NM_017421.4:c.604G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_017421.4(COQ3):c.604G>A(p.Val202Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00368 in 1,614,162 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0029 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0038 ( 16 hom. )

Consequence

COQ3
NM_017421.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.42

Publications

7 publications found

Variant links:

Genes affected

COQ3 (HGNC:18175): (coenzyme Q3, methyltransferase) Ubiquinone, also known as coenzyme Q, or Q, is a critical component of the electron transport pathways of both eukaryotes and prokaryotes (Jonassen and Clarke, 2000 [PubMed 10777520]). This lipid consists of a hydrophobic isoprenoid tail and a quinone head group. The tail varies in length depending on the organism, but its purpose is to anchor coenzyme Q to the membrane. The quinone head group is responsible for the activity of coenzyme Q in the respiratory chain. The S. cerevisiae COQ3 gene encodes an O-methyltransferase required for 2 steps in the biosynthetic pathway of coenzyme Q. This enzyme methylates an early coenzyme Q intermediate, 3,4-dihydroxy-5-polyprenylbenzoic acid, as well as the final intermediate in the pathway, converting demethyl-ubiquinone to coenzyme Q. The COQ3 gene product is also capable of methylating the distinct prokaryotic early intermediate 2-hydroxy-6-polyprenyl phenol.[supplied by OMIM, Mar 2008]

COQ3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.011256456).

BP6

Variant 6-99376065-C-T is Benign according to our data. Variant chr6-99376065-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 775079.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Homozygotes in GnomAdExome4 at 16 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017421.4. 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
	COQ3	NM_017421.4	MANE Select	c.604G>A	p.Val202Met	missense	Exon 5 of 7	NP_059117.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
COQ3	ENST00000254759.8	TSL:1 MANE Select	c.604G>A	p.Val202Met	missense	Exon 5 of 7	ENSP00000254759.3	Q9NZJ6
COQ3	ENST00000961104.1		c.808G>A	p.Val270Met	missense	Exon 7 of 9	ENSP00000631163.1
COQ3	ENST00000876257.1		c.451G>A	p.Val151Met	missense	Exon 4 of 6	ENSP00000546316.1

Frequencies

GnomAD3 genomes

AF:

0.00294

AC:

448

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000724

Gnomad AMI

AF:

0.0318

Gnomad AMR

AF:

0.00223

Gnomad ASJ

AF:

0.00346

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00160

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00472

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.00267

AC:

671

AN:

251358

AF XY:

0.00266

show subpopulations

Gnomad AFR exome

AF:

0.000861

Gnomad AMR exome

AF:

0.000607

Gnomad ASJ exome

AF:

0.00337

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00259

Gnomad NFE exome

AF:

0.00450

Gnomad OTH exome

AF:

0.00228

GnomAD4 exome

AF:

0.00376

AC:

5490

AN:

1461814

Hom.:

Cov.:

AF XY:

0.00367

AC XY:

2669

AN XY:

727214

show subpopulations

African (AFR)

AF:

0.000508

AC:

AN:

33480

American (AMR)

AF:

0.000626

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00298

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.000707

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00335

AC:

179

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00444

AC:

4933

AN:

1111966

Other (OTH)

AF:

0.00321

AC:

194

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

289

577

866

1154

1443

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

190

380

570

760

950

<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:

0.00293

AC:

447

AN:

152348

Hom.:

Cov.:

AF XY:

0.00285

AC XY:

212

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.000721

AC:

AN:

41584

American (AMR)

AF:

0.00216

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00346

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.000414

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00160

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00472

AC:

321

AN:

68038

Other (OTH)

AF:

0.00142

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

112

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:

0.00351

Hom.:

Bravo

AF:

0.00288

TwinsUK

AF:

0.00458

AC:

ALSPAC

AF:

0.00363

AC:

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00419

AC:

ExAC

AF:

0.00277

AC:

336

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.00322

EpiControl

AF:

0.00433

ClinVar

ClinVar submissions

Significance:Likely benign

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

Benign

0.12

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.13

Eigen

Benign

-0.14

Eigen_PC

Benign

-0.030

FATHMM_MKL

Benign

0.70

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.011

MetaRNN

Benign

0.011

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

PhyloP100

2.4

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.54

REVEL

Benign

0.030

Sift

Benign

0.14

Sift4G

Benign

0.15

Polyphen

0.16

Vest4

0.25

MVP

0.23

MPC

0.073

ClinPred

0.010

GERP RS

3.8

Varity_R

0.078

gMVP

0.34

Mutation Taster

=96/4

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