Genetic Variant LRP1B:p.Pro4413Ser (chr2-140270252-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_018557.3(LRP1B):c.13237C>T(p.Pro4413Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000311 in 1,610,214 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

LRP1B
NM_018557.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.52

Variant links:

Genes affected

LRP1B (HGNC:6693): (LDL receptor related protein 1B) This gene encodes a member of the low density lipoprotein (LDL) receptor family. These receptors play a wide variety of roles in normal cell function and development due to their interactions with multiple ligands. Disruption of this gene has been reported in several types of cancer. [provided by RefSeq, Jun 2016]

LRP1B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRP1B	NM_018557.3 link	c.13237C>T	p.Pro4413Ser	missense_variant	Exon 86 of 91	ENST00000389484.8	NP_061027.2	Q9NZR2
LRP1B	XM_017004341.2 link	c.12847C>T	p.Pro4283Ser	missense_variant	Exon 86 of 91		XP_016859830.1
LRP1B	XM_017004342.1 link	c.8089C>T	p.Pro2697Ser	missense_variant	Exon 57 of 62		XP_016859831.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LRP1B	ENST00000389484.8 link	c.13237C>T	p.Pro4413Ser	missense_variant	Exon 86 of 91	1	NM_018557.3	ENSP00000374135.3	Q9NZR2
LRP1B	ENST00000437977.5 link	c.1930C>T	p.Pro644Ser	missense_variant	Exon 13 of 17	5		ENSP00000415052.1	H0Y7T7
LRP1B	ENST00000442974.1 link	c.430C>T	p.Pro144Ser	missense_variant	Exon 3 of 7	5		ENSP00000393859.1	H7C0A8

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151760

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

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

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

250258

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135230

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000218

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1458454

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

725664

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000757

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151760

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74090

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 30, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.13237C>T (p.P4413S) alteration is located in exon 86 (coding exon 86) of the LRP1B gene. This alteration results from a C to T substitution at nucleotide position 13237, causing the proline (P) at amino acid position 4413 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.16

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.49

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.65

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.050

MetaRNN

Uncertain

0.70

MetaSVM

Benign

-0.77

MutationAssessor

Uncertain

2.7

PrimateAI

Uncertain

0.66

PROVEAN

Uncertain

-3.1

REVEL

Uncertain

0.30

Sift

Benign

0.10

Sift4G

Uncertain

0.0040

Polyphen

0.78

Vest4

0.67

MutPred

0.63

Loss of glycosylation at T4410 (P = 0.0744);

MVP

0.17

MPC

0.50

ClinPred

0.64

GERP RS

5.7

Varity_R

0.21

gMVP

0.92

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over