rs17107542

Positions:

• chr14-78424708-T-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001330195.2(NRXN3):​c.757+126848T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.101 in 152,218 control chromosomes in the GnomAD database, including 1,048 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.10 (1048 hom., cov: 33)
• Consequence: NRXN3 NM_001330195.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.03

Genes affected

NRXN3 (HGNC:8010): (neurexin 3) This gene encodes a member of a family of proteins that function in the nervous system as receptors and cell adhesion molecules. Extensive alternative splicing and the use of alternative promoters results in multiple transcript variants and protein isoforms for this gene, but the full-length nature of many of these variants has not been determined. Transcripts that initiate from an upstream promoter encode alpha isoforms, which contain epidermal growth factor-like (EGF-like) sequences and laminin G domains. Transcripts initiating from the downstream promoter encode beta isoforms, which lack EGF-like sequences. Genetic variation at this locus has been associated with a range of behavioral phenotypes, including alcohol dependence and autism spectrum disorder. [provided by RefSeq, Dec 2012]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.66).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.17 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NRXN3	NM_001330195.2	c.757+126848T>A		intron_variant		ENST00000335750.7	NP_001317124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NRXN3	ENST00000335750.7	c.757+126848T>A		intron_variant		5	NM_001330195.2	ENSP00000338349	P1

Frequencies

GnomAD3 genomes AF: 0.101 AC: 15368 AN: 152098 Hom.: 1038 Cov.: 33

Gnomad AFR AF: 0.173

Gnomad AMI AF: 0.0757

Gnomad AMR AF: 0.158

Gnomad ASJ AF: 0.0643

Gnomad EAS AF: 0.0687

Gnomad SAS AF: 0.0805

Gnomad FIN AF: 0.0808

Gnomad MID AF: 0.0538

Gnomad NFE AF: 0.0548

Gnomad OTH AF: 0.0813

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.101 AC: 15411 AN: 152218 Hom.: 1048 Cov.: 33 AF XY: 0.103 AC XY: 7644 AN XY: 74440

Gnomad4 AFR AF: 0.173

Gnomad4 AMR AF: 0.158

Gnomad4 ASJ AF: 0.0643

Gnomad4 EAS AF: 0.0686

Gnomad4 SAS AF: 0.0808

Gnomad4 FIN AF: 0.0808

Gnomad4 NFE AF: 0.0548

Gnomad4 OTH AF: 0.0871

Alfa AF: 0.0848 Hom.: 83

Bravo AF: 0.108

Asia WGS AF: 0.0830 AC: 288 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.66
CADD	Benign	7.6
DANN	Benign	0.74

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

Other links and lift over

dbSNP: rs17107542; hg19: chr14-78891051;