rs199854790

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 6P and 1B. PM2PP3_StrongBP6

The ENST00000260648.10(PREPL):c.219G>T(p.Lys73Asn) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000158 in 1,600,068 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K73E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00025 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

PREPL
ENST00000260648.10 missense, splice_region

Scores

Splicing: ADA: 0.9999

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 3.48

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

BP6

Variant 2-44359497-C-A is Benign according to our data. Variant chr2-44359497-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 436415.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PREPL	NM_001171613.2 linkuse as main transcript	c.-49+1883G>T		intron_variant		ENST00000409411.6	NP_001165084.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PREPL	ENST00000409411.6 linkuse as main transcript	c.-49+1883G>T		intron_variant		1	NM_001171613.2	ENSP00000387095	P4	Q4J6C6-4

Frequencies

GnomAD3 genomes

AF:

0.000250

AC:

AN:

152024

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:

0.00331

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000370

AC:

AN:

251030

Hom.:

AF XY:

0.000413

AC XY:

AN XY:

135710

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:

0.00

Gnomad FIN exome

AF:

0.00361

Gnomad NFE exome

AF:

0.0000969

Gnomad OTH exome

AF:

0.000654

GnomAD4 exome

AF:

0.000148

AC:

215

AN:

1447926

Hom.:

Cov.:

AF XY:

0.000141

AC XY:

102

AN XY:

721092

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:

0.00

Gnomad4 FIN exome

AF:

0.00330

Gnomad4 NFE exome

AF:

0.0000209

Gnomad4 OTH exome

AF:

0.000267

GnomAD4 genome

AF:

0.000250

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.000350

AC XY:

AN XY:

74384

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00331

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000533

Hom.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000329

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Feb 02, 2017

- -

Myasthenic syndrome, congenital, 22

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 18, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.016

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

Eigen

Benign

0.17

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.78

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

M_CAP

Benign

0.0043

MetaRNN

Benign

0.0069

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

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

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

MutationTaster

Benign

0.99

D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-0.60

N;N;N;N;N;N;D

REVEL

Benign

0.068

Sift

Uncertain

0.010

D;D;D;D;D;D;D

Sift4G

Benign

0.086

T;T;T;T;T;T;D

Polyphen

0.20

B;B;B;B;P;P;.

Vest4

0.60

MutPred

0.57

Loss of methylation at K73 (P = 2e-04);Loss of methylation at K73 (P = 2e-04);Loss of methylation at K73 (P = 2e-04);Loss of methylation at K73 (P = 2e-04);Loss of methylation at K73 (P = 2e-04);Loss of methylation at K73 (P = 2e-04);Loss of methylation at K73 (P = 2e-04);

MVP

0.45

MPC

0.0058

ClinPred

0.044

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.20

gMVP

0.47

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.99

SpliceAI score (max)

0.60

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.60

Position offset: 0

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