X-5892974-C-T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_181332.3(NLGN4X):​c.2294G>A​(p.Arg765His) variant causes a missense change. The variant allele was found at a frequency of 0.0000141 in 1,209,347 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. R765R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 21)
Exomes 𝑓: 0.000015 ( 0 hom. 4 hem. )

Consequence

NLGN4X
NM_181332.3 missense

Scores

3
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 6.80

Publications

5 publications found
Variant links:
Genes affected
NLGN4X (HGNC:14287): (neuroligin 4 X-linked) This gene encodes a member of the type-B carboxylesterase/lipase protein family. The encoded protein belongs to 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. The encoded protein interacts with discs large homolog 4 (DLG4). Mutations in this gene have been associated with autism and Asperger syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]
NLGN4X Gene-Disease associations (from GenCC):
  • X-linked complex neurodevelopmental disorder
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • autism, susceptibility to, X-linked 2
    Inheritance: XL Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, 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.

BS2
High Hemizygotes in GnomAdExome4 at 4 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NLGN4XNM_181332.3 linkc.2294G>A p.Arg765His missense_variant Exon 6 of 6 ENST00000381095.8 NP_851849.1 Q8N0W4-1A0A024RBV0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NLGN4XENST00000381095.8 linkc.2294G>A p.Arg765His missense_variant Exon 6 of 6 1 NM_181332.3 ENSP00000370485.3 Q8N0W4-1

Frequencies

GnomAD3 genomes
AF:
0.00000900
AC:
1
AN:
111079
Hom.:
0
Cov.:
21
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:
0.0000189
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000545
AC:
1
AN:
183525
AF XY:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000146
AC:
16
AN:
1098268
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
4
AN XY:
363622
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26403
American (AMR)
AF:
0.00
AC:
0
AN:
35207
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19386
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30206
South Asian (SAS)
AF:
0.0000185
AC:
1
AN:
54149
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40534
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4137
European-Non Finnish (NFE)
AF:
0.0000166
AC:
14
AN:
842148
Other (OTH)
AF:
0.0000217
AC:
1
AN:
46098
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome 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
GnomAD4 genome
AF:
0.00000900
AC:
1
AN:
111079
Hom.:
0
Cov.:
21
AF XY:
0.00
AC XY:
0
AN XY:
33279
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30473
American (AMR)
AF:
0.00
AC:
0
AN:
10424
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2645
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3524
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2583
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5984
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
240
European-Non Finnish (NFE)
AF:
0.0000189
AC:
1
AN:
53022
Other (OTH)
AF:
0.00
AC:
0
AN:
1498
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
May 15, 2023
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Autism, susceptibility to, X-linked 2 Uncertain:1
Jul 23, 2021
Institute of Human Genetics, University of Goettingen
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.25
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.51
D;D;D;.;D
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.99
.;D;.;D;.
M_CAP
Benign
0.037
D
MetaRNN
Uncertain
0.69
D;D;D;D;D
MetaSVM
Benign
-0.83
T
MutationAssessor
Uncertain
2.1
M;M;M;.;M
PhyloP100
6.8
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-3.1
D;.;D;.;D
REVEL
Uncertain
0.37
Sift
Uncertain
0.0010
D;.;D;.;D
Sift4G
Uncertain
0.0020
D;D;D;.;D
Polyphen
1.0
D;D;D;D;D
Vest4
0.40
MVP
0.57
MPC
2.4
ClinPred
0.87
D
GERP RS
3.8
Varity_R
0.45
gMVP
0.84
Mutation Taster
=86/14
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: rs1323836608; hg19: chrX-5811015; COSMIC: COSV52027286; API