Genetic Variant COX4I2:p.Val10Leu (chr20-31639045-G-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032609.3(COX4I2):c.28G>T(p.Val10Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 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. V10M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

COX4I2
NM_032609.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.163

Publications

0 publications found

Variant links:

Genes affected

COX4I2 (HGNC:16232): (cytochrome c oxidase subunit 4I2) Cytochrome c oxidase (COX), the terminal enzyme of the mitochondrial respiratory chain, catalyzes the electron transfer from reduced cytochrome c to oxygen. It is a heteromeric complex consisting of 3 catalytic subunits encoded by mitochondrial genes and multiple structural subunits encoded by nuclear genes. The mitochondrially-encoded subunits function in electron transfer, and the nuclear-encoded subunits may be involved in the regulation and assembly of the complex. This nuclear gene encodes isoform 2 of subunit IV. Isoform 1 of subunit IV is encoded by a different gene, however, the two genes show a similar structural organization. Subunit IV is the largest nuclear encoded subunit which plays a pivotal role in COX regulation. [provided by RefSeq, Jul 2008]

COX4I2 Gene-Disease associations (from GenCC):

pancreatic insufficiency-anemia-hyperostosis syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
mitochondrial disease
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

COX4I2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.040753186).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032609.3. 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
	COX4I2	NM_032609.3	MANE Select	c.28G>T	p.Val10Leu	missense	Exon 2 of 5	NP_115998.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
COX4I2	ENST00000376075.4	TSL:1 MANE Select	c.28G>T	p.Val10Leu	missense	Exon 2 of 5	ENSP00000365243.3	Q96KJ9
COX4I2	ENST00000948152.1		c.28G>T	p.Val10Leu	missense	Exon 2 of 6	ENSP00000618211.1
COX4I2	ENST00000890502.1		c.28G>T	p.Val10Leu	missense	Exon 2 of 5	ENSP00000560561.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000807

AC:

AN:

247872

AF XY:

0.0000149

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460268

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726182

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44496

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26032

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39678

South Asian (SAS)

AF:

0.00

AC:

AN:

85642

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53366

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5746

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111498

Other (OTH)

AF:

0.00

AC:

AN:

60338

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

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

Cov.:

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.48

CADD

Benign

0.99

(source)

DANN

Benign

0.91

DEOGEN2

Benign

0.0071

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.37

M_CAP

Benign

0.012

MetaRNN

Benign

0.041

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.46

PhyloP100

0.16

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.33

REVEL

Benign

0.017

Sift

Benign

0.13

Sift4G

Benign

0.24

Polyphen

0.015

Vest4

0.11

MutPred

0.28

Loss of methylation at R12 (P = 0.1478)

MVP

0.27

MPC

0.12

ClinPred

0.033

GERP RS

1.3

Varity_R

0.031

gMVP

0.18

Mutation Taster

=93/7

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over