9-137716788-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024757.5(EHMT1):ā€‹c.248A>Gā€‹(p.Asp83Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,030 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…ā˜…).

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

EHMT1
NM_024757.5 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.28
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.17693198).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EHMT1NM_024757.5 linkuse as main transcriptc.248A>G p.Asp83Gly missense_variant 3/27 ENST00000460843.6 NP_079033.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EHMT1ENST00000460843.6 linkuse as main transcriptc.248A>G p.Asp83Gly missense_variant 3/275 NM_024757.5 ENSP00000417980 Q9H9B1-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250832
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135762
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:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461030
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726784
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Kleefstra syndrome 1 Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityNov 02, 2023- -
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 15, 2022In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 462982). This variant has not been reported in the literature in individuals affected with EHMT1-related conditions. This variant is present in population databases (rs770735510, gnomAD 0.0009%). This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 83 of the EHMT1 protein (p.Asp83Gly). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.072
BayesDel_addAF
Benign
-0.062
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.090
T;.;T;T;T;T;T;.;.;T
Eigen
Uncertain
0.26
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.88
D;D;D;D;D;D;D;D;D;D
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.18
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.37
T
MutationAssessor
Benign
0.55
N;N;.;.;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-1.4
N;N;.;.;.;.;.;.;.;.
REVEL
Benign
0.16
Sift
Uncertain
0.012
D;D;.;.;.;.;.;.;.;.
Sift4G
Uncertain
0.053
T;T;D;D;.;.;D;D;.;D
Polyphen
0.52
P;P;.;.;.;.;.;.;.;.
Vest4
0.32
MutPred
0.10
Gain of MoRF binding (P = 0.0404);Gain of MoRF binding (P = 0.0404);.;.;Gain of MoRF binding (P = 0.0404);.;.;.;.;.;
MVP
0.46
MPC
0.12
ClinPred
0.44
T
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.14
gMVP
0.27

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: rs770735510; hg19: chr9-140611240; API