3
AN:
41588
American (AMR)
AF:
0.00
AC:
0
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
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

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:
0.00
Hom.:
0
ExAC
AF:
0.0000413
AC:
5

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
0.12
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.57
D
Eigen
Uncertain
0.31
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.77
D
LIST_S2
Uncertain
0.97
D
M_CAP
Benign
0.085
D
MetaRNN
Pathogenic
0.79
D
MetaSVM
Uncertain
0.17
D
PhyloP100
2.0
PrimateAI
Uncertain
0.59
T
PROVEAN
Pathogenic
-6.5
D
REVEL
Uncertain
0.56
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.91
MutPred
0.53
Loss of ubiquitination at K327 (P = 0.073)
MVP
0.85
MPC
0.31
ClinPred
0.98
D
GERP RS
-0.70
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.91
gMVP
0.74
Mutation Taster
=35/65
disease causing

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: rs565573577; hg19: chr1-227170628; API