Genetic Variant PRKD2:p.Arg874Cys (chr19-46674540-G-A) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_016457.5(PRKD2):c.2620C>T(p.Arg874Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000185 in 1,460,430 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

PRKD2
NM_016457.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.03

Variant links:

Genes affected

PRKD2 (HGNC:17293): (protein kinase D2) The protein encoded by this gene belongs to the protein kinase D (PKD) family of serine/threonine protein kinases. This kinase can be activated by phorbol esters as well as by gastrin via the cholecystokinin B receptor (CCKBR) in gastric cancer cells. It can bind to diacylglycerol (DAG) in the trans-Golgi network (TGN) and may regulate basolateral membrane protein exit from TGN. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

PRKD2 links:

DACT3-AS1 (HGNC:44120): (DACT3 antisense RNA 1)

DACT3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.752

BS2

High AC in GnomAdExome4 at 27 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKD2	NM_016457.5 link	c.2620C>T	p.Arg874Cys	missense_variant	Exon 18 of 18	ENST00000291281.9	NP_057541.2	Q9BZL6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRKD2	ENST00000291281.9 link	c.2620C>T	p.Arg874Cys	missense_variant	Exon 18 of 18	1	NM_016457.5	ENSP00000291281.3		Q9BZL6-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000806

AC:

AN:

248076

Hom.:

AF XY:

0.00000744

AC XY:

AN XY:

134386

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000891

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1460430

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

726460

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000234

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 17, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2620C>T (p.R874C) alteration is located in exon 18 (coding exon 18) of the PRKD2 gene. This alteration results from a C to T substitution at nucleotide position 2620, causing the arginine (R) at amino acid position 874 to be replaced by a cysteine (C). 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

Uncertain

0.47

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

0.050

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.61

.;D;D;.;.

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.87

LIST_S2

Uncertain

0.95

.;.;D;D;D

M_CAP

Pathogenic

0.33

MetaRNN

Pathogenic

0.75

D;D;D;D;D

MetaSVM

Uncertain

-0.19

MutationAssessor

Uncertain

2.4

.;M;M;.;.

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-2.9

.;D;D;.;.

REVEL

Uncertain

0.57

Sift

Pathogenic

0.0

.;D;D;.;.

Sift4G

Pathogenic

0.0

D;D;D;D;D

Polyphen

1.0

.;D;D;.;.

Vest4

0.80

MutPred

0.56

.;Gain of catalytic residue at S876 (P = 0.0799);Gain of catalytic residue at S876 (P = 0.0799);.;.;

MVP

0.71

MPC

1.1

ClinPred

0.99

GERP RS

4.2

Varity_R

0.11

gMVP

0.75

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

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