chr17-27798892-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The ENST00000313735.11(NOS2):​c.-73-10C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.346 in 886,886 control chromosomes in the GnomAD database, including 53,564 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.34 ( 8780 hom., cov: 31)
Exomes 𝑓: 0.35 ( 44784 hom. )

Consequence

NOS2
ENST00000313735.11 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0001112
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.663
Variant links:
Genes affected
NOS2 (HGNC:7873): (nitric oxide synthase 2) Nitric oxide is a reactive free radical which acts as a biologic mediator in several processes, including neurotransmission and antimicrobial and antitumoral activities. This gene encodes a nitric oxide synthase which is expressed in liver and is inducible by a combination of lipopolysaccharide and certain cytokines. Three related pseudogenes are located within the Smith-Magenis syndrome region on chromosome 17. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 17-27798892-G-A is Benign according to our data. Variant chr17-27798892-G-A is described in ClinVar as [Benign]. Clinvar id is 2688120.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.408 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NOS2NM_000625.4 linkuse as main transcriptc.-73-10C>T splice_polypyrimidine_tract_variant, intron_variant ENST00000313735.11 NP_000616.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NOS2ENST00000313735.11 linkuse as main transcriptc.-73-10C>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_000625.4 ENSP00000327251 P2P35228-1
NOS2ENST00000697337.1 linkuse as main transcript upstream_gene_variant ENSP00000513259

Frequencies

GnomAD3 genomes
AF:
0.336
AC:
51076
AN:
151856
Hom.:
8777
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.305
Gnomad AMI
AF:
0.254
Gnomad AMR
AF:
0.407
Gnomad ASJ
AF:
0.353
Gnomad EAS
AF:
0.315
Gnomad SAS
AF:
0.423
Gnomad FIN
AF:
0.324
Gnomad MID
AF:
0.437
Gnomad NFE
AF:
0.337
Gnomad OTH
AF:
0.329
GnomAD3 exomes
AF:
0.367
AC:
76702
AN:
209188
Hom.:
14076
AF XY:
0.366
AC XY:
41041
AN XY:
112206
show subpopulations
Gnomad AFR exome
AF:
0.309
Gnomad AMR exome
AF:
0.480
Gnomad ASJ exome
AF:
0.361
Gnomad EAS exome
AF:
0.329
Gnomad SAS exome
AF:
0.415
Gnomad FIN exome
AF:
0.334
Gnomad NFE exome
AF:
0.338
Gnomad OTH exome
AF:
0.358
GnomAD4 exome
AF:
0.348
AC:
255688
AN:
734912
Hom.:
44784
Cov.:
10
AF XY:
0.350
AC XY:
136515
AN XY:
390148
show subpopulations
Gnomad4 AFR exome
AF:
0.308
Gnomad4 AMR exome
AF:
0.470
Gnomad4 ASJ exome
AF:
0.358
Gnomad4 EAS exome
AF:
0.354
Gnomad4 SAS exome
AF:
0.408
Gnomad4 FIN exome
AF:
0.329
Gnomad4 NFE exome
AF:
0.331
Gnomad4 OTH exome
AF:
0.342
GnomAD4 genome
AF:
0.336
AC:
51116
AN:
151974
Hom.:
8780
Cov.:
31
AF XY:
0.341
AC XY:
25320
AN XY:
74288
show subpopulations
Gnomad4 AFR
AF:
0.305
Gnomad4 AMR
AF:
0.407
Gnomad4 ASJ
AF:
0.353
Gnomad4 EAS
AF:
0.315
Gnomad4 SAS
AF:
0.424
Gnomad4 FIN
AF:
0.324
Gnomad4 NFE
AF:
0.337
Gnomad4 OTH
AF:
0.330
Alfa
AF:
0.336
Hom.:
9152
Bravo
AF:
0.338
Asia WGS
AF:
0.374
AC:
1302
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingUnidad de Genómica Garrahan, Hospital de Pediatría GarrahanJan 24, 2024This variant is classified as Benign based on local population frequency. This variant was detected in 51% of patients studied by a panel of primary immunodeficiencies. Number of patients: 48. Only high quality variants are reported. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
12
DANN
Benign
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00011
dbscSNV1_RF
Benign
0.0060
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: rs3730013; hg19: chr17-26125918; API