rs770859652

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_006892.4(DNMT3B):​c.40G>A​(p.Ala14Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,774 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DNMT3B
NM_006892.4 missense

Scores

3
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.84
Variant links:
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 Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the DNMT3B gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 15 curated pathogenic missense variants (we use a threshold of 10). The gene has 33 curated benign missense variants. Gene score misZ: 1.5 (below the threshold of 3.09). Trascript score misZ: 3.3234 (above the threshold of 3.09). GenCC associations: The gene is linked to immunodeficiency-centromeric instability-facial anomalies syndrome, immunodeficiency-centromeric instability-facial anomalies syndrome 1.
BP4
Computational evidence support a benign effect (MetaRNN=0.12918729).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNMT3BNM_006892.4 linkc.40G>A p.Ala14Thr missense_variant Exon 2 of 23 ENST00000328111.6 NP_008823.1 Q9UBC3-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNMT3BENST00000328111.6 linkc.40G>A p.Ala14Thr missense_variant Exon 2 of 23 1 NM_006892.4 ENSP00000328547.2 Q9UBC3-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251112
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135788
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461774
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727182
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.018
T
BayesDel_noAF
Benign
-0.090
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.089
T;.;.;.;.;.
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.16
FATHMM_MKL
Benign
0.47
N
LIST_S2
Benign
0.79
T;T;T;T;T;T
M_CAP
Benign
0.058
D
MetaRNN
Benign
0.13
T;T;T;T;T;T
MetaSVM
Uncertain
0.22
D
MutationAssessor
Benign
0.34
N;N;N;N;N;.
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.93
N;N;N;N;N;N
REVEL
Benign
0.19
Sift
Benign
0.040
D;D;D;D;D;D
Sift4G
Uncertain
0.028
D;D;D;D;T;D
Polyphen
0.011
B;B;B;.;.;B
Vest4
0.23
MutPred
0.24
Gain of relative solvent accessibility (P = 0.0023);Gain of relative solvent accessibility (P = 0.0023);Gain of relative solvent accessibility (P = 0.0023);Gain of relative solvent accessibility (P = 0.0023);Gain of relative solvent accessibility (P = 0.0023);.;
MVP
0.69
MPC
0.17
ClinPred
0.33
T
GERP RS
2.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.074
gMVP
0.25

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: rs770859652; hg19: chr20-31368169; COSMIC: COSV52415517; API