20-32787362-G-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_Strong

The NM_006892.4(DNMT3B):​c.565G>T​(p.Ala189Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,614,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DNMT3B
NM_006892.4 missense

Scores

1
18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -3.91
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DNMT3B. . Gene score misZ 1.5 (greater than the threshold 3.09). Trascript score misZ 3.3234 (greater than threshold 3.09). GenCC has associacion of gene with immunodeficiency-centromeric instability-facial anomalies syndrome, immunodeficiency-centromeric instability-facial anomalies syndrome 1.
BP4
Computational evidence support a benign effect (MetaRNN=0.039694905).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DNMT3BNM_006892.4 linkuse as main transcriptc.565G>T p.Ala189Ser missense_variant 6/23 ENST00000328111.6 NP_008823.1 Q9UBC3-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DNMT3BENST00000328111.6 linkuse as main transcriptc.565G>T p.Ala189Ser missense_variant 6/231 NM_006892.4 ENSP00000328547.2 Q9UBC3-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251292
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135838
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461884
Hom.:
0
Cov.:
35
AF XY:
0.00000275
AC XY:
2
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152198
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.048
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
0.0020
DANN
Benign
0.78
DEOGEN2
Benign
0.058
T;.;.;.;.;.
Eigen
Benign
-1.9
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.048
N
LIST_S2
Benign
0.63
T;T;T;T;T;T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.040
T;T;T;T;T;T
MetaSVM
Uncertain
0.042
D
MutationAssessor
Benign
0.55
N;N;N;.;.;.
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.28
N;N;N;N;N;N
REVEL
Benign
0.28
Sift
Benign
0.35
T;T;T;T;T;T
Sift4G
Benign
0.67
T;T;T;T;T;T
Polyphen
0.020
B;B;B;.;.;B
Vest4
0.079
MutPred
0.049
Gain of glycosylation at A189 (P = 0.015);Gain of glycosylation at A189 (P = 0.015);Gain of glycosylation at A189 (P = 0.015);.;.;.;
MVP
0.54
MPC
0.16
ClinPred
0.15
T
GERP RS
-7.6
Varity_R
0.043
gMVP
0.24

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: rs147591633; hg19: chr20-31375168; API