4-7433970-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001085382.2(PSAPL1):c.910C>G(p.Leu304Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,496 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

PSAPL1
NM_001085382.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.11

Variant links:

Genes affected

PSAPL1 (HGNC:33131): (prosaposin like 1) This gene encodes a protein that is related to the glycoprotein prosaposin. Based on sequence similarity between the encoded protein and prosaposin, it is predicted that the encoded protein is a preproprotein that is proteolytically processed to generate multiple protein products. These predicted products include saposins A-like, B-like, C-like, and D-like, which may play a role in the lysosomal degradation of sphingolipids. [provided by RefSeq, Jul 2015]

PSAPL1 links:

SORCS2 (HGNC:16698): (sortilin related VPS10 domain containing receptor 2) This gene encodes one family member of vacuolar protein sorting 10 (VPS10) domain-containing receptor proteins. The VPS10 domain name comes from the yeast carboxypeptidase Y sorting receptor Vps10 protein. Members of this gene family are large with many exons but the CDS lengths are usually less than 3700 nt. Very large introns typically separate the exons encoding the VPS10 domain; the remaining exons are separated by much smaller-sized introns. These genes are strongly expressed in the central nervous system. [provided by RefSeq, Jul 2008]

SORCS2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10931626).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PSAPL1	NM_001085382.2 linkuse as main transcript	c.910C>G	p.Leu304Val	missense_variant	1/1	ENST00000319098.7
SORCS2	NM_020777.3 linkuse as main transcript	c.548+37615G>C		intron_variant		ENST00000507866.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
PSAPL1	ENST00000319098.7 linkuse as main transcript	c.910C>G	p.Leu304Val	missense_variant	1/1		NM_001085382.2	P1
SORCS2	ENST00000507866.6 linkuse as main transcript	c.548+37615G>C		intron_variant		1	NM_020777.3	P1
SORCS2	ENST00000511199.1 linkuse as main transcript	n.163+37615G>C		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000803

AC:

AN:

248922

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135046

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

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:

0.00000616

AC:

AN:

1461496

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727032

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000151

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 07, 2023

The c.910C>G (p.L304V) alteration is located in exon 1 (coding exon 1) of the PSAPL1 gene. This alteration results from a C to G substitution at nucleotide position 910, causing the leucine (L) at amino acid position 304 to be replaced by a valine (V). 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

Benign

0.13

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.39

Cadd

Benign

0.60

Dann

Benign

0.59

DEOGEN2

Benign

0.067

Eigen

Benign

-0.71

Eigen_PC

Benign

-0.88

FATHMM_MKL

Benign

0.011

LIST_S2

Benign

0.36

M_CAP

Benign

0.011

MetaRNN

Benign

0.11

MetaSVM

Benign

-0.66

MutationAssessor

Benign

1.1

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.35

PROVEAN

Benign

0.22

REVEL

Benign

0.26

Sift

Benign

1.0

Sift4G

Benign

0.39

Polyphen

0.90

Vest4

0.13

MutPred

0.50

Gain of catalytic residue at L304 (P = 0.0503);

MVP

0.84

MPC

0.032

ClinPred

0.10

GERP RS

-0.90

Varity_R

0.068

gMVP

0.33

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