rs77558739

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.759C>T​(p.Pro253Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00129 in 1,613,710 control chromosomes in the GnomAD database, including 23 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0070 ( 12 hom., cov: 32)
Exomes 𝑓: 0.00069 ( 11 hom. )

Consequence

DNMT3A
NM_022552.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -4.84

Publications

4 publications found
Variant links:
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: Illumina, Ambry Genetics, ClinGen, G2P, Orphanet, Labcorp Genetics (formerly Invitae)
  • Heyn-Sproul-Jackson syndrome
    Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, ClinGen, G2P, Labcorp Genetics (formerly Invitae)

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=-0.75).
BP6
Variant 2-25248133-G-A is Benign according to our data. Variant chr2-25248133-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 434955.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-4.84 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00702 (1070/152320) while in subpopulation AFR AF = 0.0246 (1024/41562). AF 95% confidence interval is 0.0234. There are 12 homozygotes in GnomAd4. There are 508 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 1070 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNMT3ANM_022552.5 linkc.759C>T p.Pro253Pro synonymous_variant Exon 7 of 23 ENST00000321117.10 NP_072046.2 Q9Y6K1-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNMT3AENST00000321117.10 linkc.759C>T p.Pro253Pro synonymous_variant Exon 7 of 23 1 NM_022552.5 ENSP00000324375.5 Q9Y6K1-1

Frequencies

GnomAD3 genomes
AF:
0.00700
AC:
1066
AN:
152202
Hom.:
12
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0246
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00478
GnomAD2 exomes
AF:
0.00180
AC:
450
AN:
249342
AF XY:
0.00133
show subpopulations
Gnomad AFR exome
AF:
0.0246
Gnomad AMR exome
AF:
0.00101
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000626
Gnomad OTH exome
AF:
0.000818
GnomAD4 exome
AF:
0.000691
AC:
1010
AN:
1461390
Hom.:
11
Cov.:
32
AF XY:
0.000587
AC XY:
427
AN XY:
726976
show subpopulations
African (AFR)
AF:
0.0239
AC:
800
AN:
33464
American (AMR)
AF:
0.00116
AC:
52
AN:
44684
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26114
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39694
South Asian (SAS)
AF:
0.000104
AC:
9
AN:
86224
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53350
Middle Eastern (MID)
AF:
0.000714
AC:
4
AN:
5606
European-Non Finnish (NFE)
AF:
0.0000396
AC:
44
AN:
1111908
Other (OTH)
AF:
0.00166
AC:
100
AN:
60346
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
59
119
178
238
297
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.00702
AC:
1070
AN:
152320
Hom.:
12
Cov.:
32
AF XY:
0.00682
AC XY:
508
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.0246
AC:
1024
AN:
41562
American (AMR)
AF:
0.00196
AC:
30
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.000414
AC:
2
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68032
Other (OTH)
AF:
0.00473
AC:
10
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
53
105
158
210
263
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00359
Hom.:
4
Bravo
AF:
0.00776
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000237

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Apr 24, 2017
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

DNMT3A-related disorder Benign:1
May 26, 2021
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Inborn genetic diseases Benign:1
Oct 02, 2024
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. -

Tatton-Brown-Rahman overgrowth syndrome Benign:1
Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Mar 12, 2021
GeneDx
Significance:Likely 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
-0.75
CADD
Benign
0.91
DANN
Benign
0.67
PhyloP100
-4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=98/2
polymorphism

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

Other links and lift over

dbSNP: rs77558739; hg19: chr2-25471002; COSMIC: COSV99259828; COSMIC: COSV99259828; API