Genetic Variant COX8C:p.Pro33Ser (chr14-93347365-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_182971.3(COX8C):c.97C>T(p.Pro33Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000191 in 1,570,128 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. P33T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

COX8C
NM_182971.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.72

Publications

1 publications found

Variant links:

Genes affected

COX8C (HGNC:24382): (cytochrome c oxidase subunit 8C) Predicted to be involved in mitochondrial electron transport, cytochrome c to oxygen. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

COX8C links:

UNC79 (HGNC:19966): (unc-79 homolog, NALCN channel complex subunit) The NALCN channel is responsible for Na(+) leak currents. The protein encoded by this gene, along with UNC80, is an accessory subunit of the NALCN channel that contributes to the Ca(2+) sensitivity of the channel. [provided by RefSeq, Sep 2016]

UNC79 Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics

UNC79 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08124995).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_182971.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
COX8C	NM_182971.3	MANE Select	c.97C>T	p.Pro33Ser	missense	Exon 1 of 2	NP_892016.1	Q7Z4L0
UNC79	NM_020818.5		c.-351+13842C>T		intron	N/A	NP_065869.3	Q9P2D8-2
UNC79	NR_144398.1		n.325-663C>T		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COX8C	ENST00000342144.3	TSL:1 MANE Select	c.97C>T	p.Pro33Ser	missense	Exon 1 of 2	ENSP00000340568.2	Q7Z4L0
	UNC79	ENST00000256339.8	TSL:5	c.-351+13842C>T		intron	N/A	ENSP00000256339.4	Q9P2D8-2

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152044

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

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:

0.00

AC:

AN:

190696

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000141

AC:

AN:

1418084

Hom.:

Cov.:

AF XY:

0.00000142

AC XY:

AN XY:

704440

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32020

American (AMR)

AF:

0.00

AC:

AN:

40018

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25064

East Asian (EAS)

AF:

0.00

AC:

AN:

38190

South Asian (SAS)

AF:

0.00

AC:

AN:

83658

European-Finnish (FIN)

AF:

0.00

AC:

AN:

38884

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5290

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1096244

Other (OTH)

AF:

0.0000341

AC:

AN:

58716

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

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:

0.00000658

AC:

AN:

152044

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74268

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41428

American (AMR)

AF:

0.00

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000194

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4786

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67978

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000904

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

0.90

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.13

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.019

M_CAP

Benign

0.0041

MetaRNN

Benign

0.081

MetaSVM

Benign

-1.0

PhyloP100

-2.7

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.012

Sift

Benign

0.25

Sift4G

Benign

0.41

Polyphen

0.20

Vest4

0.16

MutPred

0.50

Loss of catalytic residue at P33 (P = 0.0245)

MVP

0.014

MPC

1.0

ClinPred

0.16

GERP RS

-3.2

PromoterAI

-0.025

Neutral

(source)

Varity_R

0.031

gMVP

0.49

Mutation Taster

=95/5

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

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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