chr19-10134221-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2

The NM_001130823.3(DNMT1):c.4860C>T(p.Ala1620Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000107 in 1,614,226 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 1 hom. )

Consequence

DNMT1
NM_001130823.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.219

Publications

0 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 -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.43).

BP6

Variant 19-10134221-G-A is Benign according to our data. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-10134221-G-A is described in CliVar as Benign. Clinvar id is 539619.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.219 with no splicing effect.

BS2

High AC in GnomAd4 at 11 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNMT1	NM_001130823.3 link	c.4860C>T	p.Ala1620Ala	synonymous_variant	Exon 40 of 41	ENST00000359526.9	NP_001124295.1	P26358-2I6L9H2
DNMT1	NM_001318730.2 link	c.4821C>T	p.Ala1607Ala	synonymous_variant	Exon 39 of 40		NP_001305659.1	P26358Q59FP7I6L9H2
DNMT1	NM_001379.4 link	c.4812C>T	p.Ala1604Ala	synonymous_variant	Exon 39 of 40		NP_001370.1	P26358-1I6L9H2
DNMT1	NM_001318731.2 link	c.4497C>T	p.Ala1499Ala	synonymous_variant	Exon 40 of 41		NP_001305660.1	P26358I6L9H2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNMT1	ENST00000359526.9 link	c.4860C>T	p.Ala1620Ala	synonymous_variant	Exon 40 of 41	1	NM_001130823.3	ENSP00000352516.3		P26358-2

Frequencies

GnomAD3 genomes

AF:

0.0000722

AC:

AN:

152256

Hom.:

Cov.:

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:

0.00207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000235

AC:

AN:

251216

AF XY:

0.000331

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000111

AC:

162

AN:

1461852

Hom.:

Cov.:

AF XY:

0.000153

AC XY:

111

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00180

AC:

155

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112012

Other (OTH)

AF:

0.000116

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.451

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome 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

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152374

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74504

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41584

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00207

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68048

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.0000693

Hom.:

Bravo

AF:

0.0000189

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hereditary sensory neuropathy-deafness-dementia syndrome

Benign:2

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 12, 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. -

not provided

Benign:1

Feb 05, 2022

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.43

CADD

Benign

9.3

(source)

DANN

Benign

0.74

PhyloP100

0.22

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=100/0

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