Genetic Variant EHMT2:p.Asn881Ser (chr6-31884521-T-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_006709.5(EHMT2):c.2642A>G(p.Asn881Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,612,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

EHMT2
NM_006709.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.65

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 Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.861

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EHMT2	NM_006709.5 link	c.2642A>G	p.Asn881Ser	missense_variant	Exon 21 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.2642A>G	p.Asn881Ser	missense_variant	Exon 21 of 28	1	NM_006709.5	ENSP00000364687.4		Q96KQ7-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

GnomAD3 exomes

AF:

0.00000812

AC:

AN:

246390

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

134290

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:

0.0000181

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460712

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726676

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

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:

0.00

Alfa

AF:

0.000102

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.00000846

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 31, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2642A>G (p.N881S) alteration is located in exon 21 (coding exon 21) of the EHMT2 gene. This alteration results from a A to G substitution at nucleotide position 2642, causing the asparagine (N) at amino acid position 881 to be replaced by a serine (S). 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

0.99

BayesDel_addAF

Uncertain

0.014

BayesDel_noAF

Benign

-0.20

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

.;.;.;T

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Pathogenic

0.99

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.86

D;D;D;D

MetaSVM

Uncertain

0.037

MutationAssessor

Uncertain

2.4

.;.;.;M

PrimateAI

Uncertain

0.75

PROVEAN

Pathogenic

-4.6

D;D;D;D

REVEL

Pathogenic

0.67

Sift

Uncertain

0.0010

D;D;D;D

Sift4G

Uncertain

0.0050

D;D;D;D

Polyphen

1.0

.;D;D;D

Vest4

0.66

MutPred

0.53

.;Gain of disorder (P = 0.0643);.;.;

MVP

0.88

MPC

1.9

ClinPred

0.98

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.31

gMVP

0.84

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