chrX-129739220-C-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_003399.6(XPNPEP2):​c.7C>T​(p.Arg3Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000406 in 1,207,713 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 15 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000045 ( 0 hom., 2 hem., cov: 22)
Exomes 𝑓: 0.000040 ( 0 hom. 13 hem. )

Consequence

XPNPEP2
NM_003399.6 missense

Scores

1
16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.48
Variant links:
Genes affected
XPNPEP2 (HGNC:12823): (X-prolyl aminopeptidase 2) Aminopeptidase P is a hydrolase specific for N-terminal imido bonds, which are common to several collagen degradation products, neuropeptides, vasoactive peptides, and cytokines. Structurally, the enzyme is a member of the 'pita bread fold' family and occurs in mammalian tissues in both soluble and GPI-anchored membrane-bound forms. A membrane-bound and soluble form of this enzyme have been identified as products of two separate genes. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.02745846).
BP6
Variant X-129739220-C-T is Benign according to our data. Variant chrX-129739220-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3191220.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
XPNPEP2NM_003399.6 linkuse as main transcriptc.7C>T p.Arg3Trp missense_variant 1/21 ENST00000371106.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
XPNPEP2ENST00000371106.4 linkuse as main transcriptc.7C>T p.Arg3Trp missense_variant 1/211 NM_003399.6 P1
XPNPEP2ENST00000371105.7 linkuse as main transcriptn.247C>T non_coding_transcript_exon_variant 1/62
XPNPEP2ENST00000681234.1 linkuse as main transcriptn.272C>T non_coding_transcript_exon_variant 1/7

Frequencies

GnomAD3 genomes
AF:
0.0000447
AC:
5
AN:
111742
Hom.:
0
Cov.:
22
AF XY:
0.0000590
AC XY:
2
AN XY:
33896
show subpopulations
Gnomad AFR
AF:
0.0000651
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000946
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:
0.0000377
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000445
AC:
8
AN:
179687
Hom.:
0
AF XY:
0.0000306
AC XY:
2
AN XY:
65427
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000363
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000373
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000401
AC:
44
AN:
1095971
Hom.:
0
Cov.:
29
AF XY:
0.0000359
AC XY:
13
AN XY:
362209
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000166
Gnomad4 SAS exome
AF:
0.0000369
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000416
Gnomad4 OTH exome
AF:
0.0000434
GnomAD4 genome
AF:
0.0000447
AC:
5
AN:
111742
Hom.:
0
Cov.:
22
AF XY:
0.0000590
AC XY:
2
AN XY:
33896
show subpopulations
Gnomad4 AFR
AF:
0.0000651
Gnomad4 AMR
AF:
0.0000946
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000377
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000642
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsOct 02, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.74
CADD
Benign
2.1
DANN
Benign
0.97
DEOGEN2
Benign
0.0075
T;T
FATHMM_MKL
Benign
0.031
N
LIST_S2
Benign
0.75
T;T
M_CAP
Benign
0.029
D
MetaRNN
Benign
0.027
T;T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
-1.4
.;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.91
N;N
REVEL
Benign
0.21
Sift
Benign
0.22
T;T
Sift4G
Uncertain
0.035
D;T
Polyphen
0.0
.;B
Vest4
0.11
MutPred
0.33
Loss of disorder (P = 0.0062);Loss of disorder (P = 0.0062);
MVP
0.26
MPC
0.056
ClinPred
0.067
T
GERP RS
-3.8
Varity_R
0.074
gMVP
0.26

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs777882575; hg19: chrX-128873196; API