19-10133690-C-T

Position:

chr19-10133690-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 1P and 9B. PP2BP4_StrongBP6BS2

The NM_001130823.3(DNMT1):c.4876G>A(p.Glu1626Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000103 in 1,595,404 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 1 hom. )

Consequence

DNMT1
NM_001130823.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 0.139

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 links:

DNMT1 (HGNC:):

DNMT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DNMT1. . Gene score misZ 4.9903 (greater than the threshold 3.09). Trascript score misZ 7.3302 (greater than threshold 3.09). GenCC has associacion of gene with hereditary sensory neuropathy-deafness-dementia syndrome, autosomal dominant cerebellar ataxia, deafness and narcolepsy.

BP4

Computational evidence support a benign effect (MetaRNN=0.0058839917).

BP6

Variant 19-10133690-C-T is Benign according to our data. Variant chr19-10133690-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 246060.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Likely_benign=3, Uncertain_significance=1}.

BS2

High AC in GnomAd4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNMT1	NM_001130823.3 linkuse as main transcript	c.4876G>A	p.Glu1626Lys	missense_variant	41/41	ENST00000359526.9	NP_001124295.1	P26358-2I6L9H2
DNMT1	NM_001318730.2 linkuse as main transcript	c.4837G>A	p.Glu1613Lys	missense_variant	40/40		NP_001305659.1	P26358Q59FP7I6L9H2
DNMT1	NM_001379.4 linkuse as main transcript	c.4828G>A	p.Glu1610Lys	missense_variant	40/40		NP_001370.1	P26358-1I6L9H2
DNMT1	NM_001318731.2 linkuse as main transcript	c.4513G>A	p.Glu1505Lys	missense_variant	41/41		NP_001305660.1	P26358I6L9H2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNMT1	ENST00000359526.9 linkuse as main transcript	c.4876G>A	p.Glu1626Lys	missense_variant	41/41	1	NM_001130823.3	ENSP00000352516.3		P26358-2

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00432

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:

0.00

GnomAD3 exomes

AF:

0.000222

AC:

AN:

216180

Hom.:

AF XY:

0.000240

AC XY:

AN XY:

116606

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00447

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000536

Gnomad OTH exome

AF:

0.000182

GnomAD4 exome

AF:

0.000103

AC:

149

AN:

1443226

Hom.:

Cov.:

AF XY:

0.000103

AC XY:

AN XY:

716068

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00416

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000236

Gnomad4 OTH exome

AF:

0.000268

GnomAD4 genome

AF:

0.000105

AC:

AN:

152178

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00432

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000495

Hom.:

Bravo

AF:

0.0000982

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000990

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Feb 02, 2018	The DNMT1 c.4876G>A; p.Glu1626Lys variant (rs201774098), to our knowledge, is not reported in the medical literature, gene specific variation databases, nor has it been previously identified by our laboratory. This variant is listed in the genome Aggregation Database (gnomAD) with an overall population frequency of 0.02% (identified on 45 out of 211,492 chromosomes) and is classified as a variant of uncertain significance in ClinVar (ID: 246060). The glutamic acid at position 1626 is moderately conserved, considering 12 species and computational analyses of the effects of the p.Glu1626Lys variant on protein structure and function do not predict a deleterious effect (SIFT: tolerated, MutationTaster: polymorphism, PolyPhen-2: benign). Based on the available information, the clinical significance of the p.Glu1626Lys variant cannot be determined with certainty. -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 22, 2020	- -

Hereditary sensory neuropathy-deafness-dementia syndrome

Benign:2

Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	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. -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jun 24, 2023	- -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 15, 2020

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

0.079

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.37

T;.

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.42

LIST_S2

Benign

0.73

T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.0059

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.1

L;.

MutationTaster

Benign

0.52

N;N;N

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.20

N;N

REVEL

Benign

0.032

Sift

Benign

0.43

T;T

Sift4G

Benign

0.32

T;T

Polyphen

0.018

B;B

Vest4

0.20

MVP

0.33

MPC

1.1

ClinPred

0.052

GERP RS

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.046

gMVP

0.45

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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