X-129746277-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_003399.6(XPNPEP2):​c.340G>A​(p.Asp114Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000347 in 1,209,812 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 16 hemizygotes in GnomAD. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000062 ( 0 hom., 4 hem., cov: 23)
Exomes 𝑓: 0.000032 ( 0 hom. 12 hem. )

Consequence

XPNPEP2
NM_003399.6 missense

Scores

10
4
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.86
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 Likely_benign. Variant got -4 ACMG points.

BS2
High Hemizygotes in GnomAd4 at 4 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
XPNPEP2NM_003399.6 linkc.340G>A p.Asp114Asn missense_variant 5/21 ENST00000371106.4 NP_003390.4 O43895

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
XPNPEP2ENST00000371106.4 linkc.340G>A p.Asp114Asn missense_variant 5/211 NM_003399.6 ENSP00000360147.3 O43895
XPNPEP2ENST00000371105.7 linkn.580G>A non_coding_transcript_exon_variant 5/62
XPNPEP2ENST00000681234.1 linkn.605G>A non_coding_transcript_exon_variant 5/7

Frequencies

GnomAD3 genomes
AF:
0.0000624
AC:
7
AN:
112233
Hom.:
0
Cov.:
23
AF XY:
0.000116
AC XY:
4
AN XY:
34387
show subpopulations
Gnomad AFR
AF:
0.0000324
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000839
Gnomad SAS
AF:
0.00111
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000659
AC:
12
AN:
182226
Hom.:
0
AF XY:
0.0000449
AC XY:
3
AN XY:
66752
show subpopulations
Gnomad AFR exome
AF:
0.0000763
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000722
Gnomad SAS exome
AF:
0.0000528
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000319
AC:
35
AN:
1097527
Hom.:
0
Cov.:
30
AF XY:
0.0000331
AC XY:
12
AN XY:
362989
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000497
Gnomad4 SAS exome
AF:
0.0000555
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000178
Gnomad4 OTH exome
AF:
0.0000217
GnomAD4 genome
AF:
0.0000623
AC:
7
AN:
112285
Hom.:
0
Cov.:
23
AF XY:
0.000116
AC XY:
4
AN XY:
34449
show subpopulations
Gnomad4 AFR
AF:
0.0000323
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000842
Gnomad4 SAS
AF:
0.00111
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
1
Bravo
AF:
0.0000869
ExAC
AF:
0.0000659
AC:
8

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 testingAmbry GeneticsAug 10, 2024The c.340G>A (p.D114N) alteration is located in exon 5 (coding exon 5) of the XPNPEP2 gene. This alteration results from a G to A substitution at nucleotide position 340, causing the aspartic acid (D) at amino acid position 114 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.55
BayesDel_addAF
Benign
-0.097
T
BayesDel_noAF
Uncertain
-0.010
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.36
T;T
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Pathogenic
0.66
D
MetaRNN
Uncertain
0.66
D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.5
.;H
PrimateAI
Uncertain
0.52
T
PROVEAN
Pathogenic
-5.0
D;D
REVEL
Pathogenic
0.79
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
.;D
Vest4
0.36
MutPred
0.87
Gain of MoRF binding (P = 0.0479);Gain of MoRF binding (P = 0.0479);
MVP
0.57
MPC
0.35
ClinPred
0.96
D
GERP RS
5.4
Varity_R
0.79
gMVP
0.96

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: rs774159719; hg19: chrX-128880253; COSMIC: COSV64367795; API