rs10485500

Positions:

• chr20-32779305-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_006892.4(DNMT3B):​c.-6-1013C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0722 in 152,298 control chromosomes in the GnomAD database, including 1,255 homozygotes. 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 0.072 (1255 hom., cov: 33)
• Consequence: DNMT3B NM_006892.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.21

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.239 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNMT3B	NM_006892.4	c.-6-1013C>T		intron_variant		ENST00000328111.6	NP_008823.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNMT3B	ENST00000328111.6	c.-6-1013C>T		intron_variant		1	NM_006892.4	ENSP00000328547	A2

Frequencies

GnomAD3 genomes AF: 0.0721 AC: 10975 AN: 152180 Hom.: 1255 Cov.: 33

Gnomad AFR AF: 0.243

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0326

Gnomad ASJ AF: 0.0124

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00393

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0665

Gnomad NFE AF: 0.00291

Gnomad OTH AF: 0.0664

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0722 AC: 10992 AN: 152298 Hom.: 1255 Cov.: 33 AF XY: 0.0703 AC XY: 5237 AN XY: 74494

Gnomad4 AFR AF: 0.243

Gnomad4 AMR AF: 0.0325

Gnomad4 ASJ AF: 0.0124

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00310

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00291

Gnomad4 OTH AF: 0.0658

Alfa AF: 0.0571 Hom.: 80

Bravo AF: 0.0829

Asia WGS AF: 0.0170 AC: 61 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	1.0
DANN	Benign	0.56

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

Other links and lift over

dbSNP: rs10485500; hg19: chr20-31367111;