chr2-218344505-G-A

Position:

chr2-218344505-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_015488.5(PNKD):c.919G>A(p.Glu307Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00052 in 1,592,466 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00052 ( 1 hom. )

Consequence

PNKD
NM_015488.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.45

Variant links:

Genes affected

PNKD (HGNC:9153): (PNKD metallo-beta-lactamase domain containing) This gene is thought to play a role in the regulation of myofibrillogenesis. Mutations in this gene have been associated with the movement disorder paroxysmal non-kinesigenic dyskinesia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

PNKD links:

PNKD (HGNC:):

PNKD links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.050423443).

BP6

Variant 2-218344505-G-A is Benign according to our data. Variant chr2-218344505-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 536504.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PNKD	NM_015488.5 linkuse as main transcript	c.919G>A	p.Glu307Lys	missense_variant	9/10	ENST00000273077.9	NP_056303.3	Q8N490-1A0A024R415

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PNKD	ENST00000273077.9 linkuse as main transcript	c.919G>A	p.Glu307Lys	missense_variant	9/10	1	NM_015488.5	ENSP00000273077.4		Q8N490-1

Frequencies

GnomAD3 genomes

AF:

0.000473

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000265

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000706

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000440

AC:

AN:

215808

Hom.:

AF XY:

0.000422

AC XY:

AN XY:

116012

show subpopulations

Gnomad AFR exome

AF:

0.000153

Gnomad AMR exome

AF:

0.0000329

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000482

Gnomad FIN exome

AF:

0.00139

Gnomad NFE exome

AF:

0.000516

Gnomad OTH exome

AF:

0.000543

GnomAD4 exome

AF:

0.000525

AC:

756

AN:

1440304

Hom.:

Cov.:

AF XY:

0.000536

AC XY:

383

AN XY:

714304

show subpopulations

Gnomad4 AFR exome

AF:

0.000543

Gnomad4 AMR exome

AF:

0.0000972

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000494

Gnomad4 FIN exome

AF:

0.00150

Gnomad4 NFE exome

AF:

0.000528

Gnomad4 OTH exome

AF:

0.000570

GnomAD4 genome

AF:

0.000473

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.000471

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.000265

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.000942

Gnomad4 NFE

AF:

0.000706

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000513

Hom.:

Bravo

AF:

0.000317

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000582

AC:

ExAC

AF:

0.000429

AC:

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 01, 2019	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Feb 01, 2023	PNKD: BS1 -

Paroxysmal nonkinesigenic dyskinesia 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Paroxysmal nonkinesigenic dyskinesia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

PNKD-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 05, 2019

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

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.20

T;.;.

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.88

D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.050

T;T;T

MetaSVM

Uncertain

0.59

MutationAssessor

Benign

1.6

L;.;.

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-1.7

N;N;N

REVEL

Uncertain

0.43

Sift

Benign

0.16

T;T;T

Sift4G

Benign

0.84

T;T;T

Polyphen

0.85

P;P;.

Vest4

0.44

MVP

0.83

MPC

0.21

ClinPred

0.030

GERP RS

5.1

Varity_R

0.15

gMVP

0.47

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