dbSNP rs150135875: EHMT1:p.Gly160Gly (chr9-137717020-C-T) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_024757.5(EHMT1):c.480C>T(p.Gly160Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00316 in 1,606,598 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0019 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0033 ( 13 hom. )

Consequence

EHMT1
NM_024757.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -0.0850

Publications

1 publications found

Variant links:

Genes affected

EHMT1 (HGNC:24650): (euchromatic histone lysine methyltransferase 1) The protein encoded by this gene is a histone methyltransferase that methylates the lysine-9 position of histone H3. This action marks the genomic region packaged with these methylated histones for transcriptional repression. This protein may be involved in the silencing of MYC- and E2F-responsive genes and therefore could play a role in the G0/G1 cell cycle transition. Defects in this gene are a cause of chromosome 9q subtelomeric deletion syndrome (9q-syndrome, also known as Kleefstra syndrome). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2017]

EHMT1 Gene-Disease associations (from GenCC):

Kleefstra syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
Kleefstra syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

EHMT1 links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_024757.5, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

BP6

Variant 9-137717020-C-T is Benign according to our data. Variant chr9-137717020-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 167034.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.085 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00186 (283/152254) while in subpopulation NFE AF = 0.00341 (232/67998). AF 95% confidence interval is 0.00305. There are 0 homozygotes in GnomAd4. There are 137 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High AC in GnomAd4 at 283 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024757.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
EHMT1	NM_024757.5	MANE Select	c.480C>T	p.Gly160Gly	synonymous	Exon 3 of 27	NP_079033.4
EHMT1	NM_001354263.2		c.480C>T	p.Gly160Gly	synonymous	Exon 3 of 27	NP_001341192.1
EHMT1	NM_001354259.2		c.387C>T	p.Gly129Gly	synonymous	Exon 2 of 16	NP_001341188.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
EHMT1	ENST00000460843.6	TSL:5 MANE Select	c.480C>T	p.Gly160Gly	synonymous	Exon 3 of 27	ENSP00000417980.1	Q9H9B1-1
EHMT1	ENST00000462484.5	TSL:1	c.480C>T	p.Gly160Gly	synonymous	Exon 3 of 16	ENSP00000417328.1	Q9H9B1-4
EHMT1	ENST00000896765.1		c.480C>T	p.Gly160Gly	synonymous	Exon 3 of 28	ENSP00000566824.1

Frequencies

GnomAD3 genomes

AF:

0.00186

AC:

283

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00341

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.00208

AC:

516

AN:

248196

AF XY:

0.00226

show subpopulations

Gnomad AFR exome

AF:

0.000497

Gnomad AMR exome

AF:

0.000671

Gnomad ASJ exome

AF:

0.000716

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000932

Gnomad NFE exome

AF:

0.00401

Gnomad OTH exome

AF:

0.00133

GnomAD4 exome

AF:

0.00330

AC:

4801

AN:

1454344

Hom.:

Cov.:

AF XY:

0.00332

AC XY:

2397

AN XY:

722360

show subpopulations

African (AFR)

AF:

0.000451

AC:

AN:

33230

American (AMR)

AF:

0.000744

AC:

AN:

44338

Ashkenazi Jewish (ASJ)

AF:

0.000463

AC:

AN:

25916

East Asian (EAS)

AF:

0.00

AC:

AN:

39568

South Asian (SAS)

AF:

0.000674

AC:

AN:

86062

European-Finnish (FIN)

AF:

0.000499

AC:

AN:

52084

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5734

European-Non Finnish (NFE)

AF:

0.00407

AC:

4512

AN:

1107344

Other (OTH)

AF:

0.00241

AC:

145

AN:

60068

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

342

685

1027

1370

1712

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

178

356

534

712

890

<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:

0.00186

AC:

283

AN:

152254

Hom.:

Cov.:

AF XY:

0.00184

AC XY:

137

AN XY:

74444

show subpopulations

African (AFR)

AF:

0.000578

AC:

AN:

41548

American (AMR)

AF:

0.00105

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00144

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.000207

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.000188

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00341

AC:

232

AN:

67998

Other (OTH)

AF:

0.00142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

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:

0.00218

Hom.:

Bravo

AF:

0.00179

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00338

EpiControl

AF:

0.00350

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

not specified (3)

Kleefstra syndrome 1 (2)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

4.7

(source)

DANN

Benign

0.61

PhyloP100

-0.085

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=93/7

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over