rs1057518563
Positions:
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP7
The NM_001330078.2(NRXN1):c.150C>T(p.Cys50=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000706 in 1,416,126 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 7.1e-7 ( 0 hom. )
Consequence
NRXN1
NM_001330078.2 synonymous
NM_001330078.2 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.0650
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -1 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP7
?
Synonymous conserved (PhyloP=-0.065 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
NRXN1 | NM_001330078.2 | c.150C>T | p.Cys50= | synonymous_variant | 2/23 | ENST00000401669.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
NRXN1 | ENST00000401669.7 | c.150C>T | p.Cys50= | synonymous_variant | 2/23 | 5 | NM_001330078.2 | A1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome AF: 7.06e-7 AC: 1AN: 1416126Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 700358
GnomAD4 exome
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1416126
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31
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700358
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GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
Bravo
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Pitt-Hopkins-like syndrome 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Oct 30, 2016 | In summary, this is a novel silent change with uncertain impact on splicing. It has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may alter RNA splicing, but this prediction has not been confirmed by published transcriptional studies. While this variant is not present in population databases, the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has not been reported in the literature in an individual with a NRXN1-related disease. This sequence change affects codon 50 of the NRXN1 mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the NRXN1 protein. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at