Genetic Variant EHMT2:p.Arg807Trp (chr6-31884941-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_006709.5(EHMT2):c.2419C>T(p.Arg807Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000141 in 1,607,940 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

EHMT2
NM_006709.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.02

Variant links:

Genes affected

EHMT2 (HGNC:14129): (euchromatic histone lysine methyltransferase 2) This gene encodes a methyltransferase that methylates lysine residues of histone H3. Methylation of H3 at lysine 9 by this protein results in recruitment of additional epigenetic regulators and repression of transcription. This gene was initially thought to be two different genes, NG36 and G9a, adjacent to each other in the HLA locus. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

EHMT2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EHMT2	NM_006709.5 link	c.2419C>T	p.Arg807Trp	missense_variant	Exon 19 of 28	ENST00000375537.9	NP_006700.3	Q96KQ7-1A0A024RCN9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EHMT2	ENST00000375537.9 link	c.2419C>T	p.Arg807Trp	missense_variant	Exon 19 of 28	1	NM_006709.5	ENSP00000364687.4		Q96KQ7-1

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000439

AC:

AN:

250344

Hom.:

AF XY:

0.0000517

AC XY:

AN XY:

135374

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000970

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000148

AC:

216

AN:

1455804

Hom.:

Cov.:

AF XY:

0.000127

AC XY:

AN XY:

722956

show subpopulations

Gnomad4 AFR exome

AF:

0.0000599

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:

0.000180

Gnomad4 OTH exome

AF:

0.000250

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152136

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000330

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 06, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2419C>T (p.R807W) alteration is located in exon 19 (coding exon 19) of the EHMT2 gene. This alteration results from a C to T substitution at nucleotide position 2419, causing the arginine (R) at amino acid position 807 to be replaced by a tryptophan (W). 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

Pathogenic

0.69

BayesDel_addAF

Uncertain

0.093

BayesDel_noAF

Uncertain

0.090

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.23

.;.;.;T

Eigen

Benign

0.075

Eigen_PC

Benign

-0.040

FATHMM_MKL

Benign

0.42

M_CAP

Uncertain

0.089

MetaRNN

Uncertain

0.59

D;D;D;D

MetaSVM

Benign

-0.46

MutationAssessor

Uncertain

2.6

.;.;.;M

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-4.1

D;D;D;D

REVEL

Uncertain

0.44

Sift

Uncertain

0.0030

D;D;D;D

Sift4G

Uncertain

0.0090

D;D;D;D

Polyphen

1.0

.;D;D;D

Vest4

0.57

MVP

0.76

MPC

2.1

ClinPred

0.90

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.43

gMVP

0.79

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over