chr9-137813100-G-A

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2

The NM_024757.5(EHMT1):​c.2962G>A​(p.Ala988Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000626 in 1,613,478 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00019 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

EHMT1
NM_024757.5 missense

Scores

1
4
14

Clinical Significance

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

Conservation

PhyloP100: 5.43
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.080397725).
BP6
Variant 9-137813100-G-A is Benign according to our data. Variant chr9-137813100-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 577444.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-137813100-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00019 (29/152286) while in subpopulation AFR AF= 0.000553 (23/41576). AF 95% confidence interval is 0.000378. There are 1 homozygotes in gnomad4. There are 20 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 29 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EHMT1NM_024757.5 linkuse as main transcriptc.2962G>A p.Ala988Thr missense_variant 20/27 ENST00000460843.6 NP_079033.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EHMT1ENST00000460843.6 linkuse as main transcriptc.2962G>A p.Ala988Thr missense_variant 20/275 NM_024757.5 ENSP00000417980 Q9H9B1-1

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
152168
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000555
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:
0.0000735
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000877
AC:
22
AN:
250810
Hom.:
0
AF XY:
0.0000885
AC XY:
12
AN XY:
135634
show subpopulations
Gnomad AFR exome
AF:
0.000800
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000493
AC:
72
AN:
1461192
Hom.:
0
Cov.:
32
AF XY:
0.0000454
AC XY:
33
AN XY:
726952
show subpopulations
Gnomad4 AFR exome
AF:
0.000866
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000342
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.000190
AC:
29
AN:
152286
Hom.:
1
Cov.:
33
AF XY:
0.000269
AC XY:
20
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.000553
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:
0.0000735
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000172
Hom.:
0
Bravo
AF:
0.000208
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Kleefstra syndrome 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 06, 2023- -
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJun 30, 2021This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
EHMT1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 31, 2023This 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). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.33
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.18
T;T;.
Eigen
Benign
0.074
Eigen_PC
Benign
0.15
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.88
D;D;D
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.080
T;T;T
MetaSVM
Benign
-0.57
T
MutationAssessor
Benign
1.7
L;.;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.53
T
PROVEAN
Uncertain
-2.5
D;.;.
REVEL
Benign
0.14
Sift
Benign
0.058
T;.;.
Sift4G
Benign
0.070
T;.;.
Polyphen
0.32
B;.;.
Vest4
0.42
MVP
0.68
MPC
1.7
ClinPred
0.077
T
GERP RS
4.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.44
gMVP
0.65

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.

Other links and lift over

dbSNP: rs565543981; hg19: chr9-140707552; COSMIC: COSV71777389; COSMIC: COSV71777389; API