1-13778734-T-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001393986.1(PRDM2):c.939T>A(p.Asp313Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PRDM2 NM_001393986.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.347

Genes affected

PRDM2 (HGNC:9347): (PR/SET domain 2) This tumor suppressor gene is a member of a nuclear histone/protein methyltransferase superfamily. It encodes a zinc finger protein that can bind to retinoblastoma protein, estrogen receptor, and the TPA-responsive element (MTE) of the heme-oxygenase-1 gene. Although the functions of this protein have not been fully characterized, it may (1) play a role in transcriptional regulation during neuronal differentiation and pathogenesis of retinoblastoma, (2) act as a transcriptional activator of the heme-oxygenase-1 gene, and (3) be a specific effector of estrogen action. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.031758487).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PRDM2	NM_001393986.1	c.939T>A	p.Asp313Glu	missense_variant	8/10	ENST00000311066.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRDM2	ENST00000311066.10	c.939T>A	p.Asp313Glu	missense_variant	8/10	5	NM_001393986.1	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 60

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 24, 2023

The c.939T>A (p.D313E) alteration is located in exon 8 (coding exon 7) of the PRDM2 gene. This alteration results from a T to A substitution at nucleotide position 939, causing the aspartic acid (D) at amino acid position 313 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.090
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
Cadd	Benign	1.4
Dann	Benign	0.81
Eigen	Benign	-0.91
Eigen_PC	Benign	-0.81
FATHMM_MKL	Benign	0.21	N
LIST_S2	Benign	0.65	T;T;.;T
M_CAP	Benign	0.0028	T
MetaRNN	Benign	0.032	T;T;T;T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.46	N;N;.;.
MutationTaster	Benign	1.0	D;D;D;N;N;N;N
PrimateAI	Benign	0.32	T
PROVEAN	Benign	0.030	N;N;N;N
REVEL	Benign	0.065
Sift	Benign	0.86	T;T;T;T
Sift4G	Benign	1.0	T;T;T;T
Polyphen		0.18	B;B;.;.
Vest4		0.11
MutPred		0.19		Gain of loop (P = 0.0435);Gain of loop (P = 0.0435);.;.;
MVP		0.32
MPC		0.20
ClinPred		0.041	T
GERP RS		-1.7
Varity_R		0.016
gMVP		0.030

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-14105229;