Genetic Variant COQ8B:p.Ala498Asp (chr19-40692177-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_024876.4(COQ8B):c.1493C>A(p.Ala498Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000577 in 1,595,458 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A498E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

COQ8B
NM_024876.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.54

Publications

1 publications found

Variant links:

Genes affected

COQ8B (HGNC:19041): (coenzyme Q8B) This gene encodes a protein with two copies of a domain found in protein kinases. The encoded protein has a complete protein kinase catalytic domain, and a truncated domain that contains only the active and binding sites of the protein kinase domain, however, it is not known whether the protein has any kinase activity. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

COQ8B Gene-Disease associations (from GenCC):

mitochondrial disease
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
nephrotic syndrome, type 9
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
familial idiopathic steroid-resistant nephrotic syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

COQ8B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.761

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024876.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COQ8B	NM_024876.4	MANE Select	c.1493C>A	p.Ala498Asp	missense	Exon 15 of 15	NP_079152.3
	COQ8B	NM_001142555.3		c.1370C>A	p.Ala457Asp	missense	Exon 14 of 14	NP_001136027.1	Q96D53-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
COQ8B	ENST00000324464.8	TSL:1 MANE Select	c.1493C>A	p.Ala498Asp	missense	Exon 15 of 15	ENSP00000315118.3	Q96D53-1
COQ8B	ENST00000243583.10	TSL:1	c.1370C>A	p.Ala457Asp	missense	Exon 14 of 14	ENSP00000243583.5	Q96D53-2
COQ8B	ENST00000871658.1		c.1538C>A	p.Ala513Asp	missense	Exon 15 of 15	ENSP00000541717.1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000707

AC:

AN:

212090

AF XY:

0.0000782

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000131

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000971

Gnomad OTH exome

AF:

0.000187

GnomAD4 exome

AF:

0.0000617

AC:

AN:

1443362

Hom.:

Cov.:

AF XY:

0.0000670

AC XY:

AN XY:

716702

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33056

American (AMR)

AF:

0.000144

AC:

AN:

41658

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25716

East Asian (EAS)

AF:

0.00

AC:

AN:

38638

South Asian (SAS)

AF:

0.00

AC:

AN:

83894

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51920

Middle Eastern (MID)

AF:

0.000874

AC:

AN:

5718

European-Non Finnish (NFE)

AF:

0.0000635

AC:

AN:

1103144

Other (OTH)

AF:

0.000134

AC:

AN:

59618

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

AN:

152096

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74288

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41414

American (AMR)

AF:

0.0000655

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67976

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.542

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000450

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000496

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.93

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Pathogenic

0.25

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.14

Eigen

Uncertain

0.20

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.92

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.76

MetaSVM

Benign

-0.38

PhyloP100

4.5

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-2.7

REVEL

Uncertain

0.53

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

0.36

Vest4

0.80

MutPred

0.67

Loss of helix (P = 0.0304)

MVP

0.79

MPC

0.65

ClinPred

0.21

GERP RS

5.4

Varity_R

0.64

gMVP

0.91

Mutation Taster

=53/47

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over