rs150999369

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001130823.3(DNMT1):c.731G>A(p.Gly244Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000533 in 1,613,992 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00064 ( 1 hom., cov: 31)

Exomes 𝑓: 0.00052 ( 5 hom. )

Consequence

DNMT1
NM_001130823.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.842

Publications

4 publications found

Variant links:

Genes affected

DNMT1 (HGNC:2976): (DNA methyltransferase 1) This gene encodes an enzyme that transfers methyl groups to cytosine nucleotides of genomic DNA. This protein is the major enzyme responsible for maintaining methylation patterns following DNA replication and shows a preference for hemi-methylated DNA. Methylation of DNA is an important component of mammalian epigenetic gene regulation. Aberrant methylation patterns are found in human tumors and associated with developmental abnormalities. Variation in this gene has been associated with cerebellar ataxia, deafness, and narcolepsy, and neuropathy, hereditary sensory, type IE. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

DNMT1 Gene-Disease associations (from GenCC):

autosomal dominant cerebellar ataxia, deafness and narcolepsy
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, PanelApp Australia, Orphanet, Labcorp Genetics (formerly Invitae)
hereditary sensory neuropathy-deafness-dementia syndrome
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Orphanet

DNMT1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0072378516).

BP6

Variant 19-10173127-C-T is Benign according to our data. Variant chr19-10173127-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 234309.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 97 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNMT1	NM_001130823.3 link	c.731G>A	p.Gly244Glu	missense_variant	Exon 9 of 41	ENST00000359526.9	NP_001124295.1	P26358-2I6L9H2
DNMT1	NM_001318730.2 link	c.683G>A	p.Gly228Glu	missense_variant	Exon 8 of 40		NP_001305659.1	P26358Q59FP7I6L9H2
DNMT1	NM_001379.4 link	c.683G>A	p.Gly228Glu	missense_variant	Exon 8 of 40		NP_001370.1	P26358-1I6L9H2
DNMT1	NM_001318731.2 link	c.368G>A	p.Gly123Glu	missense_variant	Exon 9 of 41		NP_001305660.1	P26358I6L9H2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNMT1	ENST00000359526.9 link	c.731G>A	p.Gly244Glu	missense_variant	Exon 9 of 41	1	NM_001130823.3	ENSP00000352516.3		P26358-2

Frequencies

GnomAD3 genomes

AF:

0.000638

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000459

Gnomad ASJ

AF:

0.0210

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.00113

AC:

284

AN:

251452

AF XY:

0.00101

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00191

Gnomad ASJ exome

AF:

0.0177

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000246

Gnomad OTH exome

AF:

0.00179

GnomAD4 exome

AF:

0.000522

AC:

763

AN:

1461886

Hom.:

Cov.:

AF XY:

0.000540

AC XY:

393

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33480

American (AMR)

AF:

0.00181

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.0171

AC:

448

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000115

AC:

128

AN:

1112008

Other (OTH)

AF:

0.00169

AC:

102

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

140

187

234

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000638

AC:

AN:

152106

Hom.:

Cov.:

AF XY:

0.000619

AC XY:

AN XY:

74300

show subpopulations

African (AFR)

AF:

0.000193

AC:

AN:

41410

American (AMR)

AF:

0.000459

AC:

AN:

15240

Ashkenazi Jewish (ASJ)

AF:

0.0210

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

68028

Other (OTH)

AF:

0.00144

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000991

Hom.:

Bravo

AF:

0.000759

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00163

AC:

ExAC

AF:

0.000923

AC:

112

EpiCase

AF:

0.000491

EpiControl

AF:

0.000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Oct 09, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

DNMT1: BS1, BS2 -

Jun 25, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary sensory neuropathy-deafness-dementia syndrome

Benign:2

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Jan 24, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary sensory neuropathy-deafness-dementia syndrome;C3807295:Autosomal dominant cerebellar ataxia, deafness and narcolepsy

Benign:1

Dec 30, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Benign:1

Sep 30, 2019

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Benign

0.85

DEOGEN2

Benign

0.40

T;.;.

Eigen

Benign

-0.42

Eigen_PC

Benign

-0.52

FATHMM_MKL

Benign

0.22

LIST_S2

Benign

0.53

T;T;T

M_CAP

Benign

0.0073

MetaRNN

Benign

0.0072

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.81

L;.;.

PhyloP100

0.84

PrimateAI

Benign

0.40

PROVEAN

Benign

0.46

N;N;.

REVEL

Benign

0.032

Sift

Uncertain

0.0050

D;D;.

Sift4G

Benign

0.91

T;T;T

Polyphen

0.79

P;B;.

Vest4

0.25

MVP

0.37

MPC

0.53

ClinPred

0.026

GERP RS

0.79

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

3.7

Varity_R

0.073

gMVP

0.16

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over