17-79779392-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_005189.3(CBX2):​c.147C>T​(p.Ile49=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0239 in 1,613,810 control chromosomes in the GnomAD database, including 539 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.019 ( 53 hom., cov: 33)
Exomes 𝑓: 0.024 ( 486 hom. )

Consequence

CBX2
NM_005189.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.0500
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 Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.31).
BP6
Variant 17-79779392-C-T is Benign according to our data. Variant chr17-79779392-C-T is described in ClinVar as [Benign]. Clinvar id is 1614331.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-79779392-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.05 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0191 (2909/152290) while in subpopulation NFE AF= 0.0277 (1883/68012). AF 95% confidence interval is 0.0266. There are 53 homozygotes in gnomad4. There are 1406 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 53 SD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CBX2NM_005189.3 linkuse as main transcriptc.147C>T p.Ile49= synonymous_variant 3/5 ENST00000310942.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CBX2ENST00000310942.9 linkuse as main transcriptc.147C>T p.Ile49= synonymous_variant 3/51 NM_005189.3 P1Q14781-1
CBX2ENST00000269399.5 linkuse as main transcriptc.147C>T p.Ile49= synonymous_variant 3/41 Q14781-2
CBX2ENST00000571484.1 linkuse as main transcriptn.220C>T non_coding_transcript_exon_variant 3/31

Frequencies

GnomAD3 genomes
AF:
0.0191
AC:
2910
AN:
152172
Hom.:
54
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00388
Gnomad AMI
AF:
0.00877
Gnomad AMR
AF:
0.0253
Gnomad ASJ
AF:
0.0259
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.0145
Gnomad FIN
AF:
0.0200
Gnomad MID
AF:
0.0285
Gnomad NFE
AF:
0.0277
Gnomad OTH
AF:
0.0421
GnomAD3 exomes
AF:
0.0216
AC:
5399
AN:
250212
Hom.:
83
AF XY:
0.0226
AC XY:
3065
AN XY:
135598
show subpopulations
Gnomad AFR exome
AF:
0.00297
Gnomad AMR exome
AF:
0.0193
Gnomad ASJ exome
AF:
0.0258
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0152
Gnomad FIN exome
AF:
0.0185
Gnomad NFE exome
AF:
0.0299
Gnomad OTH exome
AF:
0.0298
GnomAD4 exome
AF:
0.0244
AC:
35685
AN:
1461520
Hom.:
486
Cov.:
32
AF XY:
0.0244
AC XY:
17748
AN XY:
727058
show subpopulations
Gnomad4 AFR exome
AF:
0.00406
Gnomad4 AMR exome
AF:
0.0208
Gnomad4 ASJ exome
AF:
0.0236
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.0155
Gnomad4 FIN exome
AF:
0.0191
Gnomad4 NFE exome
AF:
0.0268
Gnomad4 OTH exome
AF:
0.0258
GnomAD4 genome
AF:
0.0191
AC:
2909
AN:
152290
Hom.:
53
Cov.:
33
AF XY:
0.0189
AC XY:
1406
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.00387
Gnomad4 AMR
AF:
0.0252
Gnomad4 ASJ
AF:
0.0259
Gnomad4 EAS
AF:
0.000387
Gnomad4 SAS
AF:
0.0147
Gnomad4 FIN
AF:
0.0200
Gnomad4 NFE
AF:
0.0277
Gnomad4 OTH
AF:
0.0417
Alfa
AF:
0.0255
Hom.:
37
Bravo
AF:
0.0188
Asia WGS
AF:
0.00549
AC:
19
AN:
3478
EpiCase
AF:
0.0363
EpiControl
AF:
0.0341

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.31
CADD
Benign
12
DANN
Benign
0.89
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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.

Other links and lift over

dbSNP: rs35124694; hg19: chr17-77753191; API