rs772811573

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_015080.4(NRXN2):​c.670C>T​(p.Pro224Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000419 in 1,457,412 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

NRXN2
NM_015080.4 missense

Scores

2
3
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.86

Publications

2 publications found
Variant links:
Genes affected
NRXN2 (HGNC:8009): (neurexin 2) This gene encodes a member of the neurexin gene family. The products of these genes function as cell adhesion molecules and receptors in the vertebrate nervous system. These genes utilize two promoters. The majority of transcripts are produced from the upstream promoter and encode alpha-neurexin isoforms while a smaller number of transcripts are produced from the downstream promoter and encode beta-neuresin isoforms. The alpha-neurexins contain epidermal growth factor-like (EGF-like) sequences and laminin G domains, and have been shown to interact with neurexophilins. The beta-neurexins lack EGF-like sequences and contain fewer laminin G domains than alpha-neurexins. Alternative splicing and the use of alternative promoters may generate thousands of transcript variants (PMID: 12036300, PMID: 11944992).[provided by RefSeq, Jun 2010]
NRXN2 Gene-Disease associations (from GenCC):
  • autism
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: G2P, Ambry Genetics
  • neurodevelopmental disorder
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.046080053).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NRXN2NM_015080.4 linkc.670C>T p.Pro224Ser missense_variant Exon 2 of 23 ENST00000265459.11 NP_055895.1 Q9P2S2-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NRXN2ENST00000265459.11 linkc.670C>T p.Pro224Ser missense_variant Exon 2 of 23 5 NM_015080.4 ENSP00000265459.5 Q9P2S2-1
NRXN2ENST00000704782.1 linkc.670C>T p.Pro224Ser missense_variant Exon 1 of 22 ENSP00000516031.1 A0A994J5C3
NRXN2ENST00000704781.1 linkc.670C>T p.Pro224Ser missense_variant Exon 1 of 22 ENSP00000516029.1 A0A994J4N8

Frequencies

GnomAD3 genomes
AF:
0.0000724
AC:
11
AN:
151958
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000682
AC:
5
AN:
73352
AF XY:
0.0000730
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000747
Gnomad OTH exome
AF:
0.000437
GnomAD4 exome
AF:
0.0000391
AC:
51
AN:
1305346
Hom.:
0
Cov.:
29
AF XY:
0.0000390
AC XY:
25
AN XY:
640566
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
25918
American (AMR)
AF:
0.00
AC:
0
AN:
27344
Ashkenazi Jewish (ASJ)
AF:
0.0000464
AC:
1
AN:
21558
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30110
South Asian (SAS)
AF:
0.000157
AC:
11
AN:
70278
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
32110
Middle Eastern (MID)
AF:
0.000263
AC:
1
AN:
3802
European-Non Finnish (NFE)
AF:
0.0000336
AC:
35
AN:
1040306
Other (OTH)
AF:
0.0000556
AC:
3
AN:
53920
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000658
AC:
10
AN:
152066
Hom.:
0
Cov.:
34
AF XY:
0.0000404
AC XY:
3
AN XY:
74340
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41532
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10522
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.000132
AC:
9
AN:
67942
Other (OTH)
AF:
0.00
AC:
0
AN:
2106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.530
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000155
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.000234
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:2
Jul 22, 2015
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dec 11, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.670C>T (p.P224S) alteration is located in exon 2 (coding exon 1) of the NRXN2 gene. This alteration results from a C to T substitution at nucleotide position 670, causing the proline (P) at amino acid position 224 to be replaced by a serine (S). 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
0.085
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
22
DANN
Benign
0.94
DEOGEN2
Benign
0.0037
T;.;T;.
Eigen
Benign
-0.57
Eigen_PC
Benign
-0.39
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Uncertain
0.95
.;D;D;D
M_CAP
Pathogenic
0.74
D
MetaRNN
Benign
0.046
T;T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
-0.26
N;N;N;.
PhyloP100
2.9
PrimateAI
Pathogenic
0.83
D
PROVEAN
Benign
0.29
N;N;N;N
REVEL
Benign
0.098
Sift
Benign
0.61
T;T;T;T
Sift4G
Uncertain
0.0050
D;D;D;D
Polyphen
0.073
B;B;B;.
Vest4
0.17
MutPred
0.50
Gain of glycosylation at P224 (P = 0.0225);Gain of glycosylation at P224 (P = 0.0225);Gain of glycosylation at P224 (P = 0.0225);Gain of glycosylation at P224 (P = 0.0225);
MVP
0.082
MPC
0.62
ClinPred
0.058
T
GERP RS
3.3
PromoterAI
0.034
Neutral
Varity_R
0.073
gMVP
0.31
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs772811573; hg19: chr11-64480502; API