rs869320644

Variant names:

• chr12-12149153-C-G
• rs869320644
• NM_002336.3:c.2995G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002336.3(LRP6):​c.2995G>C​(p.Gly999Arg) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G999D) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: LRP6 NM_002336.3 missense, splice_region
• Scores: Splicing: ADA: 0.2738
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.75
• 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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.16510174).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRP6	NM_002336.3	c.2995G>C	p.Gly999Arg	missense_variant, splice_region_variant	Exon 14 of 23	ENST00000261349.9	NP_002327.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRP6	ENST00000261349.9	c.2995G>C	p.Gly999Arg	missense_variant, splice_region_variant	Exon 14 of 23	1	NM_002336.3	ENSP00000261349.4
LRP6	ENST00000543091.1	c.2995G>C	p.Gly999Arg	missense_variant, splice_region_variant	Exon 14 of 23	1		ENSP00000442472.1
LRP6	ENST00000538239.5	n.2587G>C		splice_region_variant, non_coding_transcript_exon_variant	Exon 13 of 24	1		ENSP00000445083.1
BCL2L14	ENST00000298566.2	n.*24+10174C>G		intron_variant	Intron 5 of 6	2		ENSP00000298566.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461114 Hom.: 0 Cov.: 34 AF XY: 0.00000275 AC XY: 2 AN XY: 726912

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86240

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53396

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5702

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111414

Other (OTH) AF: 0.00 AC: 0 AN: 60342

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Orofacial cleft Uncertain:1

Mar 10, 2016

Lupski Lab, Baylor-Hopkins CMG, Baylor College of Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Uncertain	0.054	T
BayesDel_noAF	Benign	-0.16
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.34	T;T
Eigen	Benign	-0.46
Eigen_PC	Benign	-0.22
FATHMM_MKL	Pathogenic	0.97	D
M_CAP	Benign	0.085	D
MetaRNN	Benign	0.17	T;T
MetaSVM	Benign	-0.64	T
MutationAssessor	Benign	-0.51	N;.
PhyloP100		1.8
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-0.80	N;N
REVEL	Uncertain	0.31
Sift	Benign	0.15	T;T
Sift4G	Benign	0.36	T;T
Polyphen		0.13	B;B
Vest4		0.17
MutPred		0.47		Gain of catalytic residue at G999 (P = 0.0267);Gain of catalytic residue at G999 (P = 0.0267);
MVP		0.55
MPC		0.65
ClinPred		0.44	T
GERP RS		3.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.15
gMVP		0.31
Mutation Taster		=58/42	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.27
dbscSNV1_RF	Benign	0.52
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: rs869320644; hg19: chr12-12302087;