Genetic Variant PDCD2:p.Arg136Lys (chr6-170583624-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002598.4(PDCD2):c.407G>A(p.Arg136Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000564 in 1,614,036 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00033 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

PDCD2
NM_002598.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.50

Variant links:

Genes affected

PDCD2 (HGNC:8762): (programmed cell death 2) This gene encodes a nuclear protein expressed in a variety of tissues. Expression of this gene has been shown to be repressed by B-cell CLL/lymphoma 6 (BCL6), a transcriptional repressor required for lymph node germinal center development, suggesting that BCL6 regulates apoptosis by its effects on this protein. Alternative splicing results in multiple transcript variants and pseudogenes have been identified on chromosomes 9 and 12. [provided by RefSeq, Dec 2010]

PDCD2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PDCD2	NM_002598.4 link	c.407G>A	p.Arg136Lys	missense_variant	Exon 2 of 6	ENST00000541970.6	NP_002589.2	Q16342-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PDCD2	ENST00000541970.6 link	c.407G>A	p.Arg136Lys	missense_variant	Exon 2 of 6	1	NM_002598.4	ENSP00000439467.1		Q16342-1

Frequencies

GnomAD3 genomes

AF:

0.000322

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00113

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

GnomAD3 exomes

AF:

0.0000557

AC:

AN:

251412

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135882

show subpopulations

Gnomad AFR exome

AF:

0.000800

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000280

AC:

AN:

1461796

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727200

show subpopulations

Gnomad4 AFR exome

AF:

0.000926

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000328

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74430

show subpopulations

Gnomad4 AFR

AF:

0.00116

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000813

Hom.:

Bravo

AF:

0.000302

ExAC

AF:

0.0000576

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 15, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.407G>A (p.R136K) alteration is located in exon 2 (coding exon 2) of the PDCD2 gene. This alteration results from a G to A substitution at nucleotide position 407, causing the arginine (R) at amino acid position 136 to be replaced by a lysine (K). 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

0.17

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.38

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

T;.;.;.;.;T;.

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.81

T;T;T;T;T;T;T

M_CAP

Benign

0.0030

MetaRNN

Benign

0.10

T;T;T;T;T;T;T

MetaSVM

Benign

-0.81

MutationAssessor

Benign

1.7

L;.;.;L;.;.;.

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-1.2

N;N;N;N;N;.;N

REVEL

Benign

0.13

Sift

Benign

0.28

T;T;T;T;T;.;T

Sift4G

Benign

0.41

T;T;T;T;T;T;T

Polyphen

0.23

B;.;D;.;.;.;.

Vest4

0.42

MVP

0.33

MPC

0.18

ClinPred

0.11

GERP RS

3.7

Varity_R

0.28

gMVP

0.38

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.43

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.43

Position offset: -1

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over