chr6-32162807-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_005155.7(PPT2):​c.766G>A​(p.Val256Ile) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,613,260 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000022 ( 1 hom. )

Consequence

PPT2
NM_005155.7 missense, splice_region

Scores

5
12
Splicing: ADA: 0.8452
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.35
Variant links:
Genes affected
PPT2 (HGNC:9326): (palmitoyl-protein thioesterase 2) This gene encodes a member of the palmitoyl-protein thioesterase family. The encoded glycosylated lysosomal protein has palmitoyl-CoA hydrolase activity in vitro, but does not hydrolyze palmitate from cysteine residues in proteins. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the downstream EGFL8 (EGF-like-domain, multiple 8) gene. [provided by RefSeq, Feb 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2712989).
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PPT2NM_005155.7 linkuse as main transcriptc.766G>A p.Val256Ile missense_variant, splice_region_variant 9/9 ENST00000324816.11
PPT2-EGFL8NR_037861.1 linkuse as main transcriptn.1179+185G>A intron_variant, non_coding_transcript_variant
PPT2NM_138717.3 linkuse as main transcriptc.784G>A p.Val262Ile missense_variant, splice_region_variant 9/9
PPT2NM_001204103.2 linkuse as main transcriptc.766G>A p.Val256Ile missense_variant, splice_region_variant 9/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PPT2ENST00000324816.11 linkuse as main transcriptc.766G>A p.Val256Ile missense_variant, splice_region_variant 9/91 NM_005155.7 P1Q9UMR5-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152176
Hom.:
0
Cov.:
33
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:
0.0127
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250002
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135146
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000100
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000656
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000219
AC:
32
AN:
1460966
Hom.:
1
Cov.:
31
AF XY:
0.0000193
AC XY:
14
AN XY:
726814
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152294
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74456
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:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.0000508
Hom.:
0
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

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 submitterclinical testingGenomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of PhiladelphiaMay 12, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.041
T
BayesDel_noAF
Benign
-0.12
CADD
Uncertain
24
DANN
Benign
0.86
Eigen
Benign
0.16
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.83
T;.;T;.;.
M_CAP
Uncertain
0.094
D
MetaRNN
Benign
0.27
T;T;T;T;T
MetaSVM
Uncertain
0.15
D
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-0.020
N;N;N;N;N
REVEL
Uncertain
0.35
Sift
Benign
0.92
T;T;T;T;T
Sift4G
Benign
0.96
T;T;T;T;T
Polyphen
0.49
.;P;P;P;P
Vest4
0.22
MutPred
0.44
.;Gain of sheet (P = 0.0101);Gain of sheet (P = 0.0101);Gain of sheet (P = 0.0101);Gain of sheet (P = 0.0101);
MVP
0.55
MPC
0.88
ClinPred
0.36
T
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.12
gMVP
0.36

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.85
dbscSNV1_RF
Benign
0.57
SpliceAI score (max)
0.090
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.

Other links and lift over

dbSNP: rs771678882; hg19: chr6-32130584; COSMIC: COSV100247179; COSMIC: COSV100247179; API