rs794727549
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_003482.4(KMT2D):c.7903C>T(p.Arg2635Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 33)
Consequence
KMT2D
NM_003482.4 stop_gained
NM_003482.4 stop_gained
Scores
3
2
2
Clinical Significance
Conservation
PhyloP100: 1.65
Genes affected
KMT2D (HGNC:7133): (lysine methyltransferase 2D) The protein encoded by this gene is a histone methyltransferase that methylates the Lys-4 position of histone H3. The encoded protein is part of a large protein complex called ASCOM, which has been shown to be a transcriptional regulator of the beta-globin and estrogen receptor genes. Mutations in this gene have been shown to be a cause of Kabuki syndrome. [provided by RefSeq, Oct 2010]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 18 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 12-49039867-G-A is Pathogenic according to our data. Variant chr12-49039867-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 196692.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-49039867-G-A is described in Lovd as [Pathogenic]. Variant chr12-49039867-G-A is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KMT2D | NM_003482.4 | c.7903C>T | p.Arg2635Ter | stop_gained | 32/55 | ENST00000301067.12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KMT2D | ENST00000301067.12 | c.7903C>T | p.Arg2635Ter | stop_gained | 32/55 | 5 | NM_003482.4 | A2 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Kabuki syndrome Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Feb 06, 2022 | For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 196692). This premature translational stop signal has been observed in individual(s) with Kabuki syndrome (PMID: 21658225, 27302555). This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Arg2635*) in the KMT2D gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in KMT2D are known to be pathogenic (PMID: 22126750). - |
not provided Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Oct 01, 2014 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Benign
D
MutationTaster
Benign
A
Vest4
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_AG_spliceai
Position offset: -30
Find out detailed SpliceAI scores and Pangolin per-transcript scores at