2-168856770-A-G

Variant names:

• chr2-168856770-A-G
• rs367978473
• NM_001039724.4:c.1045A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001039724.4(NOSTRIN):​c.1045A>G​(p.Met349Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. M349T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: NOSTRIN NM_001039724.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.62
• Publications: 0 publications found

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]

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]

ACMG classification

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=0.1132929).

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOSTRIN	NM_001039724.4	MANE Select	c.1045A>G	p.Met349Val	missense	Exon 12 of 16	NP_001034813.2	Q8IVI9-1
	NOSTRIN	NM_001171631.2		c.1216A>G	p.Met406Val	missense	Exon 17 of 21	NP_001165102.1	Q8IVI9-4
	NOSTRIN	NM_001171632.2		c.961A>G	p.Met321Val	missense	Exon 11 of 15	NP_001165103.1	Q8IVI9-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOSTRIN	ENST00000317647.12	TSL:1 MANE Select	c.1045A>G	p.Met349Val	missense	Exon 12 of 16	ENSP00000318921.7	Q8IVI9-1
	NOSTRIN	ENST00000397209.6	TSL:1	c.961A>G	p.Met321Val	missense	Exon 11 of 15	ENSP00000380392.2	Q8IVI9-2
	NOSTRIN	ENST00000397206.6	TSL:1	c.811A>G	p.Met271Val	missense	Exon 11 of 15	ENSP00000380390.2	Q8IVI9-3

Frequencies

GnomAD3 genomes AF: 0.0000526 AC: 8 AN: 152184 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000169

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.00

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.0000241 AC: 6 AN: 249376 AF XY: 0.0000148

Gnomad AFR exome AF: 0.000387

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461658 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 727162

African (AFR) AF: 0.000209 AC: 7 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111792

Other (OTH) AF: 0.0000166 AC: 1 AN: 60394

GnomAD4 genome AF: 0.0000526 AC: 8 AN: 152184 Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3 AN XY: 74344

African (AFR) AF: 0.000169 AC: 7 AN: 41454

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5198

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10614

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68024

Other (OTH) AF: 0.000478 AC: 1 AN: 2092

Alfa AF: 0.000132 Hom.: 0

Bravo AF: 0.0000831

ESP6500AA AF: 0.000250 AC: 1

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.0000248 AC: 3

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.48	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	20
DANN	Benign	0.97
DEOGEN2	Benign	0.0042	T
Eigen	Benign	-0.29
Eigen_PC	Benign	-0.16
FATHMM_MKL	Benign	0.67	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.0066	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	2.0	M
PhyloP100		1.6
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.023
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.039	D
Polyphen		0.0080	B
Vest4		0.34
MVP		0.55
MPC		0.082
ClinPred		0.10	T
GERP RS		2.2
Varity_R		0.21
gMVP		0.30
Mutation Taster		=98/2	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs367978473; hg19: chr2-169713280;