X-71147775-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BP4_Strong

The NM_181303.2(NLGN3):c.26C>T(p.Ser9Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000746 in 1,207,227 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.0000046 ( 0 hom. 3 hem. )

Consequence

NLGN3
NM_181303.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.325

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 links:

LOC124905197 (HGNC:):

LOC124905197 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2

Missense variant where missense usually causes diseases, NLGN3

BP4

Computational evidence support a benign effect (MetaRNN=0.048222244).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NLGN3	NM_181303.2 linkuse as main transcript	c.26C>T	p.Ser9Leu	missense_variant	2/8	ENST00000358741.4
LOC124905197	XR_007068262.1 linkuse as main transcript	n.1106+2508G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NLGN3	ENST00000358741.4 linkuse as main transcript	c.26C>T	p.Ser9Leu	missense_variant	2/8	5	NM_181303.2	A1	Q9NZ94-1

Frequencies

GnomAD3 genomes

AF:

0.0000357

AC:

AN:

111922

Hom.:

Cov.:

AF XY:

0.0000293

AC XY:

AN XY:

34096

show subpopulations

Gnomad AFR

AF:

0.0000649

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000188

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000457

AC:

AN:

1095253

Hom.:

Cov.:

AF XY:

0.00000830

AC XY:

AN XY:

361329

show subpopulations

Gnomad4 AFR exome

AF:

0.0000379

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:

0.00

Gnomad4 NFE exome

AF:

0.00000238

Gnomad4 OTH exome

AF:

0.0000436

GnomAD4 genome

AF:

0.0000357

AC:

AN:

111974

Hom.:

Cov.:

AF XY:

0.0000293

AC XY:

AN XY:

34158

show subpopulations

Gnomad4 AFR

AF:

0.0000648

Gnomad4 AMR

AF:

0.000188

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Jul 29, 2019

Variant summary: NLGN3 c.26C>T (p.Ser9Leu) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant was absent in 171937 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, c.26C>T has not been found in individuals affected with Autism Susceptibility and no experimental evidence demonstrating an impact on protein function has been reported. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.48

Cadd

Benign

Dann

Uncertain

0.98

FATHMM_MKL

Benign

0.50

LIST_S2

Benign

0.80

T;T;T;T

M_CAP

Benign

0.014

MetaRNN

Benign

0.048

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

N;.;N;N

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.31

PROVEAN

Benign

0.10

N;N;N;N

REVEL

Benign

0.056

Sift

Benign

0.65

T;T;T;T

Sift4G

Benign

0.36

T;T;T;T

Polyphen

0.0

.;.;B;.

Vest4

0.21

MutPred

0.29

Loss of disorder (P = 0.0146);Loss of disorder (P = 0.0146);Loss of disorder (P = 0.0146);Loss of disorder (P = 0.0146);

MVP

0.64

MPC

0.60

ClinPred

0.061

GERP RS

1.3

Varity_R

0.048

gMVP

0.57

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over