rs202058239

Variant names:

• chr19-10154416-C-T
• rs202058239
• NM_001130823.3:c.1896G>A

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_Strong BP6_Very_Strong BP7 BS2

The NM_001130823.3(DNMT1):​c.1896G>A​(p.Thr632Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000176 in 1,614,104 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.00015 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00018 (0 hom.)
• Consequence: DNMT1 NM_001130823.3 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -1.68
• Publications: 3 publications found

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: Unknown, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)
• hereditary sensory neuropathy-deafness-dementia syndrome

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -17 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.52).
• BP6: Variant 19-10154416-C-T is Benign according to our data. Variant chr19-10154416-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 384833.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-1.68 with no splicing effect.
• BS2: High AC in GnomAd4 at 23 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001130823.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNMT1	NM_001130823.3	MANE Select	c.1896G>A	p.Thr632Thr	synonymous	Exon 22 of 41	NP_001124295.1	P26358-2
	DNMT1	NM_001318730.2		c.1848G>A	p.Thr616Thr	synonymous	Exon 21 of 40	NP_001305659.1
	DNMT1	NM_001379.4		c.1848G>A	p.Thr616Thr	synonymous	Exon 21 of 40	NP_001370.1	P26358-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNMT1	ENST00000359526.9	TSL:1 MANE Select	c.1896G>A	p.Thr632Thr	synonymous	Exon 22 of 41	ENSP00000352516.3	P26358-2
	DNMT1	ENST00000340748.8	TSL:1	c.1848G>A	p.Thr616Thr	synonymous	Exon 21 of 40	ENSP00000345739.3	P26358-1
	DNMT1	ENST00000592705.5	TSL:1	n.*1586G>A		non_coding_transcript_exon	Exon 22 of 41	ENSP00000466657.1	K7EMU8

Frequencies

GnomAD3 genomes AF: 0.000151 AC: 23 AN: 152210 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00519

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000942

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000262 AC: 66 AN: 251446 AF XY: 0.000287

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00476

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000967

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.000179 AC: 261 AN: 1461894 Hom.: 0 Cov.: 31 AF XY: 0.000183 AC XY: 133 AN XY: 727248

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.000134 AC: 6 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00589 AC: 154 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000348 AC: 3 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000486 AC: 54 AN: 1112012

Other (OTH) AF: 0.000729 AC: 44 AN: 60396

GnomAD4 genome AF: 0.000151 AC: 23 AN: 152210 Hom.: 0 Cov.: 32 AF XY: 0.000175 AC XY: 13 AN XY: 74348

African (AFR) AF: 0.00 AC: 0 AN: 41452

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00519 AC: 18 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.0000942 AC: 1 AN: 10616

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000588 AC: 4 AN: 68050

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.000366 Hom.: 0

Bravo AF: 0.000200

EpiCase AF: 0.000164

EpiControl AF: 0.000119

ClinVar

ClinVar submissions

Significance: Benign/Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	2	Hereditary sensory neuropathy-deafness-dementia syndrome (2)
-	-	2	not provided (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.52
CADD	Benign	1.1
DANN	Benign	0.56
PhyloP100		-1.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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

Other links and lift over

dbSNP: rs202058239; hg19: chr19-10265092; COSMIC: COSV61578962; COSMIC: COSV61578962;