rs80293130

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001330078.2(NRXN1):ā€‹c.2459G>Cā€‹(p.Ser820Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S820N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

NRXN1
NM_001330078.2 missense

Scores

1
4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.31
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.27290827).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NRXN1NM_001330078.2 linkuse as main transcriptc.2459G>C p.Ser820Thr missense_variant 13/23 ENST00000401669.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NRXN1ENST00000401669.7 linkuse as main transcriptc.2459G>C p.Ser820Thr missense_variant 13/235 NM_001330078.2 A1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000403
AC:
1
AN:
248062
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134576
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:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1460920
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726702
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000827
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.095
BayesDel_addAF
Benign
-0.024
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.26
.;T;.;.;T;.;.;T
Eigen
Benign
-0.048
Eigen_PC
Benign
0.16
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.89
D;D;D;D;D;D;D;D
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.27
T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.54
T
MutationAssessor
Benign
0.90
.;L;.;.;.;.;.;.
MutationTaster
Benign
0.82
D;D;D;D;D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-1.7
.;N;N;N;.;.;.;.
REVEL
Uncertain
0.31
Sift
Benign
0.12
.;T;T;T;.;.;.;.
Sift4G
Benign
0.27
T;T;T;T;T;T;T;T
Polyphen
0.0010
.;.;B;.;.;.;.;.
Vest4
0.42
MutPred
0.58
.;Gain of ubiquitination at K822 (P = 0.0762);.;Gain of ubiquitination at K822 (P = 0.0762);.;.;.;.;
MVP
0.12
MPC
0.23
ClinPred
0.30
T
GERP RS
5.7
Varity_R
0.31
gMVP
0.38

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: rs80293130; hg19: chr2-50733671; API