rs369887158

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001171613.2(PREPL):c.1510A>T(p.Met504Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000185 in 1,603,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M504I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

PREPL
NM_001171613.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.0350

Publications

0 publications found

Variant links:

Genes affected

PREPL (HGNC:30228): (prolyl endopeptidase like) The protein encoded by this gene belongs to the prolyl oligopeptidase subfamily of serine peptidases. Mutations in this gene have been associated with hypotonia-cystinuria syndrome, also known as the 2p21 deletion syndrome. Several alternatively spliced transcript variants encoding either the same or different isoforms have been described for this gene.[provided by RefSeq, Jan 2010]

PREPL Gene-Disease associations (from GenCC):

hypotonia-cystinuria syndrome
Inheritance: AR Classification: STRONG Submitted by: G2P
myasthenic syndrome, congenital, 22
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, Illumina

PREPL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.04466787).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PREPL	NM_001171613.2 link	c.1510A>T	p.Met504Leu	missense_variant	Exon 11 of 14	ENST00000409411.6	NP_001165084.1	Q4J6C6-4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PREPL	ENST00000409411.6 link	c.1510A>T	p.Met504Leu	missense_variant	Exon 11 of 14	1	NM_001171613.2	ENSP00000387095.2		Q4J6C6-4

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152034

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000489

AC:

AN:

245592

AF XY:

0.0000528

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000301

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000982

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000198

AC:

287

AN:

1451964

Hom.:

Cov.:

AF XY:

0.000195

AC XY:

141

AN XY:

722424

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33078

American (AMR)

AF:

0.0000229

AC:

AN:

43584

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25920

East Asian (EAS)

AF:

0.00

AC:

AN:

39508

South Asian (SAS)

AF:

0.00

AC:

AN:

84586

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53342

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

0.000245

AC:

271

AN:

1106140

Other (OTH)

AF:

0.000250

AC:

AN:

60062

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152034

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74286

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41392

American (AMR)

AF:

0.00

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10586

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

67988

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000567

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Myasthenic syndrome, congenital, 22

Uncertain:1

Oct 17, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 593 of the PREPL protein (p.Met593Leu). This variant is present in population databases (rs369887158, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with PREPL-related conditions. ClinVar contains an entry for this variant (Variation ID: 478310). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Inborn genetic diseases

Uncertain:1

Mar 29, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1777A>T (p.M593L) alteration is located in exon 11 (coding exon 11) of the PREPL gene. This alteration results from a A to T substitution at nucleotide position 1777, causing the methionine (M) at amino acid position 593 to be replaced by a leucine (L). 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

0.10

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.62

CADD

Benign

(source)

DANN

Benign

0.86

DEOGEN2

Benign

0.015

.;.;.;T;T;T;T;.;.

Eigen

Benign

-0.84

Eigen_PC

Benign

-0.58

FATHMM_MKL

Uncertain

0.82

LIST_S2

Benign

0.78

T;.;.;.;.;.;T;T;T

M_CAP

Benign

0.023

MetaRNN

Benign

0.045

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-1.4

.;.;.;N;N;N;N;.;.

PhyloP100

0.035

PrimateAI

Uncertain

0.51

PROVEAN

Benign

0.42

N;N;N;N;N;N;N;N;N

REVEL

Benign

0.025

Sift

Benign

0.87

T;T;T;T;T;T;T;T;T

Sift4G

Benign

1.0

T;T;T;T;T;T;T;T;T

Polyphen

0.0, 0.0020

.;.;.;B;B;B;B;B;B

Vest4

0.25

MutPred

0.44

.;.;.;Gain of helix (P = 0.0854);Gain of helix (P = 0.0854);Gain of helix (P = 0.0854);Gain of helix (P = 0.0854);.;.;

MVP

0.14

MPC

0.0051

ClinPred

0.035

GERP RS

1.7

PromoterAI

-0.0088

Neutral

(source)

Varity_R

0.027

gMVP

0.45

Mutation Taster

=96/4

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over