2-168860822-T-A

Position:

• chr2-168860822-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001039724.4(NOSTRIN):​c.1207T>A​(p.Ser403Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NOSTRIN NM_001039724.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.24

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

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.16600642).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NOSTRIN	NM_001039724.4	c.1207T>A	p.Ser403Thr	missense_variant	14/16	ENST00000317647.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOSTRIN	ENST00000317647.12	c.1207T>A	p.Ser403Thr	missense_variant	14/16	1	NM_001039724.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 04, 2024

The c.1378T>A (p.S460T) alteration is located in exon 19 (coding exon 15) of the NOSTRIN gene. This alteration results from a T to A substitution at nucleotide position 1378, causing the serine (S) at amino acid position 460 to be replaced by a threonine (T). 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	0.089
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	15
DANN	Benign	0.93
DEOGEN2	Benign	0.0017	.;.;T;.;.;.
Eigen	Benign	-0.22
Eigen_PC	Benign	-0.084
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.67	.;T;T;.;T;T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.17	T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.2	.;.;M;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-1.0	N;N;N;N;N;N
REVEL	Benign	0.079
Sift	Benign	0.21	T;T;T;T;T;T
Sift4G	Benign	0.26	T;T;T;T;T;T
Polyphen		0.023, 0.0080, 0.0070	.;.;B;B;B;B
Vest4		0.21
MutPred		0.31		.;.;Loss of disorder (P = 0.0753);.;.;.;
MVP		0.59
MPC		0.080
ClinPred		0.61	D
GERP RS		4.6
Varity_R		0.14
gMVP		0.38

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-169717332;