2-50053311-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001330078.2(NRXN1):​c.4088C>T​(p.Ala1363Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,696 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NRXN1
NM_001330078.2 missense

Scores

1
4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.04
Variant links:
Genes affected
NRXN1 (HGNC:8008): (neurexin 1) This gene encodes a single-pass type I membrane protein that belongs to the neurexin family. Neurexins are cell-surface receptors that bind neuroligins to form Ca(2+)-dependent neurexin/neuroligin complexes at synapses in the central nervous system. This complex is required for efficient neurotransmission and is involved in the formation of synaptic contacts. Three members of this gene family have been studied in detail and are estimated to generate over 3,000 variants through the use of two alternative promoters (alpha and beta) and extensive alternative splicing in each family member. Recently, a third promoter (gamma) was identified for this gene in the 3' region. Mutations in this gene are associated with Pitt-Hopkins-like syndrome-2 and may contribute to susceptibility to schizophrenia. [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.17065758).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NRXN1NM_001330078.2 linkuse as main transcriptc.4088C>T p.Ala1363Val missense_variant 21/23 ENST00000401669.7 NP_001317007.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NRXN1ENST00000401669.7 linkuse as main transcriptc.4088C>T p.Ala1363Val missense_variant 21/235 NM_001330078.2 ENSP00000385017 A1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251130
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135740
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:
0.0000462
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461696
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727144
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:
0.0000187
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Uncertain
0.015
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.012
.;T;.;.;.;.;.;.;T;.
Eigen
Benign
-0.11
Eigen_PC
Benign
0.13
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D;D;D;D;D;D;D;D;D;D
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.17
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
0.0
.;.;.;N;.;.;.;.;.;.
MutationTaster
Benign
0.86
N;N;N;N;N;N;N;N
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-0.33
.;N;N;N;N;.;N;.;N;.
REVEL
Benign
0.15
Sift
Benign
0.18
.;T;T;T;T;.;T;.;T;.
Sift4G
Benign
0.076
T;T;T;T;T;D;T;T;T;T
Polyphen
0.076
.;.;B;.;.;.;.;.;.;.
Vest4
0.24
MutPred
0.18
.;Gain of MoRF binding (P = 0.091);.;.;.;.;.;.;.;.;
MVP
0.26
MPC
0.79
ClinPred
0.40
T
GERP RS
5.5
Varity_R
0.13
gMVP
0.47

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: rs781551221; hg19: chr2-50280449; API