1-162070223-C-T

Variant names:

• chr1-162070223-C-T
• rs1691631574
• NM_014697.3:c.46C>T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_014697.3(NOS1AP):​c.46C>T​(p.Leu16Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 33)
• Consequence: NOS1AP NM_014697.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.39

Genes affected

NOS1AP (HGNC:16859): (nitric oxide synthase 1 adaptor protein) This gene encodes a cytosolic protein that binds to the signaling molecule, neuronal nitric oxide synthase (nNOS). This protein has a C-terminal PDZ-binding domain that mediates interactions with nNOS and an N-terminal phosphotyrosine binding (PTB) domain that binds to the small monomeric G protein, Dexras1. Studies of the related mouse and rat proteins have shown that this protein functions as an adapter protein linking nNOS to specific targets, such as Dexras1 and the synapsins. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Sep 2009]

ACMG classification

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=-0.4).
• BP7: Synonymous conserved (PhyloP=1.39 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOS1AP	NM_014697.3	c.46C>T	p.Leu16Leu	synonymous_variant	Exon 1 of 10	ENST00000361897.10	NP_055512.1
NOS1AP	NM_001164757.2	c.46C>T	p.Leu16Leu	synonymous_variant	Exon 1 of 10		NP_001158229.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOS1AP	ENST00000361897.10	c.46C>T	p.Leu16Leu	synonymous_variant	Exon 1 of 10	1	NM_014697.3	ENSP00000355133.5
NOS1AP	ENST00000530878.5	c.46C>T	p.Leu16Leu	synonymous_variant	Exon 1 of 10	1		ENSP00000431586.1
NOS1AP	ENST00000430120.3	n.46C>T		non_coding_transcript_exon_variant	Exon 1 of 11	1		ENSP00000396713.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.40
CADD	Benign	15
DANN	Benign	0.96

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: rs1691631574; hg19: chr1-162040013;