rs10507279

Positions:

• chr12-117342469-G-A

Variant summary

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

The NM_000620.5(NOS1):​c.-420-10980C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.112 in 152,114 control chromosomes in the GnomAD database, including 1,336 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 0.11 (1336 hom., cov: 31)
• Consequence: NOS1 NM_000620.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.117

Genes affected

NOS1 (HGNC:7872): (nitric oxide synthase 1) The protein encoded by this gene belongs to the family of nitric oxide synthases, which synthesize nitric oxide from L-arginine. Nitric oxide is a reactive free radical, which acts as a biologic mediator in several processes, including neurotransmission, and antimicrobial and antitumoral activities. In the brain and peripheral nervous system, nitric oxide displays many properties of a neurotransmitter, and has been implicated in neurotoxicity associated with stroke and neurodegenerative diseases, neural regulation of smooth muscle, including peristalsis, and penile erection. This protein is ubiquitously expressed, with high level of expression in skeletal muscle. Multiple transcript variants that differ in the 5' UTR have been described for this gene but the full-length nature of these transcripts is not known. Additionally, alternatively spliced transcript variants encoding different isoforms (some testis-specific) have been found for this gene.[provided by RefSeq, Feb 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.164 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NOS1	NM_000620.5	c.-420-10980C>T		intron_variant		ENST00000317775.11	NP_000611.1
NOS1	NM_001204218.2	c.-420-10980C>T		intron_variant			NP_001191147.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NOS1	ENST00000317775.11	c.-420-10980C>T		intron_variant		1	NM_000620.5	ENSP00000320758	P1
NOS1	ENST00000618760.4	c.-420-10980C>T		intron_variant		5		ENSP00000477999
NOS1	ENST00000549189.1	n.471-10980C>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes AF: 0.112 AC: 17056 AN: 151996 Hom.: 1337 Cov.: 31

Gnomad AFR AF: 0.0285

Gnomad AMI AF: 0.0757

Gnomad AMR AF: 0.0823

Gnomad ASJ AF: 0.184

Gnomad EAS AF: 0.000385

Gnomad SAS AF: 0.0638

Gnomad FIN AF: 0.188

Gnomad MID AF: 0.108

Gnomad NFE AF: 0.167

Gnomad OTH AF: 0.111

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

GnomAD4 genome AF: 0.112 AC: 17053 AN: 152114 Hom.: 1336 Cov.: 31 AF XY: 0.111 AC XY: 8267 AN XY: 74362

Gnomad4 AFR AF: 0.0284

Gnomad4 AMR AF: 0.0820

Gnomad4 ASJ AF: 0.184

Gnomad4 EAS AF: 0.000386

Gnomad4 SAS AF: 0.0640

Gnomad4 FIN AF: 0.188

Gnomad4 NFE AF: 0.167

Gnomad4 OTH AF: 0.109

Alfa AF: 0.140 Hom.: 284

Bravo AF: 0.103

Asia WGS AF: 0.0290 AC: 103 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	5.5
DANN	Benign	0.38

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: rs10507279; hg19: chr12-117780274;