Genetic Variant CBX4:p.Val409Met (chr17-79834417-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_003655.3(CBX4):c.1225G>A(p.Val409Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,360,374 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 (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

CBX4
NM_003655.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.658

Publications

1 publications found

Variant links:

Genes affected

CBX4 (HGNC:1554): (chromobox 4) Enables SUMO binding activity; SUMO ligase activity; and enzyme binding activity. Involved in negative regulation of transcription by RNA polymerase II. Located in nuclear body. Part of PRC1 complex. Implicated in hepatocellular carcinoma. Biomarker of hepatocellular carcinoma. [provided by Alliance of Genome Resources, Apr 2022]

CBX4 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.063462526).

BS2

High AC in GnomAdExome4 at 16 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003655.3. 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
	CBX4	NM_003655.3	MANE Select	c.1225G>A	p.Val409Met	missense	Exon 5 of 5	NP_003646.2	A0A0S2Z5B2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CBX4	ENST00000269397.9	TSL:1 MANE Select	c.1225G>A	p.Val409Met	missense	Exon 5 of 5	ENSP00000269397.4	O00257-1
	CBX4	ENST00000961345.1		c.1159G>A	p.Val387Met	missense	Exon 4 of 4	ENSP00000631404.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000148

AC:

AN:

202254

AF XY:

0.00000887

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000332

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000118

AC:

AN:

1360374

Hom.:

Cov.:

AF XY:

0.0000104

AC XY:

AN XY:

674980

show subpopulations

African (AFR)

AF:

0.0000317

AC:

AN:

31584

American (AMR)

AF:

0.00

AC:

AN:

41182

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23236

East Asian (EAS)

AF:

0.00

AC:

AN:

34098

South Asian (SAS)

AF:

0.00

AC:

AN:

84136

European-Finnish (FIN)

AF:

0.00

AC:

AN:

27098

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3860

European-Non Finnish (NFE)

AF:

0.0000141

AC:

AN:

1060128

Other (OTH)

AF:

0.00

AC:

AN:

55052

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

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.:

Alfa

AF:

0.00

Hom.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.66

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0056

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.49

FATHMM_MKL

Benign

0.48

LIST_S2

Benign

0.78

M_CAP

Benign

0.019

MetaRNN

Benign

0.063

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

PhyloP100

0.66

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-0.33

REVEL

Benign

0.080

Sift

Benign

0.034

Sift4G

Benign

0.064

Polyphen

0.47

Vest4

0.055

MutPred

0.11

Gain of helix (P = 0.062)

MVP

0.33

MPC

0.77

ClinPred

0.15

GERP RS

1.3

Varity_R

0.090

gMVP

0.14

Mutation Taster

=92/8

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over