15-101051718-A-T

Variant names:

• chr15-101051718-A-T
• rs4965778
• NM_024652.6:c.3447A>T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_024652.6(LRRK1):​c.3447A>T​(p.Thr1149Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: LRRK1 NM_024652.6 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.42

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]

LOC105371026 (HGNC:):

ENSG00000259755 (HGNC:58299):

ACMG classification

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 (BayesDel_noAF=-0.94).
• BP7: Synonymous conserved (PhyloP=-2.42 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRRK1	NM_024652.6	c.3447A>T	p.Thr1149Thr	synonymous_variant	Exon 24 of 34	ENST00000388948.8	NP_078928.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRRK1	ENST00000388948.8	c.3447A>T	p.Thr1149Thr	synonymous_variant	Exon 24 of 34	5	NM_024652.6	ENSP00000373600.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 53

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.18
DANN	Benign	0.64

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.18		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: rs4965778; hg19: chr15-101591923;