17-79781972-CT-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP6_ModerateBS2

The ENST00000269399.5(CBX2):​c.460del​(p.Cys154AlafsTer62) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00121 in 1,614,214 control chromosomes in the GnomAD database, including 9 homozygotes. Variant has been reported in ClinVar as Likely benign (β˜…).

Frequency

Genomes: 𝑓 0.0033 ( 4 hom., cov: 33)
Exomes 𝑓: 0.00099 ( 5 hom. )

Consequence

CBX2
ENST00000269399.5 frameshift

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.143
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP6
Variant 17-79781972-CT-C is Benign according to our data. Variant chr17-79781972-CT-C is described in ClinVar as [Likely_benign]. Clinvar id is 2648389.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAd4 at 4 SD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CBX2NM_005189.3 linkuse as main transcriptc.288+172del intron_variant ENST00000310942.9 NP_005180.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CBX2ENST00000269399.5 linkuse as main transcriptc.460del p.Cys154AlafsTer62 frameshift_variant 4/41 ENSP00000269399 Q14781-2
CBX2ENST00000310942.9 linkuse as main transcriptc.288+172del intron_variant 1 NM_005189.3 ENSP00000308750 P1Q14781-1

Frequencies

GnomAD3 genomes
AF:
0.00334
AC:
509
AN:
152234
Hom.:
4
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00815
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00556
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.00106
Gnomad OTH
AF:
0.00430
GnomAD3 exomes
AF:
0.00154
AC:
386
AN:
250806
Hom.:
3
AF XY:
0.00147
AC XY:
200
AN XY:
135806
show subpopulations
Gnomad AFR exome
AF:
0.00691
Gnomad AMR exome
AF:
0.00402
Gnomad ASJ exome
AF:
0.0000994
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000944
Gnomad OTH exome
AF:
0.00376
GnomAD4 exome
AF:
0.000991
AC:
1448
AN:
1461862
Hom.:
5
Cov.:
31
AF XY:
0.000989
AC XY:
719
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.00789
Gnomad4 AMR exome
AF:
0.00394
Gnomad4 ASJ exome
AF:
0.0000765
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000927
Gnomad4 FIN exome
AF:
0.000206
Gnomad4 NFE exome
AF:
0.000754
Gnomad4 OTH exome
AF:
0.00197
GnomAD4 genome
AF:
0.00333
AC:
508
AN:
152352
Hom.:
4
Cov.:
33
AF XY:
0.00322
AC XY:
240
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.00813
Gnomad4 AMR
AF:
0.00555
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.00106
Gnomad4 OTH
AF:
0.00426
Alfa
AF:
0.000870
Hom.:
0
Bravo
AF:
0.00397
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.000981
EpiControl
AF:
0.00142

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenApr 01, 2023CBX2: BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs552892809; hg19: chr17-77755771; COSMIC: COSV53969923; COSMIC: COSV53969923; API