12-117220098-C-T

Position:

chr12-117220098-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2

The NM_000620.5(NOS1):c.4147G>A(p.Gly1383Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000931 in 1,611,272 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

NOS1
NM_000620.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.15

Variant links:

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]

NOS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2

Missense variant where missense usually causes diseases, NOS1

BS2

High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
NOS1	NM_000620.5 linkuse as main transcript	c.4147G>A	p.Gly1383Ser	missense_variant	27/29	ENST00000317775.11
NOS1	NM_001204218.2 linkuse as main transcript	c.4249G>A	p.Gly1417Ser	missense_variant	28/30
NOS1	NM_001204213.2 linkuse as main transcript	c.3139G>A	p.Gly1047Ser	missense_variant	26/28
NOS1	NM_001204214.2 linkuse as main transcript	c.3139G>A	p.Gly1047Ser	missense_variant	26/28

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOS1	ENST00000317775.11 linkuse as main transcript	c.4147G>A	p.Gly1383Ser	missense_variant	27/29	1	NM_000620.5	P1	P29475-1
NOS1	ENST00000338101.8 linkuse as main transcript	c.4249G>A	p.Gly1417Ser	missense_variant	27/29	5			P29475-5
NOS1	ENST00000618760.4 linkuse as main transcript	c.4249G>A	p.Gly1417Ser	missense_variant	28/30	5			P29475-5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000163

AC:

AN:

245966

Hom.:

AF XY:

0.0000225

AC XY:

AN XY:

133386

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000294

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000561

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000896

Gnomad OTH exome

AF:

0.000168

GnomAD4 exome

AF:

0.00000822

AC:

AN:

1459086

Hom.:

Cov.:

AF XY:

0.00000965

AC XY:

AN XY:

725734

show subpopulations

Gnomad4 AFR exome

AF:

0.0000898

Gnomad4 AMR exome

AF:

0.0000225

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000467

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 19, 2023

The c.4249G>A (p.G1417S) alteration is located in exon 28 (coding exon 27) of the NOS1 gene. This alteration results from a G to A substitution at nucleotide position 4249, causing the glycine (G) at amino acid position 1417 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.084

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.23

CADD

Uncertain

DANN

Benign

0.88

DEOGEN2

Benign

0.36

T;.;.;T

Eigen

Uncertain

0.21

Eigen_PC

Benign

0.14

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.90

D;D;.;D

M_CAP

Benign

0.060

MetaRNN

Uncertain

0.55

D;D;D;D

MetaSVM

Benign

-0.35

MutationAssessor

Benign

1.6

L;.;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.9

N;.;N;.

REVEL

Uncertain

0.40

Sift

Benign

0.47

T;.;T;.

Sift4G

Benign

0.57

T;T;T;T

Polyphen

0.93

P;.;.;.

Vest4

0.51

MutPred

0.46

Gain of catalytic residue at R1388 (P = 0.0205);.;.;.;

MVP

0.79

MPC

0.81

ClinPred

0.28

GERP RS

4.4

Varity_R

0.15

gMVP

0.62

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

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