chr15-101051718-A-T

Position:

• chr15-101051718-A-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.Thr1149=) 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. Synonymous variant affecting the same amino acid position (i.e. T1149T) has been classified as Benign.

• 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]

(HGNC:):

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/exons	MANE	UniProt
LRRK1	NM_024652.6	c.3447A>T	p.Thr1149=	synonymous_variant	24/34	ENST00000388948.8
LOC105371026	XR_001751726.2	n.1051-939T>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LRRK1	ENST00000388948.8	c.3447A>T	p.Thr1149=	synonymous_variant	24/34	5	NM_024652.6	P1
LRRK1	ENST00000525284.5	c.*1380A>T		3_prime_UTR_variant, NMD_transcript_variant	23/33	1
LRRK1	ENST00000531270.5	c.*1211A>T		3_prime_UTR_variant, NMD_transcript_variant	22/32	1
	ENST00000559857.1	n.673-939T>A		intron_variant, non_coding_transcript_variant		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;