Genetic Variant COMMD8:p.Pro8Ser (chr4-47463630-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017845.5(COMMD8):c.22C>T(p.Pro8Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,549,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign 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. P8L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

COMMD8
NM_017845.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.273

Variant links:

Genes affected

COMMD8 (HGNC:26036): (COMM domain containing 8) The protein encoded by this gene binds coiled-coil domain-containing protein 22 (CCDC22), and this complex can regulate the turnover of I-kappa-B and the activation of NF-kappa-B. [provided by RefSeq, Jul 2016]

COMMD8 links:

ENSG00000282904 (HGNC:):

ENSG00000282904 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06566095).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COMMD8	NM_017845.5 link	c.22C>T	p.Pro8Ser	missense_variant	Exon 1 of 5	ENST00000381571.6	NP_060315.1	Q9NX08
COMMD8	NM_001329668.2 link	c.22C>T	p.Pro8Ser	missense_variant	Exon 1 of 5		NP_001316597.1	Q9NX08

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
COMMD8	ENST00000381571.6 link	c.22C>T	p.Pro8Ser	missense_variant	Exon 1 of 5	1	NM_017845.5	ENSP00000370984.4	Q9NX08
COMMD8	ENST00000509220.1 link	n.36C>T		non_coding_transcript_exon_variant	Exon 1 of 2	2
ENSG00000282904	ENST00000634784.2 link	n.41G>A		non_coding_transcript_exon_variant	Exon 1 of 3	3
ENSG00000282904	ENST00000635489.1 link	n.-154G>A		upstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152254

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

AF:

0.0000143

AC:

AN:

1396752

Hom.:

Cov.:

AF XY:

0.0000174

AC XY:

AN XY:

688856

show subpopulations

Gnomad4 AFR exome

AF:

0.0000636

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000158

Gnomad4 OTH exome

AF:

0.0000173

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74384

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.00

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:

0.0000302

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 14, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.22C>T (p.P8S) alteration is located in exon 1 (coding exon 1) of the COMMD8 gene. This alteration results from a C to T substitution at nucleotide position 22, causing the proline (P) at amino acid position 8 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.0039

Eigen

Benign

-0.45

Eigen_PC

Benign

-0.36

FATHMM_MKL

Benign

0.70

LIST_S2

Benign

0.65

M_CAP

Benign

0.0058

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.6

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-0.31

REVEL

Benign

0.069

Sift

Benign

0.37

Sift4G

Benign

0.43

Polyphen

0.011

Vest4

0.17

MutPred

0.52

Loss of glycosylation at P3 (P = 0.0225);

MVP

0.28

MPC

0.23

ClinPred

0.17

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.056

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over