Variant 2-50346870-GCGCCGCCGCCGCCGCCGC-GCGCCGC details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2

The NM_001330092.2(NRXN1):c.68_79delGCGGCGGCGGCG(p.Gly23_Gly26del) variant causes a disruptive inframe deletion change. The variant allele was found at a frequency of 0.000143 in 1,366,790 control chromosomes in the GnomAD database, including 12 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00019 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 11 hom. )

Consequence

NRXN1
NM_001330092.2 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 3.96

Variant links:

Genes affected

NRXN1 (HGNC:8008): (neurexin 1) This gene encodes a single-pass type I membrane protein that belongs to the neurexin family. Neurexins are cell-surface receptors that bind neuroligins to form Ca(2+)-dependent neurexin/neuroligin complexes at synapses in the central nervous system. This complex is required for efficient neurotransmission and is involved in the formation of synaptic contacts. Three members of this gene family have been studied in detail and are estimated to generate over 3,000 variants through the use of two alternative promoters (alpha and beta) and extensive alternative splicing in each family member. Recently, a third promoter (gamma) was identified for this gene in the 3' region. Mutations in this gene are associated with Pitt-Hopkins-like syndrome-2 and may contribute to susceptibility to schizophrenia. [provided by RefSeq, Aug 2016]

NRXN1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6

Variant 2-50346870-GCGCCGCCGCCGC-G is Benign according to our data. Variant chr2-50346870-GCGCCGCCGCCGC-G is described in ClinVar as [Likely_benign]. Clinvar id is 1180179.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000186 (28/150482) while in subpopulation EAS AF= 0.00118 (6/5078). AF 95% confidence interval is 0.000514. There are 1 homozygotes in gnomad4. There are 15 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 11 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRXN1	NM_001330078.2 link	c.3365-109912_3365-109901delGCGGCGGCGGCG		intron_variant	Intron 17 of 22	ENST00000401669.7	NP_001317007.1	E7ERL8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRXN1	ENST00000401669.7 link	c.3365-109912_3365-109901delGCGGCGGCGGCG		intron_variant	Intron 17 of 22	5	NM_001330078.2	ENSP00000385017.2		E7ERL8

Frequencies

GnomAD3 genomes

AF:

0.000180

AC:

AN:

150382

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000243

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000397

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00118

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000593

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000440

AC:

AN:

74950

Hom.:

AF XY:

0.000429

AC XY:

AN XY:

44242

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00133

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0107

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000290

Gnomad OTH exome

AF:

0.000540

GnomAD4 exome

AF:

0.000137

AC:

167

AN:

1216308

Hom.:

AF XY:

0.000150

AC XY:

AN XY:

594992

show subpopulations

Gnomad4 AFR exome

AF:

0.000196

Gnomad4 AMR exome

AF:

0.000641

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00164

Gnomad4 SAS exome

AF:

0.000202

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000797

Gnomad4 OTH exome

AF:

0.000325

GnomAD4 genome

AF:

0.000186

AC:

AN:

150482

Hom.:

Cov.:

AF XY:

0.000204

AC XY:

AN XY:

73468

show subpopulations

Gnomad4 AFR

AF:

0.000266

Gnomad4 AMR

AF:

0.000397

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00118

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000593

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000159

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Jun 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

NRXN1: BS2 -

Mar 03, 2015

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

NRXN1-related disorder

Benign:1

Feb 21, 2020

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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