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GeneBe

rs121908945

Variant summary

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

The NM_006892.4(DNMT3B):c.88C>A(p.Gln30Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DNMT3B
NM_006892.4 missense

Scores

4
15

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 where missense usually causes diseases, DNMT3B
BP4
Computational evidence support a benign effect (MetaRNN=0.14553171).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNMT3BNM_006892.4 linkuse as main transcriptc.88C>A p.Gln30Lys missense_variant 2/23 ENST00000328111.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNMT3BENST00000328111.6 linkuse as main transcriptc.88C>A p.Gln30Lys missense_variant 2/231 NM_006892.4 A2Q9UBC3-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152114
Hom.:
0
Cov.:
32
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:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
250254
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135512
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461652
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727122
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152114
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
0.00073
T
BayesDel_noAF
Uncertain
-0.070
Cadd
Uncertain
24
Dann
Uncertain
0.99
DEOGEN2
Benign
0.10
T;.;.;.;.;.
Eigen
Benign
-0.075
Eigen_PC
Benign
-0.010
FATHMM_MKL
Benign
0.64
D
LIST_S2
Benign
0.74
T;T;T;T;T;T
M_CAP
Benign
0.082
D
MetaRNN
Benign
0.15
T;T;T;T;T;T
MetaSVM
Uncertain
0.42
D
MutationAssessor
Benign
0.81
L;L;L;L;L;.
MutationTaster
Benign
0.83
N;N;N;N;N;N;N;N
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-0.95
N;N;N;N;N;N
REVEL
Uncertain
0.30
Sift
Benign
0.13
T;T;T;T;T;T
Sift4G
Benign
1.0
T;T;T;T;T;T
Polyphen
0.95
P;P;P;.;.;P
Vest4
0.42
MutPred
0.22
Gain of ubiquitination at Q30 (P = 0.0054);Gain of ubiquitination at Q30 (P = 0.0054);Gain of ubiquitination at Q30 (P = 0.0054);Gain of ubiquitination at Q30 (P = 0.0054);Gain of ubiquitination at Q30 (P = 0.0054);.;
MVP
0.67
MPC
0.24
ClinPred
0.22
T
GERP RS
3.4
Varity_R
0.15
gMVP
0.21

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: rs121908945; hg19: chr20-31368217; COSMIC: COSV99142872; API