rs148851677

Variant names:

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBS1BS2

The NM_004562.3(PRKN):c.101A>G(p.Gln34Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00155 in 1,612,808 control chromosomes in the GnomAD database, including 32 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0033 ( 4 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 28 hom. )

Consequence

PRKN
NM_004562.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 2.70

Publications

20 publications found

Variant links:

Genes affected

PRKN (HGNC:8607): (parkin RBR E3 ubiquitin protein ligase) The precise function of this gene is unknown; however, the encoded protein is a component of a multiprotein E3 ubiquitin ligase complex that mediates the targeting of substrate proteins for proteasomal degradation. Mutations in this gene are known to cause Parkinson disease and autosomal recessive juvenile Parkinson disease. Alternative splicing of this gene produces multiple transcript variants encoding distinct isoforms. Additional splice variants of this gene have been described but currently lack transcript support. [provided by RefSeq, Jul 2008]

PRKN Gene-Disease associations (from GenCC):

autosomal recessive juvenile Parkinson disease 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Genomics England PanelApp
Parkinson disease
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
young-onset Parkinson disease
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PRKN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 4 uncertain in NM_004562.3

BP4

Computational evidence support a benign effect (MetaRNN=0.011427194).

BP6

Variant 6-162443380-T-C is Benign according to our data. Variant chr6-162443380-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 468584.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00326 (496/152152) while in subpopulation SAS AF = 0.0162 (78/4828). AF 95% confidence interval is 0.0133. There are 4 homozygotes in GnomAd4. There are 252 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKN	NM_004562.3 link	c.101A>G	p.Gln34Arg	missense_variant	Exon 2 of 12	ENST00000366898.6	NP_004553.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRKN	ENST00000366898.6 link	c.101A>G	p.Gln34Arg	missense_variant	Exon 2 of 12	1	NM_004562.3	ENSP00000355865.1

Frequencies

GnomAD3 genomes

AF:

0.00324

AC:

493

AN:

152034

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00961

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

Gnomad SAS

AF:

0.0159

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00334

GnomAD2 exomes

AF:

0.00292

AC:

733

AN:

251368

AF XY:

0.00334

show subpopulations

Gnomad AFR exome

AF:

0.00978

Gnomad AMR exome

AF:

0.000636

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00179

GnomAD4 exome

AF:

0.00137

AC:

2007

AN:

1460656

Hom.:

Cov.:

AF XY:

0.00171

AC XY:

1243

AN XY:

726604

show subpopulations

African (AFR)

AF:

0.0109

AC:

365

AN:

33472

American (AMR)

AF:

0.000716

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.000151

AC:

AN:

39698

South Asian (SAS)

AF:

0.0166

AC:

1432

AN:

86244

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53358

Middle Eastern (MID)

AF:

0.000895

AC:

AN:

5588

European-Non Finnish (NFE)

AF:

0.0000288

AC:

AN:

1111096

Other (OTH)

AF:

0.00224

AC:

135

AN:

60342

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

126

252

379

505

631

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

128

160

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00326

AC:

496

AN:

152152

Hom.:

Cov.:

AF XY:

0.00339

AC XY:

252

AN XY:

74396

show subpopulations

African (AFR)

AF:

0.00963

AC:

400

AN:

41524

American (AMR)

AF:

0.000654

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000194

AC:

AN:

5154

South Asian (SAS)

AF:

0.0162

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67964

Other (OTH)

AF:

0.00331

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

108

135

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00133

Hom.:

Bravo

AF:

0.00323

ESP6500AA

AF:

0.00726

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00343

AC:

416

Asia WGS

AF:

0.00837

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Jul 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

PRKN: BS1, BS2

Nov 05, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

Autosomal recessive juvenile Parkinson disease 2

Benign:2

Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:research

The heterozygous p.Gln34Arg variant in PARK2 has been identified in at least 5 individuals with Parkinson disease (PMID: 16793319, 22766139), but also has been identified in >1% of South Asian chromosomes and 7 homozygotes by ExAC (http://gnomad.broadinstitute.org/). In vitro functional studies provide some evidence that the p.Gln34Arg variant may not impact protein structure (PMID: 21348451). However, these types of assays may not accurately represent biological function. In summary, although additional studies are required to fully establish its clinical significance, this variant meets criteria to be classified as likely benign for Parkinson disease.

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign.

not specified

Benign:1

Nov 12, 2020

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

T;.;.;T

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.72

T;T;T;T

MetaRNN

Benign

0.011

T;T;T;T

MetaSVM

Uncertain

0.13

MutationAssessor

Benign

0.0

.;.;.;.

PhyloP100

2.7

PrimateAI

Benign

0.45

PROVEAN

Benign

-1.9

N;N;N;N

REVEL

Uncertain

0.59

Sift

Uncertain

0.026

D;D;T;D

Sift4G

Benign

0.066

T;T;T;T

Vest4

0.36

ClinPred

0.014

GERP RS

5.6

Varity_R

0.76

gMVP

0.67

Mutation Taster

=210/90

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over