chr7-148832759-G-GA

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_004456.5(EZH2):c.247-10dupT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00407 in 1,555,412 control chromosomes in the GnomAD database, including 19 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0029 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0042 ( 19 hom. )

Consequence

EZH2
NM_004456.5 intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.79

Publications

1 publications found

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]

EZH2 Gene-Disease associations (from GenCC):

Weaver syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P, ClinGen

EZH2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP6

Variant 7-148832759-G-GA is Benign according to our data. Variant chr7-148832759-G-GA is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 239931.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00295 (448/151972) while in subpopulation NFE AF = 0.0048 (326/67924). AF 95% confidence interval is 0.00437. There are 0 homozygotes in GnomAd4. There are 200 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 448 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EZH2	NM_004456.5 link	c.247-10dupT		intron_variant	Intron 3 of 19	ENST00000320356.7	NP_004447.2	Q15910-2A0A090N8E9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EZH2	ENST00000320356.7 link	c.247-10_247-9insT		intron_variant	Intron 3 of 19	1	NM_004456.5	ENSP00000320147.2		Q15910-2

Frequencies

GnomAD3 genomes

AF:

0.00295

AC:

448

AN:

151854

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000870

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00420

Gnomad ASJ

AF:

0.000577

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00114

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00480

Gnomad OTH

AF:

0.00335

GnomAD2 exomes

AF:

0.00286

AC:

691

AN:

241264

AF XY:

0.00287

show subpopulations

Gnomad AFR exome

AF:

0.000564

Gnomad AMR exome

AF:

0.00260

Gnomad ASJ exome

AF:

0.000749

Gnomad EAS exome

AF:

0.0000567

Gnomad FIN exome

AF:

0.00104

Gnomad NFE exome

AF:

0.00495

Gnomad OTH exome

AF:

0.00277

GnomAD4 exome

AF:

0.00419

AC:

5887

AN:

1403440

Hom.:

Cov.:

AF XY:

0.00406

AC XY:

2843

AN XY:

700048

show subpopulations

African (AFR)

AF:

0.000662

AC:

AN:

31726

American (AMR)

AF:

0.00284

AC:

117

AN:

41186

Ashkenazi Jewish (ASJ)

AF:

0.000918

AC:

AN:

25060

East Asian (EAS)

AF:

0.0000255

AC:

AN:

39258

South Asian (SAS)

AF:

0.000144

AC:

AN:

83174

European-Finnish (FIN)

AF:

0.000796

AC:

AN:

52756

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5604

European-Non Finnish (NFE)

AF:

0.00512

AC:

5459

AN:

1066702

Other (OTH)

AF:

0.00366

AC:

212

AN:

57974

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

269

538

806

1075

1344

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

198

396

594

792

990

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00295

AC:

448

AN:

151972

Hom.:

Cov.:

AF XY:

0.00269

AC XY:

200

AN XY:

74286

show subpopulations

African (AFR)

AF:

0.000868

AC:

AN:

41480

American (AMR)

AF:

0.00419

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.000577

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.000208

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00114

AC:

AN:

10524

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00480

AC:

326

AN:

67924

Other (OTH)

AF:

0.00332

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

105

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00360

Hom.:

Bravo

AF:

0.00328

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Weaver syndrome

Benign:2

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

EZH2-related disorder

Benign:1

May 08, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Oct 28, 2022

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

See Variant Classification Assertion Criteria. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.8

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over