Genetic Variant NOSTRIN:p.Ala490Ser (chr2-168864917-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001039724.4(NOSTRIN):c.1468G>T(p.Ala490Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A490T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NOSTRIN
NM_001039724.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.60

Publications

0 publications found

Variant links:

Genes affected

NOSTRIN (HGNC:20203): (nitric oxide synthase trafficking) Nitric oxide (NO) is a potent mediator in biologic processes such as neurotransmission, inflammatory response, and vascular homeostasis. NOSTRIN binds the enzyme responsible for NO production, endothelial NO synthase (ENOS; MIM 163729), and triggers the translocation of ENOS from the plasma membrane to vesicle-like subcellular structures, thereby attenuating ENOS-dependent NO production.[supplied by OMIM, Apr 2004]

NOSTRIN links:

SPC25 (HGNC:24031): (SPC25 component of NDC80 kinetochore complex) This gene encodes a protein that may be involved in kinetochore-microtubule interaction and spindle checkpoint activity. [provided by RefSeq, Jul 2008]

SPC25 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1499084).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001039724.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NOSTRIN	NM_001039724.4	MANE Select	c.1468G>T	p.Ala490Ser	missense	Exon 16 of 16	NP_001034813.2	Q8IVI9-1
NOSTRIN	NM_001171631.2		c.1639G>T	p.Ala547Ser	missense	Exon 21 of 21	NP_001165102.1	Q8IVI9-4
NOSTRIN	NM_001171632.2		c.1384G>T	p.Ala462Ser	missense	Exon 15 of 15	NP_001165103.1	Q8IVI9-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NOSTRIN	ENST00000317647.12	TSL:1 MANE Select	c.1468G>T	p.Ala490Ser	missense	Exon 16 of 16	ENSP00000318921.7	Q8IVI9-1
NOSTRIN	ENST00000397209.6	TSL:1	c.1384G>T	p.Ala462Ser	missense	Exon 15 of 15	ENSP00000380392.2	Q8IVI9-2
NOSTRIN	ENST00000397206.6	TSL:1	c.1234G>T	p.Ala412Ser	missense	Exon 15 of 15	ENSP00000380390.2	Q8IVI9-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461822

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727222

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111978

Other (OTH)

AF:

0.00

AC:

AN:

60392

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.011

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.21

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.82

M_CAP

Benign

0.0047

MetaRNN

Benign

0.15

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.78

PhyloP100

1.6

PrimateAI

Benign

0.39

PROVEAN

Benign

0.44

REVEL

Benign

0.097

Sift

Benign

0.074

Sift4G

Benign

0.32

Polyphen

0.051

Vest4

0.37

MutPred

0.61

Gain of disorder (P = 0.0267)

MVP

0.52

MPC

0.091

ClinPred

0.51

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.087

gMVP

0.25

Mutation Taster

=97/3

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over