Variant chr21-44259456-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_175867.3(DNMT3L):c.325G>A(p.Gly109Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000155 in 1,613,480 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

DNMT3L
NM_175867.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.61

Variant links:

Genes affected

DNMT3L (HGNC:2980): (DNA methyltransferase 3 like) 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 nuclear protein with similarity to DNA methyltransferases, but is not thought to function as a DNA methyltransferase as it does not contain the amino acid residues necessary for methyltransferase activity. However, it does stimulate de novo methylation by DNA cytosine methyltransferase 3 alpha and is thought to be required for the establishment of maternal genomic imprints. This protein also mediates transcriptional repression through interaction with histone deacetylase 1. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2012]

DNMT3L links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNMT3L	NM_175867.3 linkuse as main transcript	c.325G>A	p.Gly109Arg	missense_variant	5/12	ENST00000628202.3	NP_787063.1
DNMT3L	NM_013369.4 linkuse as main transcript	c.325G>A	p.Gly109Arg	missense_variant	5/12		NP_037501.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNMT3L	ENST00000628202.3 linkuse as main transcript	c.325G>A	p.Gly109Arg	missense_variant	5/12	1	NM_175867.3	ENSP00000486001	A2	Q9UJW3-1
DNMT3L	ENST00000270172.7 linkuse as main transcript	c.325G>A	p.Gly109Arg	missense_variant	5/12	1		ENSP00000270172	P4	Q9UJW3-2
DNMT3L	ENST00000431166.1 linkuse as main transcript	c.280G>A	p.Gly94Arg	missense_variant	4/9	5		ENSP00000400242

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000480

GnomAD3 exomes

AF:

0.0000200

AC:

AN:

250482

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135740

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

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:

0.0000266

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1461298

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

726922

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000894

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:

0.0000117

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74342

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

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:

0.000480

Alfa

AF:

0.0000620

Hom.:

Bravo

AF:

0.0000756

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 15, 2024

The c.325G>A (p.G109R) alteration is located in exon 5 (coding exon 4) of the DNMT3L gene. This alteration results from a G to A substitution at nucleotide position 325, causing the glycine (G) at amino acid position 109 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Benign

-0.0065

BayesDel_noAF

Uncertain

-0.070

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.70

.;D;.

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.76

T;T;T

M_CAP

Uncertain

0.088

MetaRNN

Uncertain

0.46

T;T;T

MetaSVM

Pathogenic

1.0

MutationAssessor

Benign

1.2

L;L;.

MutationTaster

Benign

0.87

D;D

PrimateAI

Benign

0.45

PROVEAN

Benign

-2.3

N;.;N

REVEL

Uncertain

0.42

Sift

Uncertain

0.025

D;.;D

Sift4G

Benign

0.13

T;T;T

Polyphen

0.99

D;D;.

Vest4

0.46

MutPred

0.48

Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);.;

MVP

0.97

MPC

0.21

ClinPred

0.77

GERP RS

4.3

Varity_R

0.25

gMVP

0.62

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over