Variant 17-79783735-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PM2PM5BP4_Strong

The NM_005189.3(CBX2):c.292C>G(p.Pro98Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,399,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 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. P98L) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CBX2
NM_005189.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0140

Variant links:

Genes affected

CBX2 (HGNC:1552): (chromobox 2) This gene encodes a component of the polycomb multiprotein complex, which is required to maintain the transcriptionally repressive state of many genes throughout development via chromatin remodeling and modification of histones. Disruption of this gene in mice results in male-to-female gonadal sex reversal. Mutations in this gene are also associated with gonadal dysgenesis in humans. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene.[provided by RefSeq, Mar 2010]

CBX2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr17-79783736-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 6826.Status of the report is no_assertion_criteria_provided, 0 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.03245473).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CBX2	NM_005189.3 linkuse as main transcript	c.292C>G	p.Pro98Ala	missense_variant	5/5	ENST00000310942.9
CBX2	XM_011525382.2 linkuse as main transcript	c.292C>G	p.Pro98Ala	missense_variant	5/6
CBX2	XM_011525383.3 linkuse as main transcript	c.37C>G	p.Pro13Ala	missense_variant	5/6
CBX2	XM_047436946.1 linkuse as main transcript	c.37C>G	p.Pro13Ala	missense_variant	4/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CBX2	ENST00000310942.9 linkuse as main transcript	c.292C>G	p.Pro98Ala	missense_variant	5/5	1	NM_005189.3	P1	Q14781-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000128

AC:

AN:

156626

Hom.:

AF XY:

0.0000121

AC XY:

AN XY:

82422

show subpopulations

Gnomad AFR exome

AF:

0.000227

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.00000143

AC:

AN:

1399620

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

690394

show subpopulations

Gnomad4 AFR exome

AF:

0.0000633

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 14, 2023

The c.292C>G (p.P98A) alteration is located in exon 5 (coding exon 5) of the CBX2 gene. This alteration results from a C to G substitution at nucleotide position 292, causing the proline (P) at amino acid position 98 to be replaced by an alanine (A). 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

0.052

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.59

CADD

Benign

1.9

DANN

Benign

0.64

DEOGEN2

Benign

0.17

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.65

M_CAP

Benign

0.0053

MetaRNN

Benign

0.032

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

MutationTaster

Benign

0.95

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.4

REVEL

Benign

0.022

Sift

Uncertain

0.0020

Sift4G

Benign

0.48

Polyphen

0.0040

Vest4

0.12

MutPred

0.24

Gain of MoRF binding (P = 0.043);

MVP

0.13

MPC

0.055

ClinPred

0.028

GERP RS

-0.64

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.028

gMVP

0.20

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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