chr12-12165221-C-A

Variant names:

• chr12-12165221-C-A
• rs869320642
• NM_002336.3:c.1620G>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_002336.3(LRP6):​c.1620G>T​(p.Leu540Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: LRP6 NM_002336.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.851
• Publications: 0 publications found

Genes affected

LRP6 (HGNC:6698): (LDL receptor related protein 6) This gene encodes a member of the low density lipoprotein (LDL) receptor gene family. LDL receptors are transmembrane cell surface proteins involved in receptor-mediated endocytosis of lipoprotein and protein ligands. The protein encoded by this gene functions as a receptor or, with Frizzled, a co-receptor for Wnt and thereby transmits the canonical Wnt/beta-catenin signaling cascade. Through its interaction with the Wnt/beta-catenin signaling cascade this gene plays a role in the regulation of cell differentiation, proliferation, and migration and the development of many cancer types. This protein undergoes gamma-secretase dependent RIP- (regulated intramembrane proteolysis) processing but the precise locations of the cleavage sites have not been determined.[provided by RefSeq, Dec 2009]

BCL2L14 (HGNC:16657): (BCL2 like 14) The protein encoded by this gene belongs to the BCL2 protein family. BCL2 family members form hetero- or homodimers and act as anti- or pro-apoptotic regulators that are involved in a wide variety of cellular activities. Overexpression of this gene has been shown to induce apoptosis in cells. Three alternatively spliced transcript variants encoding two distinct isoforms have been reported for this gene. [provided by RefSeq, May 2009]

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.76

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002336.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRP6	NM_002336.3	MANE Select	c.1620G>T	p.Leu540Phe	missense	Exon 8 of 23	NP_002327.2	O75581
	LRP6	NM_001414244.1		c.1620G>T	p.Leu540Phe	missense	Exon 8 of 24	NP_001401173.1
	LRP6	NM_001414245.1		c.1620G>T	p.Leu540Phe	missense	Exon 8 of 24	NP_001401174.1	O75581

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRP6	ENST00000261349.9	TSL:1 MANE Select	c.1620G>T	p.Leu540Phe	missense	Exon 8 of 23	ENSP00000261349.4	O75581
	LRP6	ENST00000543091.1	TSL:1	c.1620G>T	p.Leu540Phe	missense	Exon 8 of 23	ENSP00000442472.1	F5H7J9
	LRP6	ENST00000538239.5	TSL:1	n.1212G>T		non_coding_transcript_exon	Exon 7 of 24	ENSP00000445083.1	H0YGW5

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Orofacial cleft (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.67
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.040
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.82	D
Eigen	Uncertain	0.30
Eigen_PC	Benign	0.22
FATHMM_MKL	Benign	0.72	D
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.76	D
MetaSVM	Uncertain	0.31	D
MutationAssessor	Pathogenic	3.2	M
PhyloP100		0.85
PrimateAI	Uncertain	0.78	T
PROVEAN	Uncertain	-3.3	D
REVEL	Pathogenic	0.66
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.015	D
Polyphen		0.99	D
Vest4		0.69
MutPred		0.43		Loss of stability (P = 0.1111)
MVP		0.80
MPC		1.5
ClinPred		0.98	D
GERP RS		2.2
Varity_R		0.30
gMVP		0.65
Mutation Taster		=36/64	disease causing

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

Other links and lift over

dbSNP: rs869320642; hg19: chr12-12318155;