2-44359497-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP6

The NM_006036.4(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).

Frequency

Genomes: 𝑓 0.00025 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

PREPL
NM_006036.4 missense, splice_region

Scores

5
14
Splicing: ADA: 0.9999
2

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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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: {Uncertain_significance=1, Likely_benign=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PREPLNM_001171613.2 linkc.-49+1883G>T intron_variant ENST00000409411.6 NP_001165084.1 Q4J6C6-4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PREPLENST00000409411.6 linkc.-49+1883G>T intron_variant 1 NM_001171613.2 ENSP00000387095.2 Q4J6C6-4

Frequencies

GnomAD3 genomes
AF:
0.000250
AC:
38
AN:
152024
Hom.:
1
Cov.:
32
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:
93
AN:
251030
Hom.:
0
AF XY:
0.000413
AC XY:
56
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.:
0
Cov.:
30
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:
38
AN:
152142
Hom.:
1
Cov.:
32
AF XY:
0.000350
AC XY:
26
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.:
0
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000329
AC:
40
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 submitterclinical testingGenetic Services Laboratory, University of ChicagoFeb 02, 2017- -
Myasthenic syndrome, congenital, 22 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 18, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.31
CADD
Uncertain
25
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
D
LIST_S2
Benign
0.78
.;.;.;T;T;T;T
M_CAP
Benign
0.0043
T
MetaRNN
Benign
0.0069
T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.55
N;N;N;N;N;N;.
PrimateAI
Uncertain
0.50
T
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
T
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.

Other links and lift over

dbSNP: rs199854790; hg19: chr2-44586636; API