7-148828735-C-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PP3BP6_Very_StrongBS1BS2

The NM_004456.5(EZH2):​c.625+5G>A variant causes a splice donor 5th base, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000125 in 1,612,266 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00061 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000074 ( 0 hom. )

Consequence

EZH2
NM_004456.5 splice_donor_5th_base, intron

Scores

2
Splicing: ADA: 0.9996
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 3.29
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.
BP6
Variant 7-148828735-C-T is Benign according to our data. Variant chr7-148828735-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 459204.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000611 (93/152242) while in subpopulation AFR AF= 0.00205 (85/41542). AF 95% confidence interval is 0.00169. There are 0 homozygotes in gnomad4. There are 45 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 93 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EZH2NM_004456.5 linkuse as main transcriptc.625+5G>A splice_donor_5th_base_variant, intron_variant ENST00000320356.7 NP_004447.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EZH2ENST00000320356.7 linkuse as main transcriptc.625+5G>A splice_donor_5th_base_variant, intron_variant 1 NM_004456.5 ENSP00000320147 P4Q15910-2

Frequencies

GnomAD3 genomes
AF:
0.000611
AC:
93
AN:
152124
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00205
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000182
AC:
45
AN:
247418
Hom.:
0
AF XY:
0.000119
AC XY:
16
AN XY:
134038
show subpopulations
Gnomad AFR exome
AF:
0.00234
Gnomad AMR exome
AF:
0.000205
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:
0.0000740
AC:
108
AN:
1460024
Hom.:
0
Cov.:
31
AF XY:
0.0000661
AC XY:
48
AN XY:
726426
show subpopulations
Gnomad4 AFR exome
AF:
0.00265
Gnomad4 AMR exome
AF:
0.000294
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:
0.00
Gnomad4 OTH exome
AF:
0.0000995
GnomAD4 genome
AF:
0.000611
AC:
93
AN:
152242
Hom.:
0
Cov.:
32
AF XY:
0.000605
AC XY:
45
AN XY:
74432
show subpopulations
Gnomad4 AFR
AF:
0.00205
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000158
Hom.:
0
Bravo
AF:
0.000654

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

EZH2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 20, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxApr 29, 2021- -
Weaver syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.53
CADD
Benign
23
DANN
Benign
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.95
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: rs143615322; hg19: chr7-148525827; API