chr9-137779655-A-ACCCAAAGCAGCTGTACT

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_024757.5(EHMT1):​c.2214_2230dup​(p.Phe744SerfsTer73) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)

Consequence

EHMT1
NM_024757.5 frameshift

Scores

Not classified

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 0.307
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 Pathogenic. Variant got 11 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 9-137779655-A-ACCCAAAGCAGCTGTACT is Pathogenic according to our data. Variant chr9-137779655-A-ACCCAAAGCAGCTGTACT is described in ClinVar as [Pathogenic]. Clinvar id is 438289.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EHMT1NM_024757.5 linkuse as main transcriptc.2214_2230dup p.Phe744SerfsTer73 frameshift_variant 14/27 ENST00000460843.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EHMT1ENST00000460843.6 linkuse as main transcriptc.2214_2230dup p.Phe744SerfsTer73 frameshift_variant 14/275 NM_024757.5 Q9H9B1-1
ENST00000626603.1 linkuse as main transcriptn.1061-2268_1061-2267insAGTACAGCTGCTTTGGG intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Kleefstra syndrome 1 Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingMolecular Genetics Laboratory, BC Children's and BC Women's HospitalsMar 14, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs1554880275; hg19: chr9-140674107; API