12-40252984-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_198578.4(LRRK2):c.1256C>T(p.Ala419Val) variant causes a missense change. The variant allele was found at a frequency of 0.00043 in 1,612,656 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A419A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00039 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00043 ( 5 hom. )

Consequence

LRRK2
NM_198578.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6O:1

Conservation

PhyloP100: 4.15

Publications

60 publications found

Variant links:

Genes affected

LRRK2 (HGNC:18618): (leucine rich repeat kinase 2) This gene is a member of the leucine-rich repeat kinase family and encodes a protein with an ankryin repeat region, a leucine-rich repeat (LRR) domain, a kinase domain, a DFG-like motif, a RAS domain, a GTPase domain, a MLK-like domain, and a WD40 domain. The protein is present largely in the cytoplasm but also associates with the mitochondrial outer membrane. Mutations in this gene have been associated with Parkinson disease-8. [provided by RefSeq, Jul 2008]

LRRK2 Gene-Disease associations (from GenCC):

autosomal dominant Parkinson disease 8
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Genomics England PanelApp
Parkinson disease
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
hereditary late onset Parkinson disease
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

LRRK2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008399695).

BP6

Variant 12-40252984-C-T is Benign according to our data. Variant chr12-40252984-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 39131.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000394 (60/152198) while in subpopulation EAS AF = 0.00889 (46/5176). AF 95% confidence interval is 0.00685. There are 1 homozygotes in GnomAd4. There are 36 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 60 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRRK2	NM_198578.4 link	c.1256C>T	p.Ala419Val	missense_variant	Exon 11 of 51	ENST00000298910.12	NP_940980.4	Q5S007Q17RV3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRRK2	ENST00000298910.12 link	c.1256C>T	p.Ala419Val	missense_variant	Exon 11 of 51	1	NM_198578.4	ENSP00000298910.7		Q5S007

Frequencies

GnomAD3 genomes

AF:

0.000395

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00887

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000486

AC:

122

AN:

250846

AF XY:

0.000465

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00462

Gnomad FIN exome

AF:

0.000139

Gnomad NFE exome

AF:

0.000212

Gnomad OTH exome

AF:

0.000491

GnomAD4 exome

AF:

0.000434

AC:

634

AN:

1460458

Hom.:

Cov.:

AF XY:

0.000427

AC XY:

310

AN XY:

726610

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33434

American (AMR)

AF:

0.0000224

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26090

East Asian (EAS)

AF:

0.0105

AC:

414

AN:

39576

South Asian (SAS)

AF:

0.000197

AC:

AN:

86232

European-Finnish (FIN)

AF:

0.000169

AC:

AN:

53380

Middle Eastern (MID)

AF:

0.000869

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.000150

AC:

167

AN:

1110980

Other (OTH)

AF:

0.000348

AC:

AN:

60314

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

127

159

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.000394

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.000484

AC XY:

AN XY:

74404

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41538

American (AMR)

AF:

0.000196

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00889

AC:

AN:

5176

South Asian (SAS)

AF:

0.000207

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10586

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.000475

Hom.:

Bravo

AF:

0.000510

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000511

AC:

Asia WGS

AF:

0.00375

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Autosomal dominant Parkinson disease 8

Benign:3Other:1

GeneReviews

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

- -

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Sep 30, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Dec 01, 2020

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 24470158, 21885347, 23913756, 22807999, 24082139, 22575234, 22418733, 26234753, 30049590, 31182772, 31589614) -

Aug 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

LRRK2: BS1 -

LRRK2-related disorder

Benign:1

Jan 25, 2024

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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

0.33

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.20

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.047

T;T

Eigen

Uncertain

0.26

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.86

D;D

M_CAP

Benign

0.046

MetaRNN

Benign

0.0084

T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

2.0

.;M

PhyloP100

4.2

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.3

N;N

REVEL

Benign

0.17

Sift

Uncertain

0.027

D;D

Sift4G

Benign

0.092

T;D

Polyphen

0.94

P;D

Vest4

0.54

MVP

0.78

MPC

0.38

ClinPred

0.052

GERP RS

5.1

Varity_R

0.14

gMVP

0.31

Mutation Taster

=81/19

polymorphism

(source)

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

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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