chr7-150996515-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_000603.5(NOS3):​c.382C>T​(p.Arg128Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000144 in 1,607,330 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R128Q) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00049 ( 0 hom., cov: 28)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

NOS3
NM_000603.5 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.837
Variant links:
Genes affected
NOS3 (HGNC:7876): (nitric oxide synthase 3) Nitric oxide is a reactive free radical which acts as a biologic mediator in several processes, including neurotransmission and antimicrobial and antitumoral activities. Nitric oxide is synthesized from L-arginine by nitric oxide synthases. Variations in this gene are associated with susceptibility to coronary spasm. Alternative splicing and the use of alternative promoters results in multiple transcript variants. [provided by RefSeq, Oct 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.03523782).
BS2
High AC in GnomAd4 at 73 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NOS3NM_000603.5 linkuse as main transcriptc.382C>T p.Arg128Trp missense_variant 4/27 ENST00000297494.8
NOS3NM_001160111.1 linkuse as main transcriptc.382C>T p.Arg128Trp missense_variant 3/14
NOS3NM_001160110.1 linkuse as main transcriptc.382C>T p.Arg128Trp missense_variant 3/14
NOS3NM_001160109.2 linkuse as main transcriptc.382C>T p.Arg128Trp missense_variant 3/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NOS3ENST00000297494.8 linkuse as main transcriptc.382C>T p.Arg128Trp missense_variant 4/271 NM_000603.5 P1P29474-1
NOS3ENST00000484524.5 linkuse as main transcriptc.382C>T p.Arg128Trp missense_variant 3/141 P29474-2
NOS3ENST00000467517.1 linkuse as main transcriptc.382C>T p.Arg128Trp missense_variant 3/141 P29474-3
NOS3ENST00000461406.5 linkuse as main transcriptc.-37+1201C>T intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.000491
AC:
73
AN:
148810
Hom.:
0
Cov.:
28
show subpopulations
Gnomad AFR
AF:
0.00152
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000134
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00163
Gnomad SAS
AF:
0.000441
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000309
AC:
75
AN:
242934
Hom.:
0
AF XY:
0.000302
AC XY:
40
AN XY:
132540
show subpopulations
Gnomad AFR exome
AF:
0.00147
Gnomad AMR exome
AF:
0.0000875
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00197
Gnomad SAS exome
AF:
0.000298
Gnomad FIN exome
AF:
0.0000481
Gnomad NFE exome
AF:
0.00000926
Gnomad OTH exome
AF:
0.000335
GnomAD4 exome
AF:
0.000108
AC:
158
AN:
1458408
Hom.:
0
Cov.:
34
AF XY:
0.000108
AC XY:
78
AN XY:
725324
show subpopulations
Gnomad4 AFR exome
AF:
0.00155
Gnomad4 AMR exome
AF:
0.0000449
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00144
Gnomad4 SAS exome
AF:
0.000256
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.000315
GnomAD4 genome
AF:
0.000490
AC:
73
AN:
148922
Hom.:
0
Cov.:
28
AF XY:
0.000386
AC XY:
28
AN XY:
72472
show subpopulations
Gnomad4 AFR
AF:
0.00152
Gnomad4 AMR
AF:
0.000134
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00164
Gnomad4 SAS
AF:
0.000441
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000214
Hom.:
0
Bravo
AF:
0.000627
ESP6500AA
AF:
0.000917
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000250
AC:
30
EpiCase
AF:
0.00
EpiControl
AF:
0.0000594

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 submitterclinical testingAmbry GeneticsOct 26, 2021The c.382C>T (p.R128W) alteration is located in exon 4 (coding exon 3) of the NOS3 gene. This alteration results from a C to T substitution at nucleotide position 382, causing the arginine (R) at amino acid position 128 to be replaced by a tryptophan (W). 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
0.16
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.29
T;.;.
Eigen
Benign
-0.43
Eigen_PC
Benign
-0.58
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.72
T;T;T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.035
T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.6
L;L;L
MutationTaster
Benign
1.0
D;N;N;N
PrimateAI
Benign
0.37
T
PROVEAN
Uncertain
-3.3
D;D;D
REVEL
Benign
0.21
Sift
Uncertain
0.0080
D;D;D
Sift4G
Uncertain
0.0060
D;D;D
Polyphen
0.99
D;.;.
Vest4
0.50
MVP
0.58
MPC
0.17
ClinPred
0.088
T
GERP RS
-3.5
Varity_R
0.73
gMVP
0.68

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.

Other links and lift over

dbSNP: rs143324164; hg19: chr7-150693603; API