15-100924682-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_024652.6(LRRK1):c.50C>T(p.Pro17Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000217 in 1,614,026 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P17P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

LRRK1
NM_024652.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.28

Variant links:

Genes affected

LRRK1 (HGNC:18608): (leucine rich repeat kinase 1) This gene encodes a multi-domain protein that is a leucine-rich repeat kinase and a GDP/GTP binding protein. The encoded protein is thought to play a role in the regulation of bone mass. Mice lacking a similar gene showed severe osteopetrosis, increased bone mineralization and decreased bone resorption. [provided by RefSeq, Jan 2017]

LRRK1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.015113443).

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.0000723 (11/152156) while in subpopulation EAS AF= 0.00154 (8/5184). AF 95% confidence interval is 0.000768. There are 0 homozygotes in gnomad4. There are 6 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRRK1	NM_024652.6 link	c.50C>T	p.Pro17Leu	missense_variant	Exon 2 of 34	ENST00000388948.8	NP_078928.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRRK1	ENST00000388948.8 link	c.50C>T	p.Pro17Leu	missense_variant	Exon 2 of 34	5	NM_024652.6	ENSP00000373600.3		Q38SD2-1

Frequencies

GnomAD3 genomes

AF:

0.0000724

AC:

AN:

152038

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00154

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000836

AC:

AN:

251236

Hom.:

AF XY:

0.0000810

AC XY:

AN XY:

135828

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000479

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152156

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74392

show subpopulations

Gnomad4 AFR

AF:

0.0000723

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00154

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000247

Hom.:

Bravo

AF:

0.0000567

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000132

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Feb 03, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with LRRK1-related conditions. This variant is present in population databases (rs180759486, gnomAD 0.1%). This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 17 of the LRRK1 protein (p.Pro17Leu). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.091

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.24

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.012

T;.;.

Eigen

Benign

0.061

Eigen_PC

Benign

0.16

FATHMM_MKL

Benign

0.48

LIST_S2

Benign

0.79

T;T;D

M_CAP

Benign

0.037

MetaRNN

Benign

0.015

T;T;T

MetaSVM

Benign

-0.63

MutationAssessor

Benign

1.7

L;.;L

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.66

N;D;N

REVEL

Benign

0.093

Sift

Uncertain

0.019

D;D;D

Sift4G

Benign

0.31

T;D;T

Polyphen

0.34

B;.;P

Vest4

0.29

MVP

0.87

MPC

0.43

ClinPred

0.079

GERP RS

5.6

Varity_R

0.12

gMVP

0.18

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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