3-101801635-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_145037.4(NXPE3):ā€‹c.494A>Gā€‹(p.Gln165Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

NXPE3
NM_145037.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.98
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.06395319).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NXPE3NM_145037.4 linkuse as main transcriptc.494A>G p.Gln165Arg 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.494A>G p.Gln165Arg missense_variant 5/81 NM_145037.4 ENSP00000273347.5 Q969Y0

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727246
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 02, 2023The c.494A>G (p.Q165R) alteration is located in exon 5 (coding exon 2) of the NXPE3 gene. This alteration results from a A to G substitution at nucleotide position 494, causing the glutamine (Q) at amino acid position 165 to be replaced by an arginine (R). 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
0.065
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
17
DANN
Benign
0.53
DEOGEN2
Benign
0.025
T;T;T
Eigen
Benign
-0.21
Eigen_PC
Benign
0.023
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.80
.;.;T
M_CAP
Benign
0.0036
T
MetaRNN
Benign
0.064
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
L;L;L
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-0.35
N;N;N
REVEL
Benign
0.068
Sift
Benign
0.86
T;T;T
Sift4G
Benign
0.81
T;T;T
Polyphen
0.0070
B;B;B
Vest4
0.12
MutPred
0.40
Gain of MoRF binding (P = 0.0436);Gain of MoRF binding (P = 0.0436);Gain of MoRF binding (P = 0.0436);
MVP
0.055
ClinPred
0.54
D
GERP RS
5.8
Varity_R
0.088
gMVP
0.35

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-101520479; API