chr1-226965042-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020247.5(COQ8A):ā€‹c.220G>Cā€‹(p.Gly74Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 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. G74S) has been classified as Uncertain significance.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 33)

Consequence

COQ8A
NM_020247.5 missense

Scores

1
1
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.05
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1885196).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
COQ8ANM_020247.5 linkuse as main transcriptc.220G>C p.Gly74Arg missense_variant 3/15 ENST00000366777.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
COQ8AENST00000366777.4 linkuse as main transcriptc.220G>C p.Gly74Arg missense_variant 3/151 NM_020247.5 P1Q8NI60-1
COQ8AENST00000366778.5 linkuse as main transcriptc.64G>C p.Gly22Arg missense_variant 3/151 Q8NI60-3
COQ8AENST00000489044.1 linkuse as main transcriptn.431G>C non_coding_transcript_exon_variant 3/53
COQ8AENST00000478406.5 linkuse as main transcriptn.107-12407G>C intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
32
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
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
Benign
0.091
BayesDel_addAF
Benign
-0.027
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
13
DANN
Uncertain
0.99
DEOGEN2
Benign
0.059
T;.;T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.079
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.65
.;T;T
M_CAP
Benign
0.025
D
MetaRNN
Benign
0.19
T;T;T
MetaSVM
Benign
-0.96
T
MutationTaster
Benign
1.0
D;D;D;N;N;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
0.15
N;N;N
REVEL
Benign
0.14
Sift
Benign
0.080
T;D;T
Sift4G
Benign
0.37
T;T;T
Polyphen
0.20
B;.;B
Vest4
0.31
MutPred
0.23
Loss of catalytic residue at G74 (P = 0.1009);.;Loss of catalytic residue at G74 (P = 0.1009);
MVP
0.57
MPC
0.050
ClinPred
0.53
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.052
gMVP
0.24

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: rs778948697; hg19: chr1-227152743; API