14-79470621-T-C

Position:

• chr14-79470621-T-C

Variant summary

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

The NM_001330195.2(NRXN3):​c.3444+3219T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.256 in 152,022 control chromosomes in the GnomAD database, including 5,762 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 0.26 (5762 hom., cov: 32)
• Consequence: NRXN3 NM_001330195.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.00

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=-0.9).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.392 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NRXN3	NM_001330195.2	c.3444+3219T>C		intron_variant		ENST00000335750.7	NP_001317124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NRXN3	ENST00000335750.7	c.3444+3219T>C		intron_variant		5	NM_001330195.2	ENSP00000338349	P1

Frequencies

GnomAD3 genomes AF: 0.256 AC: 38901 AN: 151904 Hom.: 5746 Cov.: 32

Gnomad AFR AF: 0.397

Gnomad AMI AF: 0.122

Gnomad AMR AF: 0.227

Gnomad ASJ AF: 0.123

Gnomad EAS AF: 0.000773

Gnomad SAS AF: 0.116

Gnomad FIN AF: 0.234

Gnomad MID AF: 0.165

Gnomad NFE AF: 0.220

Gnomad OTH AF: 0.227

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

GnomAD4 genome AF: 0.256 AC: 38945 AN: 152022 Hom.: 5762 Cov.: 32 AF XY: 0.252 AC XY: 18708 AN XY: 74294

Gnomad4 AFR AF: 0.397

Gnomad4 AMR AF: 0.227

Gnomad4 ASJ AF: 0.123

Gnomad4 EAS AF: 0.000775

Gnomad4 SAS AF: 0.115

Gnomad4 FIN AF: 0.234

Gnomad4 NFE AF: 0.220

Gnomad4 OTH AF: 0.223

Alfa AF: 0.220 Hom.: 1165

Bravo AF: 0.263

Asia WGS AF: 0.0830 AC: 291 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	1.4
DANN	Benign	0.24

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: rs10150332; hg19: chr14-79936964;