rs2024481

Positions:

• chr2-169174407-C-A
• chr2-169174407-C-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_004525.3(LRP2):​c.10769-243G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.474 in 152,094 control chromosomes in the GnomAD database, including 17,772 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.47 (17772 hom., cov: 33)
• Consequence: LRP2 NM_004525.3 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.518

Genes affected

LRP2 (HGNC:6694): (LDL receptor related protein 2) The protein encoded by this gene, low density lipoprotein-related protein 2 (LRP2) or megalin, is a multi-ligand endocytic receptor that is expressed in many different tissues but primarily in absorptive epithilial tissues such as the kidney. This glycoprotein has a large amino-terminal extracellular domain, a single transmembrane domain, and a short carboxy-terminal cytoplasmic tail. The extracellular ligand-binding-domains bind diverse macromolecules including albumin, apolipoproteins B and E, and lipoprotein lipase. The LRP2 protein is critical for the reuptake of numerous ligands, including lipoproteins, sterols, vitamin-binding proteins, and hormones. This protein also has a role in cell-signaling; extracellular ligands include parathyroid horomones and the morphogen sonic hedgehog while cytosolic ligands include MAP kinase scaffold proteins and JNK interacting proteins. Recycling of this membrane receptor is regulated by phosphorylation of its cytoplasmic domain. Mutations in this gene cause Donnai-Barrow syndrome (DBS) and facio-oculoacoustico-renal syndrome (FOAR).[provided by RefSeq, Aug 2009]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BP6: Variant 2-169174407-C-A is Benign according to our data. Variant chr2-169174407-C-A is described in ClinVar as [Benign]. Clinvar id is 1228008.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.602 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LRP2	NM_004525.3	c.10769-243G>T		intron_variant		ENST00000649046.1
LRP2	XM_011511183.4	c.10769-243G>T		intron_variant
LRP2	XM_011511184.3	c.8480-243G>T		intron_variant
LRP2	XM_047444340.1	c.9845-243G>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LRP2	ENST00000649046.1	c.10769-243G>T		intron_variant			NM_004525.3	P1
LRP2	ENST00000649153.1	c.1669-243G>T		intron_variant, NMD_transcript_variant

Frequencies

GnomAD3 genomes AF: 0.473 AC: 71955 AN: 151978 Hom.: 17757 Cov.: 33

Gnomad AFR AF: 0.398

Gnomad AMI AF: 0.449

Gnomad AMR AF: 0.612

Gnomad ASJ AF: 0.452

Gnomad EAS AF: 0.105

Gnomad SAS AF: 0.484

Gnomad FIN AF: 0.455

Gnomad MID AF: 0.500

Gnomad NFE AF: 0.520

Gnomad OTH AF: 0.483

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.474 AC: 72020 AN: 152094 Hom.: 17772 Cov.: 33 AF XY: 0.472 AC XY: 35083 AN XY: 74368

Gnomad4 AFR AF: 0.398

Gnomad4 AMR AF: 0.612

Gnomad4 ASJ AF: 0.452

Gnomad4 EAS AF: 0.105

Gnomad4 SAS AF: 0.485

Gnomad4 FIN AF: 0.455

Gnomad4 NFE AF: 0.520

Gnomad4 OTH AF: 0.483

Alfa AF: 0.429 Hom.: 1929

Bravo AF: 0.479

Asia WGS AF: 0.352 AC: 1224 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Nov 12, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	1.4
DANN	Benign	0.54

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

Publications

LitVar

Other links and lift over

dbSNP: rs2024481; hg19: chr2-170030917;