chr7-148809375-G-A

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM1PM2PM5PP2PP3_Strong

The NM_004456.5(EZH2):​c.2045C>T​(p.Ala682Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A682G) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

EZH2
NM_004456.5 missense

Scores

16
2
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.63
Variant links:
Genes affected
EZH2 (HGNC:3527): (enhancer of zeste 2 polycomb repressive complex 2 subunit) This gene encodes a member of the Polycomb-group (PcG) family. PcG family members form multimeric protein complexes, which are involved in maintaining the transcriptional repressive state of genes over successive cell generations. This protein associates with the embryonic ectoderm development protein, the VAV1 oncoprotein, and the X-linked nuclear protein. This protein may play a role in the hematopoietic and central nervous systems. Multiple alternatively splcied transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Feb 2011]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 uncertain in NM_004456.5
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr7-148809375-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 376219.Status of the report is no_assertion_criteria_provided, 0 stars.
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), EZH2. . Gene score misZ 4.6808 (greater than the threshold 3.09). Trascript score misZ 5.1095 (greater than threshold 3.09). GenCC has associacion of gene with Weaver syndrome.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.982

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EZH2NM_004456.5 linkuse as main transcriptc.2045C>T p.Ala682Val missense_variant 18/20 ENST00000320356.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EZH2ENST00000320356.7 linkuse as main transcriptc.2045C>T p.Ala682Val missense_variant 18/201 NM_004456.5 P4Q15910-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
6.91e-7
AC:
1
AN:
1446614
Hom.:
0
Cov.:
31
AF XY:
0.00000140
AC XY:
1
AN XY:
716014
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.10e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.53
D
BayesDel_noAF
Pathogenic
0.53
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.66
.;D;.;.;.;.
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
.;D;D;D;D;D
M_CAP
Pathogenic
0.90
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.2
.;H;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-3.6
D;D;D;D;D;D
REVEL
Pathogenic
0.93
Sift
Pathogenic
0.0
D;D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D
Polyphen
1.0
D;D;D;D;D;D
Vest4
0.94
MutPred
0.86
.;Loss of sheet (P = 0.007);.;.;.;.;
MVP
0.98
MPC
2.5
ClinPred
1.0
D
GERP RS
5.1
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
3.7
Varity_R
0.98
gMVP
0.99

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-148506467; COSMIC: COSV57452912; COSMIC: COSV57452912; API