19-18357503-G-C

Variant summary

Our verdict is . The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017712.4(PGPEP1):​c.325G>C​(p.Val109Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,284 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V109M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PGPEP1
NM_017712.4 missense

Scores

5
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.11

Publications

2 publications found
Variant links:
Genes affected
PGPEP1 (HGNC:13568): (pyroglutamyl-peptidase I) The gene encodes a cysteine protease and member of the peptidase C15 family of proteins. The encoded protein cleaves amino terminal pyroglutamate residues from protein substrates including thyrotropin-releasing hormone and other neuropeptides. Expression of this gene may be downregulated in colorectal cancer, while activity of the encoded protein may be negatively correlated with cancer progression in colorectal cancer patients. Activity of the encoded protease may also be altered in other disease states including in liver cirrhosis, which is associated with reduced protease activity, and in necrozoospermia, which is associated with elevated protease activity. [provided by RefSeq, Jul 2016]

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_017712.4, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (REVEL=0.13).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017712.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PGPEP1
NM_017712.4
MANE Select
c.325G>Cp.Val109Leu
missense
Exon 4 of 5NP_060182.1Q9NXJ5-1
PGPEP1
NM_001329471.2
c.325G>Cp.Val109Leu
missense
Exon 4 of 5NP_001316400.1
PGPEP1
NM_001308366.2
c.325G>Cp.Val109Leu
missense
Exon 4 of 5NP_001295295.1S4R2Y9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PGPEP1
ENST00000269919.11
TSL:1 MANE Select
c.325G>Cp.Val109Leu
missense
Exon 4 of 5ENSP00000269919.3Q9NXJ5-1
PGPEP1
ENST00000596962.5
TSL:1
n.*176G>C
3_prime_UTR
Exon 5 of 6ENSP00000470622.1M0QX66
PGPEP1
ENST00000600283.6
TSL:1
n.*176G>C
3_prime_UTR
Exon 5 of 6ENSP00000468932.1M0QX66

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000401
AC:
1
AN:
249676
AF XY:
0.00000741
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461284
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726900
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44640
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39672
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86140
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53346
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111760
Other (OTH)
AF:
0.00
AC:
0
AN:
60368
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.13
T
Eigen
Benign
0.15
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.20
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.5
L
PhyloP100
4.1
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-0.35
N
REVEL
Benign
0.13
Sift
Benign
0.54
T
Sift4G
Benign
0.59
T
PromoterAI
0.0044
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.18
gMVP
0.38
Mutation Taster
=73/27
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

Other links and lift over

dbSNP: rs201898854;
hg19: chr19-18468313;
COSMIC: COSV99416408;
COSMIC: COSV99416408;
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