rs142981913

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001171613.2(PREPL):c.450A>C(p.Lys150Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000558 in 1,613,272 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00043 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

PREPL
NM_001171613.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.222

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 -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07309744).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PREPL	NM_001171613.2 link	c.450A>C	p.Lys150Asn	missense_variant	Exon 5 of 14	ENST00000409411.6	NP_001165084.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PREPL	ENST00000409411.6 link	c.450A>C	p.Lys150Asn	missense_variant	Exon 5 of 14	1	NM_001171613.2	ENSP00000387095.2

Frequencies

GnomAD3 genomes

AF:

0.000434

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00152

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000836

AC:

AN:

251220

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.00111

Gnomad AMR exome

AF:

0.0000580

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1461142

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

726908

show subpopulations

African (AFR)

AF:

0.000478

AC:

AN:

33440

American (AMR)

AF:

0.0000672

AC:

AN:

44672

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.00

AC:

AN:

39654

South Asian (SAS)

AF:

0.00

AC:

AN:

86216

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53392

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111544

Other (OTH)

AF:

0.0000828

AC:

AN:

60356

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.444

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000434

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.000404

AC XY:

AN XY:

74312

show subpopulations

African (AFR)

AF:

0.00152

AC:

AN:

41440

American (AMR)

AF:

0.000131

AC:

AN:

15258

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:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68014

Other (OTH)

AF:

0.000478

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

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:

0.000171

Hom.:

Bravo

AF:

0.000480

ESP6500AA

AF:

0.00182

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000988

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Myasthenic syndrome, congenital, 22

Uncertain:2

Jan 23, 2023

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 06, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces lysine, which is basic and polar, with asparagine, which is neutral and polar, at codon 239 of the PREPL protein (p.Lys239Asn). This variant is present in population databases (rs142981913, gnomAD 0.1%). 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: 544537). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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

Apr 12, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.717A>C (p.K239N) alteration is located in exon 5 (coding exon 5) of the PREPL gene. This alteration results from a A to C substitution at nucleotide position 717, causing the lysine (K) at amino acid position 239 to be replaced by an asparagine (N). 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

Uncertain

0.54

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.53

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.030

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

Eigen

Benign

-0.29

Eigen_PC

Benign

-0.27

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.87

D;.;.;.;.;.;D;D;D

M_CAP

Benign

0.012

MetaRNN

Benign

0.073

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

MetaSVM

Benign

-0.90

MutationAssessor

Benign

0.55

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

PhyloP100

0.22

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-1.4

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

REVEL

Benign

0.043

Sift

Benign

0.17

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

Sift4G

Benign

0.31

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

Polyphen

0.084, 0.99, 0.45

.;.;.;B;B;B;B;D;B

Vest4

0.55

MutPred

0.44

.;.;.;Loss of ubiquitination at K239 (P = 0.0127);Loss of ubiquitination at K239 (P = 0.0127);Loss of ubiquitination at K239 (P = 0.0127);Loss of ubiquitination at K239 (P = 0.0127);Loss of ubiquitination at K239 (P = 0.0127);Loss of ubiquitination at K239 (P = 0.0127);

MVP

0.31

MPC

0.0049

ClinPred

0.038

GERP RS

-2.6

Varity_R

0.058

gMVP

0.61

Mutation Taster

=83/17

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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