12-57199493-G-A

Variant names:

• chr12-57199493-G-A
• rs74429938
• NM_002332.3:c.9865+93G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_002332.3(LRP1):​c.9865+93G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000512 in 1,362,632 control chromosomes in the GnomAD database, including 13 homozygotes. 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: 𝑓 0.00024 (1 hom., cov: 33)
  • Exomes 𝑓: 0.00055 (12 hom.)
• Consequence: LRP1 NM_002332.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.391
• Publications: 1 publications found

Genes affected

LRP1 (HGNC:6692): (LDL receptor related protein 1) This gene encodes a member of the low-density lipoprotein receptor family of proteins. The encoded preproprotein is proteolytically processed by furin to generate 515 kDa and 85 kDa subunits that form the mature receptor (PMID: 8546712). This receptor is involved in several cellular processes, including intracellular signaling, lipid homeostasis, and clearance of apoptotic cells. In addition, the encoded protein is necessary for the alpha 2-macroglobulin-mediated clearance of secreted amyloid precursor protein and beta-amyloid, the main component of amyloid plaques found in Alzheimer patients. Expression of this gene decreases with age and has been found to be lower than controls in brain tissue from Alzheimer's disease patients. [provided by RefSeq, Oct 2015]

LRP1 Gene-Disease associations (from GenCC):

• keratosis follicularis spinulosa decalvans

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• atrophoderma vermiculata

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• developmental dysplasia of the hip 3

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• keratosis pilaris atrophicans

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
• schizophrenia

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BS1: Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000243 (37/152296) while in subpopulation EAS AF = 0.00715 (37/5174). AF 95% confidence interval is 0.00533. There are 1 homozygotes in GnomAd4. There are 19 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
• BS2: High Homozygotes in GnomAdExome4 at 12 Unknown,AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002332.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRP1	NM_002332.3	MANE Select	c.9865+93G>A		intron	N/A	NP_002323.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRP1	ENST00000243077.8	TSL:1 MANE Select	c.9865+93G>A		intron	N/A	ENSP00000243077.3

Frequencies

GnomAD3 genomes AF: 0.000243 AC: 37 AN: 152178 Hom.: 1 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00713

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.000546 AC: 661 AN: 1210336 Hom.: 12 AF XY: 0.000537 AC XY: 324 AN XY: 603738

African (AFR) AF: 0.00 AC: 0 AN: 28588

American (AMR) AF: 0.00 AC: 0 AN: 36498

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 21026

East Asian (EAS) AF: 0.0175 AC: 655 AN: 37420

South Asian (SAS) AF: 0.00 AC: 0 AN: 71862

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 36334

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3532

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 923488

Other (OTH) AF: 0.000116 AC: 6 AN: 51588

GnomAD4 genome AF: 0.000243 AC: 37 AN: 152296 Hom.: 1 Cov.: 33 AF XY: 0.000255 AC XY: 19 AN XY: 74466

African (AFR) AF: 0.00 AC: 0 AN: 41552

American (AMR) AF: 0.00 AC: 0 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00715 AC: 37 AN: 5174

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68014

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.000121

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	2.7
DANN	Benign	0.28
PhyloP100		-0.39
Mutation Taster		=100/0	polymorphism

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: rs74429938; hg19: chr12-57593276;