rs121908939
Positions:
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PP2PP3_StrongPP5
The NM_006892.4(DNMT3B):c.2450A>G(p.Asp817Gly) variant causes a missense change involving the alteration of a 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 (no stars). Synonymous variant affecting the same amino acid position (i.e. D817D) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 32)
Consequence
DNMT3B
NM_006892.4 missense
NM_006892.4 missense
Scores
13
5
1
Clinical Significance
Conservation
PhyloP100: 9.32
Genes affected
DNMT3B (HGNC:2979): (DNA methyltransferase 3 beta) CpG methylation is an epigenetic modification that is important for embryonic development, imprinting, and X-chromosome inactivation. Studies in mice have demonstrated that DNA methylation is required for mammalian development. This gene encodes a DNA methyltransferase which is thought to function in de novo methylation, rather than maintenance methylation. The protein localizes primarily to the nucleus and its expression is developmentally regulated. Mutations in this gene cause the immunodeficiency-centromeric instability-facial anomalies (ICF) syndrome. Eight alternatively spliced transcript variants have been described. The full length sequences of variants 4 and 5 have not been determined. [provided by RefSeq, May 2011]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 10 ACMG points.
PM1
?
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_006892.4
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, DNMT3B
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.948
PP5
?
Variant 20-32807791-A-G is Pathogenic according to our data. Variant chr20-32807791-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 6733.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr20-32807791-A-G is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
DNMT3B | NM_006892.4 | c.2450A>G | p.Asp817Gly | missense_variant | 23/23 | ENST00000328111.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
DNMT3B | ENST00000328111.6 | c.2450A>G | p.Asp817Gly | missense_variant | 23/23 | 1 | NM_006892.4 | A2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Immunodeficiency-centromeric instability-facial anomalies syndrome 1 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Nov 11, 1999 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
D;.;.;.;.;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
LIST_S2
Pathogenic
D;D;D;D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Uncertain
M;.;.;.;.;.
MutationTaster
Benign
A;A;A;A;A;A;A
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D;D;D;D;D
REVEL
Pathogenic
Sift
Pathogenic
D;D;D;D;D;D
Sift4G
Uncertain
D;D;D;D;D;D
Polyphen
D;D;D;.;.;D
Vest4
MutPred
Gain of MoRF binding (P = 0.0418);.;.;.;.;.;
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at