X-71169793-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_181303.2(NLGN3):​c.2243G>A​(p.Arg748Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000183 in 1,095,333 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R748L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )
Failed GnomAD Quality Control

Consequence

NLGN3
NM_181303.2 missense

Scores

1
7
9

Clinical Significance

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

Conservation

PhyloP100: 5.77

Publications

0 publications found
Variant links:
Genes affected
NLGN3 (HGNC:14289): (neuroligin 3) This gene encodes a member of a family of neuronal cell surface proteins. Members of this family may act as splice site-specific ligands for beta-neurexins and may be involved in the formation and remodeling of central nervous system synapses. Mutations in this gene may be associated with autism and Asperger syndrome. Multiple transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Oct 2009]
NLGN3 Gene-Disease associations (from GenCC):
  • autism, susceptibility to, X-linked 1
    Inheritance: Unknown, XL Classification: STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
  • X-linked complex neurodevelopmental disorder
    Inheritance: XL Classification: MODERATE Submitted by: Illumina, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.27148575).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NLGN3NM_181303.2 linkc.2243G>A p.Arg748Gln missense_variant Exon 8 of 8 ENST00000358741.4 NP_851820.1 Q9NZ94-1X5DNV3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NLGN3ENST00000358741.4 linkc.2243G>A p.Arg748Gln missense_variant Exon 8 of 8 5 NM_181303.2 ENSP00000351591.4 Q9NZ94-1
NLGN3ENST00000685718.1 linkn.*1590G>A non_coding_transcript_exon_variant Exon 8 of 8 ENSP00000510514.1 A0A8I5QJU7
NLGN3ENST00000685718.1 linkn.*1590G>A 3_prime_UTR_variant Exon 8 of 8 ENSP00000510514.1 A0A8I5QJU7

Frequencies

GnomAD3 genomes
AF:
0.00000893
AC:
1
AN:
111990
Hom.:
0
Cov.:
22
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
173379
AF XY:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000183
AC:
2
AN:
1095333
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
361005
show subpopulations
African (AFR)
AF:
0.0000379
AC:
1
AN:
26365
American (AMR)
AF:
0.00
AC:
0
AN:
34959
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19274
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30129
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53746
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40139
Middle Eastern (MID)
AF:
0.000244
AC:
1
AN:
4100
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
840682
Other (OTH)
AF:
0.00
AC:
0
AN:
45939
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
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
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000893
AC:
1
AN:
111990
Hom.:
0
Cov.:
22
AF XY:
0.0000293
AC XY:
1
AN XY:
34152
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30819
American (AMR)
AF:
0.00
AC:
0
AN:
10678
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2643
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3550
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2686
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6121
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
237
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53065
Other (OTH)
AF:
0.00
AC:
0
AN:
1509

Age Distribution

Genome Hom
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:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jun 02, 2016
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Mar 21, 2022
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.092
T
BayesDel_noAF
Benign
-0.37
CADD
Uncertain
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.25
.;.;T
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Benign
0.084
D
MetaRNN
Benign
0.27
T;T;T
MetaSVM
Uncertain
-0.20
T
MutationAssessor
Uncertain
2.4
.;.;M
PhyloP100
5.8
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-1.9
N;N;N
REVEL
Benign
0.23
Sift
Uncertain
0.0060
D;D;D
Sift4G
Uncertain
0.030
D;D;D
Polyphen
0.84, 0.76
.;P;P
Vest4
0.32
MutPred
0.23
.;.;Gain of glycosylation at P744 (P = 0.1132);
MVP
0.87
MPC
0.57
ClinPred
0.92
D
GERP RS
4.2
Varity_R
0.37
gMVP
0.52
Mutation Taster
=77/23
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: rs748757954; hg19: chrX-70389643; COSMIC: COSV62442318; COSMIC: COSV62442318; API