2-25247704-G-C

Position:

• chr2-25247704-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_022552.5(DNMT3A):​c.901C>G​(p.Arg301Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DNMT3A NM_022552.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.81

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM1: In a region_of_interest Interaction with DNMT1 and DNMT3B (size 204) in uniprot entity DNM3A_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_022552.5
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.776

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNMT3A	NM_022552.5	c.901C>G	p.Arg301Gly	missense_variant	8/23	ENST00000321117.10	NP_072046.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNMT3A	ENST00000321117.10	c.901C>G	p.Arg301Gly	missense_variant	8/23	1	NM_022552.5	ENSP00000324375	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.16
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.74	D;.;D;T
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.80	.;T;T;T
M_CAP	Uncertain	0.13	D
MetaRNN	Pathogenic	0.78	D;D;D;D
MetaSVM	Uncertain	-0.080	T
MutationAssessor	Benign	1.6	L;.;L;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.90	D
PROVEAN	Uncertain	-3.3	D;D;D;D
REVEL	Pathogenic	0.66
Sift	Benign	0.036	D;T;D;T
Sift4G	Uncertain	0.010	D;D;D;D
Polyphen		0.96	D;.;D;.
Vest4		0.83
MutPred		0.52		Loss of solvent accessibility (P = 0.0159);.;Loss of solvent accessibility (P = 0.0159);.;
MVP		0.69
MPC		2.3
ClinPred		0.97	D
GERP RS		5.0
Varity_R		0.74
gMVP		0.89

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.20		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.20		Position offset: 45

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-25470573;