rs77018758

Positions:

• chr12-40308467-G-C
• chr12-40308467-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_198578.4(LRRK2):​c.3960G>C​(p.Arg1320Ser) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: LRRK2 NM_198578.4 missense, splice_region
• Scores: Splicing: ADA: 0.9402
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.62

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRRK2	NM_198578.4	c.3960G>C	p.Arg1320Ser	missense_variant, splice_region_variant	29/51	ENST00000298910.12	NP_940980.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRRK2	ENST00000298910.12	c.3960G>C	p.Arg1320Ser	missense_variant, splice_region_variant	29/51	1	NM_198578.4	ENSP00000298910	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.80
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.11
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.14	T
Eigen	Benign	-0.22
Eigen_PC	Benign	-0.065
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.066	D
MetaRNN	Uncertain	0.65	D
MetaSVM	Benign	-0.95	T
MutationAssessor	Benign	0.81	L
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.72	T
PROVEAN	Benign	-1.4	N
REVEL	Uncertain	0.31
Sift	Benign	0.51	T
Sift4G	Uncertain	0.057	T
Polyphen		0.094	B
Vest4		0.92
MutPred		0.49		Loss of MoRF binding (P = 0.0219);
MVP		0.91
MPC		0.50
ClinPred		0.89	D
GERP RS		3.7
Varity_R		0.35
gMVP		0.94

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.94
dbscSNV1_RF	Pathogenic	0.81
SpliceAI score (max)		0.14		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

Other links and lift over

dbSNP: rs77018758; hg19: chr12-40702269;