Intra-assay Precision (Precision within an assay): CV%<8%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10%
Three samples of known concentration were tested in twenty assays to assess.
線性度:
To assess the linearity of the assay, samples were spiked with high concentrations of human pantetheinase in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
Sample
Serum(n=4)
1:1
Average %
97
Range %
92-104
1:2
Average %
84
Range %
80-88
1:4
Average %
90
Range %
85-94
1:8
Average %
100
Range %
95-104
回收率:
The recovery of human pantetheinase spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Sample Type
Average % Recovery
Range
Serum (n=5)
88
80-92
EDTA plasma (n=4)
94
90-99
標準曲線:
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
Amidohydrolase that hydrolyzes specifically one of the carboamide linkages in D-pantetheine thus recycling pantothenic acid (vitamin B5) and releasing cysteamine.
基因功能參考文獻:
findings suggest that the metabolic pathway catalyzed by VNN1 pantetheinase plays a suppressive role in IAV infection in the respiratory tract, especially in severe conditions under hypercytokinemia PMID: 28576495
Data show that G protein-coupled receptor, family C, group 5, member A protein (GPRC5A) regulates oxidative stress through vanin 1 protein (VNN1). PMID: 28316092
These data suggest that urinary vanin-1 is an early predictive biomarker for decline in eGFR in patients with urothelial carcinoma after dosing of cisplatin PMID: 27317936
serum pantetheinas, encoded by the VNN1 gene, level regulates erythrocyte life span and modulates the risk of developing complicated malaria. PMID: 26343328
VNN1 contributes to corticosteroid responsiveness, and changes in VNN1 nasal epithelial mRNA expression and VNN1 promoter methylation might be clinically useful biomarkers of treatment response in asthmatic children. PMID: 25910714
Our study provides strong biological evidence for the association of the identified SNP with BP and suggests that vanin-1 misfolding and degradation are the underlying molecular mechanism. PMID: 25233454
show that hepatic vanin-1 is under extremely sensitive regulation by PPARalpha and that plasma vanin activity could serve as a readout of changes in PPARalpha activity in human subjects PMID: 24751833
The X-ray crystal structure of human vanin 1 at 2.25 A resolution is presented, which is the first reported structure from the vanin family, as well as a crystal structure of vanin 1 bound to a specific inhibitor. PMID: 25478849
Serum vanin-1 levels may be low in the end-stage renal failure and transiently increase after transplant owing to transient renal function deterioration, which does not lead to elevation of serum creatinine levels in renal transplant patients. PMID: 24702142
Our results suggest that vanin-1 can distinguish between chronic responders and non-responders ITP patients as well as between newly diagnosed ITP patients and healthy controls. PMID: 23534352
Alternative Splicing in VNN1 gene is associated with colorectal cancer. PMID: 24687856
Single-nucleotide polymorphisms in the Regulatory Regions of the VNN1 Gene Are Associated with inflammatory bowel diseases. PMID: 23949622
Microparticle internalization required the interaction of the ectoenzyme Vanin-1 (VNN1), an abundant surface protein on the microparticles, with lipid raft domains of endothelial cells. PMID: 24106341
It isthe enzyme that recycles pantothenic acid (vitamin B5) generated during coenzyme A breakdown and actively involved in the progression of inflammatory reactions by generating cysteamine. PMID: 23978960
Liver contributes to Vanin-1 secretion in serum and PPARalpha is a limiting factor in serum Vnn1 production. PMID: 24140347
data do not support a major role for the Vanin 1 T26I variant in determining blood pressure level and incident ischemic events PMID: 21550219
Our data suggest that VNN1 gene expression and the G-137T variant are associated with HDL-C levels in Mexican children, particularly in prepubertal girls. PMID: 23185446
Urinary vanin-1, an ectoenzyme pantetheinase, distinguished diabetic patients with macroalbuminuria from those with normal albuminuria. PMID: 21544065
Vanin-1 is a specific and sensitive biomarker for renal tubular injury induced by organic solvents. PMID: 21907259
Overexpression of VNN1, an oxidative stress sensor in epithelial cells, was most strongly associated with progression to chronic immune thrombocytopenia PMID: 21325602
The combination of VNN1 and MMP9 may be used as a novel blood biomarker panel for the discrimination of pancreatic cancer-associated diabetes from type 2 diabetes. PMID: 20571492
Pantetheinase (Vnn1) is critical for the host susceptibility to malaria. PMID: 17312006
missense SNP rs2272996 (or N131S) in the VNN1 gene was significantly associated with hypertension in African Americans and the association was replicated in Mexican Americans; a non-significant opposite association was observed in European Americans PMID: 18043751
vanin-1 and vanin-3 are induced at the mRNA and protein level by psoriasis-associated proinflammatory cytokines (Th17/Th1) but not by Th2 cytokines. PMID: 19322213
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亞細胞定位:
Cell membrane; Lipid-anchor, GPI-anchor.
蛋白家族:
Carbon-nitrogen hydrolase superfamily, BTD/VNN family
組織特異性:
Widely expressed with higher expression in spleen, kidney and blood. Overexpressed in lesional psoriatic skin.