chr3-101801842-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_145037.4(NXPE3):​c.701C>T​(p.Pro234Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000137 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

NXPE3
NM_145037.4 missense

Scores

4
8
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.05
Variant links:
Genes affected
NXPE3 (HGNC:28238): (neurexophilin and PC-esterase domain family member 3) This gene encodes a member of the neurexophilin family of neuropeptide-like glycoproteins. The encoded protein contains a variable N-terminal domain, a highly conserved neurexophilin and PC-esterase (NXPE) central domain, a short linker region, and a cysteine-rich C-terminal domain. This protein binds alpha neurexins, a group of presynaptic transmembrane receptors that promote adhesion between dendrites and axons. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.753

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NXPE3NM_145037.4 linkuse as main transcriptc.701C>T p.Pro234Leu missense_variant 5/8 ENST00000273347.10 NP_659474.1 Q969Y0

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NXPE3ENST00000273347.10 linkuse as main transcriptc.701C>T p.Pro234Leu missense_variant 5/81 NM_145037.4 ENSP00000273347.5 Q969Y0

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251292
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135854
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:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461884
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727244
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:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000468
Hom.:
0

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 GeneticsNov 12, 2024The c.701C>T (p.P234L) alteration is located in exon 5 (coding exon 2) of the NXPE3 gene. This alteration results from a C to T substitution at nucleotide position 701, causing the proline (P) at amino acid position 234 to be replaced by a leucine (L). 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
Benign
0.14
BayesDel_addAF
Uncertain
0.033
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
T;T;T
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.88
.;.;D
M_CAP
Benign
0.043
D
MetaRNN
Pathogenic
0.75
D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
2.0
M;M;M
PrimateAI
Uncertain
0.72
T
PROVEAN
Pathogenic
-6.3
D;D;D
REVEL
Uncertain
0.32
Sift
Uncertain
0.0060
D;D;D
Sift4G
Uncertain
0.011
D;D;D
Polyphen
1.0
D;D;D
Vest4
0.63
MutPred
0.45
Gain of sheet (P = 0.1945);Gain of sheet (P = 0.1945);Gain of sheet (P = 0.1945);
MVP
0.28
ClinPred
0.98
D
GERP RS
6.0
Varity_R
0.40
gMVP
0.74

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: rs1399149726; hg19: chr3-101520686; API