4-3518076-GGTCC-G

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_002337.4(LRPAP1):​c.705_708del​(p.Asp236AlafsTer21) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000137 in 1,460,268 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

LRPAP1
NM_002337.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 4.25
Variant links:
Genes affected
LRPAP1 (HGNC:6701): (LDL receptor related protein associated protein 1) This gene encodes a protein that interacts with the low density lipoprotein (LDL) receptor-related protein and facilitates its proper folding and localization by preventing the binding of ligands. Mutations in this gene have been identified in individuals with myopia 23. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 4-3518076-GGTCC-G is Pathogenic according to our data. Variant chr4-3518076-GGTCC-G is described in ClinVar as [Pathogenic]. Clinvar id is 1526247.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LRPAP1NM_002337.4 linkuse as main transcriptc.705_708del p.Asp236AlafsTer21 frameshift_variant 5/8 ENST00000650182.1 NP_002328.1
LRPAP1NR_110005.2 linkuse as main transcriptn.668_671del non_coding_transcript_exon_variant 5/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LRPAP1ENST00000650182.1 linkuse as main transcriptc.705_708del p.Asp236AlafsTer21 frameshift_variant 5/8 NM_002337.4 ENSP00000497444 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248886
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
134994
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460268
Hom.:
0
AF XY:
0.00000275
AC XY:
2
AN XY:
726436
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Myopia 23, autosomal recessive Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testing3billionMar 22, 2022Frameshift: predicted to result in a loss or disruption of normal protein function through nonsense-mediated decay (NMD) or protein truncation. Multiple pathogenic variants are reported downstream of the variant.It is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency:0.0000040). Therefore, this variant is classified as pathogenic according to the recommendation of ACMG/AMP guideline. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs763010898; hg19: chr4-3519803; API