chr12-40240543-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_198578.4(LRRK2):c.632C>T(p.Ala211Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000937 in 1,612,120 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A211A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000092 ( 1 hom. )

Consequence

LRRK2
NM_198578.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2O:1

Conservation

PhyloP100: 1.76

Publications

15 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 -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.047001153).

BP6

Variant 12-40240543-C-T is Benign according to our data. Variant chr12-40240543-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 39223.

BS2

High AC in GnomAd4 at 17 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_198578.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRRK2	NM_198578.4	MANE Select	c.632C>T	p.Ala211Val	missense	Exon 6 of 51	NP_940980.4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
LRRK2	ENST00000298910.12	TSL:1 MANE Select	c.632C>T	p.Ala211Val	missense	Exon 6 of 51	ENSP00000298910.7
LRRK2	ENST00000680790.1		c.632C>T	p.Ala211Val	missense	Exon 6 of 49	ENSP00000505335.1
LRRK2	ENST00000343742.6	TSL:5	c.632C>T	p.Ala211Val	missense	Exon 6 of 27	ENSP00000341930.2

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152108

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000578

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.000172

AC:

AN:

250686

AF XY:

0.000133

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000326

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000291

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000918

AC:

134

AN:

1459892

Hom.:

Cov.:

AF XY:

0.0000950

AC XY:

AN XY:

726348

show subpopulations

African (AFR)

AF:

0.0000599

AC:

AN:

33410

American (AMR)

AF:

0.0000448

AC:

AN:

44608

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.000101

AC:

AN:

39590

South Asian (SAS)

AF:

0.00

AC:

AN:

86212

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.0000864

AC:

AN:

1110514

Other (OTH)

AF:

0.000497

AC:

AN:

60314

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome 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

GnomAD4 genome

AF:

0.000112

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74442

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41536

American (AMR)

AF:

0.0000654

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.000579

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68016

Other (OTH)

AF:

0.000474

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

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:

0.000404

Hom.:

Bravo

AF:

0.000117

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000206

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:2Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Autosomal dominant Parkinson disease 8

Uncertain:3Benign:1Other:1

May 28, 2019

Mendelics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Dec 06, 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.

GeneReviews

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

Aug 29, 2023

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

Oct 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 211 of the LRRK2 protein (p.Ala211Val). This variant is present in population databases (rs112794616, gnomAD 0.04%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with Parkinson disease (PMID: 17222106, 18213618, 19405094, 21885347, 29248340, 30598256). ClinVar contains an entry for this variant (Variation ID: 39223). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on LRRK2 protein function. Experimental studies have shown that this missense change affects LRRK2 function (PMID: 20642453, 27832104). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

not provided

Benign:1

Nov 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

LRRK2: BP4

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.27

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.031

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.40

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.72

M_CAP

Benign

0.0067

MetaRNN

Benign

0.047

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.2

PhyloP100

1.8

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.60

REVEL

Benign

0.21

Sift

Benign

0.29

Sift4G

Benign

1.0

Polyphen

0.010

Vest4

0.24

MVP

0.64

MPC

0.085

ClinPred

0.029

GERP RS

5.7

Varity_R

0.044

gMVP

0.26

Mutation Taster

=89/11

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over