dbSNP rs181757577: DNMT3A:p.Pro896Pro (chr2-25234330-T-C) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_022552.5(DNMT3A):c.2688A>G(p.Pro896Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000547 in 1,614,148 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00046 ( 6 hom. )

Consequence

DNMT3A
NM_022552.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -3.86

Publications

0 publications found

Variant links:

COSMIC-nc: COSV53069622

Genes affected

DNMT3A (HGNC:2978): (DNA methyltransferase 3 alpha) 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 DNA methyltransferase that is thought to function in de novo methylation, rather than maintenance methylation. The protein localizes to the cytoplasm and nucleus and its expression is developmentally regulated. [provided by RefSeq, Mar 2016]

DNMT3A Gene-Disease associations (from GenCC):

Tatton-Brown-Rahman overgrowth syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Illumina, Ambry Genetics, ClinGen, G2P, Labcorp Genetics (formerly Invitae)
Heyn-Sproul-Jackson syndrome
Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Ambry Genetics

DNMT3A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP6

Variant 2-25234330-T-C is Benign according to our data. Variant chr2-25234330-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 541937.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-3.86 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00141 (215/152348) while in subpopulation AMR AF = 0.0136 (208/15298). AF 95% confidence interval is 0.0121. There are 4 homozygotes in GnomAd4. There are 121 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 215 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022552.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DNMT3A	NM_022552.5	MANE Select	c.2688A>G	p.Pro896Pro	synonymous	Exon 23 of 23	NP_072046.2
DNMT3A	NM_175629.2		c.2688A>G	p.Pro896Pro	synonymous	Exon 23 of 23	NP_783328.1	Q9Y6K1-1
DNMT3A	NM_001320893.1		c.2232A>G	p.Pro744Pro	synonymous	Exon 18 of 18	NP_001307822.1	Q9Y6K1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DNMT3A	ENST00000321117.10	TSL:1 MANE Select	c.2688A>G	p.Pro896Pro	synonymous	Exon 23 of 23	ENSP00000324375.5	Q9Y6K1-1
DNMT3A	ENST00000264709.7	TSL:1	c.2688A>G	p.Pro896Pro	synonymous	Exon 23 of 23	ENSP00000264709.3	Q9Y6K1-1
DNMT3A	ENST00000380746.8	TSL:1	c.2121A>G	p.Pro707Pro	synonymous	Exon 19 of 19	ENSP00000370122.4	Q9Y6K1-2

Frequencies

GnomAD3 genomes

AF:

0.00137

AC:

209

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0132

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.00171

AC:

429

AN:

251362

AF XY:

0.00129

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0122

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000979

GnomAD4 exome

AF:

0.000457

AC:

668

AN:

1461800

Hom.:

Cov.:

AF XY:

0.000386

AC XY:

281

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33480

American (AMR)

AF:

0.0140

AC:

627

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1111972

Other (OTH)

AF:

0.000480

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

102

136

170

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:

0.00141

AC:

215

AN:

152348

Hom.:

Cov.:

AF XY:

0.00162

AC XY:

121

AN XY:

74498

show subpopulations

African (AFR)

AF:

0.000144

AC:

AN:

41576

American (AMR)

AF:

0.0136

AC:

208

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68038

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

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:

0.000164

Hom.:

Bravo

AF:

0.00151

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

DNMT3A-related disorder (1)

Inborn genetic diseases (1)

Tatton-Brown-Rahman overgrowth syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

3.2

(source)

DANN

Benign

0.52

PhyloP100

-3.9

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over