3-173604864-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP2 PP3_Moderate

The NM_001365925.2(NLGN1):c.266C>T(p.Pro89Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as risk factor (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NLGN1 NM_001365925.2 missense
• Clinical Significance: risk factor no assertion criteria provided O:1
• Conservation: PhyloP100: 7.57

Genes affected

NLGN1 (HGNC:14291): (neuroligin 1) 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. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, NLGN1
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.934

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NLGN1	NM_001365925.2	c.266C>T	p.Pro89Leu	missense_variant	2/7	ENST00000695368.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NLGN1	ENST00000695368.1	c.266C>T	p.Pro89Leu	missense_variant	2/7		NM_001365925.2	A1
NLGN1	ENST00000415045.2	c.266C>T	p.Pro89Leu	missense_variant	2/8	1
NLGN1	ENST00000361589.8	c.266C>T	p.Pro89Leu	missense_variant	2/6	1		P2
NLGN1	ENST00000457714.5	c.266C>T	p.Pro89Leu	missense_variant	3/7	1		P2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: risk factor

Submissions summary: Other:1

Revision: no assertion criteria provided

Submissions by phenotype

Autism, susceptibility to, 20 Other:1

risk factor, no assertion criteria provided

literature only

OMIM

May 13, 2020

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.48	D
BayesDel_noAF	Pathogenic	0.45
Cadd	Pathogenic	29
Dann	Uncertain	1.0
Eigen	Pathogenic	1.0
Eigen_PC	Pathogenic	0.95
FATHMM_MKL	Pathogenic	0.98	D
M_CAP	Pathogenic	0.30	D
MetaRNN	Pathogenic	0.93	D;D;D
MetaSVM	Pathogenic	0.99	D
MutationAssessor	Pathogenic	3.6	H;H;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.71	T
PROVEAN	Pathogenic	-8.5	D;D;D
REVEL	Pathogenic	0.88
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		1.0	D;D;.
Vest4		0.90
MutPred		0.75		Loss of catalytic residue at P88 (P = 0.0107);Loss of catalytic residue at P88 (P = 0.0107);Loss of catalytic residue at P88 (P = 0.0107);
MVP		0.94
MPC		1.1
ClinPred		1.0	D
GERP RS		5.6
gMVP		0.86

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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

Other links and lift over

dbSNP: rs1751123722; hg19: chr3-173322654;