chr22-39134437-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_175709.5(CBX7):​c.562G>A​(p.Glu188Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000413 in 1,451,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CBX7
NM_175709.5 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.08
Variant links:
Genes affected
CBX7 (HGNC:1557): (chromobox 7) This gene encodes a protein that contains the CHROMO (CHRomatin Organization MOdifier) domain. The encoded protein is a component of the Polycomb repressive complex 1 (PRC1), and is thought to control the lifespan of several normal human cells. [provided by RefSeq, Oct 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.13476813).
BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CBX7NM_175709.5 linkuse as main transcriptc.562G>A p.Glu188Lys missense_variant 5/6 ENST00000216133.10 NP_783640.1 O95931A0A024R1Q2
CBX7NM_001346743.2 linkuse as main transcriptc.562G>A p.Glu188Lys missense_variant 5/6 NP_001333672.1
CBX7NM_001346744.2 linkuse as main transcriptc.283G>A p.Glu95Lys missense_variant 5/6 NP_001333673.1 Q4PNR6B0QYP2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CBX7ENST00000216133.10 linkuse as main transcriptc.562G>A p.Glu188Lys missense_variant 5/61 NM_175709.5 ENSP00000216133.5 O95931

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000129
AC:
3
AN:
232684
Hom.:
0
AF XY:
0.0000156
AC XY:
2
AN XY:
128318
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 SAS exome
AF:
0.0000329
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000190
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000413
AC:
6
AN:
1451418
Hom.:
0
Cov.:
32
AF XY:
0.00000554
AC XY:
4
AN XY:
722494
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000828
AC:
1

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 submitterclinical testingAmbry GeneticsMar 30, 2024The c.562G>A (p.E188K) alteration is located in exon 5 (coding exon 5) of the CBX7 gene. This alteration results from a G to A substitution at nucleotide position 562, causing the glutamic acid (E) at amino acid position 188 to be replaced by a lysine (K). 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
0.092
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.041
T;T
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.20
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.85
T;T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.13
T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.7
L;.
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.64
N;N
REVEL
Benign
0.091
Sift
Uncertain
0.021
D;T
Sift4G
Benign
0.27
T;T
Polyphen
0.10
B;P
Vest4
0.23
MutPred
0.23
Gain of ubiquitination at E188 (P = 0.0075);.;
MVP
0.50
MPC
0.38
ClinPred
0.24
T
GERP RS
2.4
Varity_R
0.16
gMVP
0.39

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: rs769000260; hg19: chr22-39530442; API