Pantetheinase
Pantetheinase
Pantetheinase is a ubiquitous enzyme that hydrolyzes D-pantothenic acid to cysteamine and pantothenic acid (vitamin B5) through the dissimilating pathway of coenzyme A[1]. The pantetheinase is encoded by the Vnn (vanin) gene, with Vnn1 being the dominant tissue subtype in both mice and humans[2]. Under physiological conditions, membrane-bound pantetheinase is the main source of cysteamine in tissues. Cysteamine is a potent antioxidant, and Vanin/pantetheinase may be involved in the regulation of certain immune functions. Pantothenic acid is an important component of coenzyme A biosynthesis, and coenzyme A is a crucial cofactor involved in the tricarboxylic acid cycle and fatty acid metabolism. Mercaptoethylamine inhibits glutamylcysteine synthetase, thereby reducing the glutathione pool, which may trigger an inflammatory response. Additionally, functional studies of the enzyme have also shown that pantetheinase is involved in liver lipid metabolism, gluconeogenesis, and inflammation[3].
References:
- [1]. Naquet P, et al. Role of the Vnn1 pantetheinase in tissue tolerance to stress. Biochem Soc Trans. 2014 Aug;42(4):1094-100.
- [2]. Pitari G, et al. Pantetheinase activity of membrane-bound Vanin-1: lack of free cysteamine in tissues of Vanin-1 deficient mice. FEBS Lett. 2000 Oct 20;483(2-3):149-54. [Content Brief]
- [3]. Rommelaere S, et al. Serum pantetheinase/vanin levels regulate erythrocyte homeostasis and severity of malaria. Am J Pathol. 2015 Nov;185(11):3039-52. [Content Brief]
- [4]. Naquet P, et al. Role of the Vnn1 pantetheinase in tissue tolerance to stress. Biochem Soc Trans. 2014 Aug;42(4):1094-100. [Content Brief]
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Pantetheinase Related Products (9)
Related Products (9)
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2-Chloropyrimidine-5-carboxylic acid
0 Images2-Chloropyrimidine-5-carboxylic acid is a synthetic intermediate of Vanin-1 inhibitor 2.
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RR6
0 ImagesRR6 is a potent, selective, reversible, competitive and orally active vanin inhibitor with an IC50 of 540 nM for recombinant vanin-1. RR6 also potently inhibits human, bovine and rat serum pantetheinase with IC50 values of 40 nM, 41 nM and 87 nM, respectively.
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PFI-653
0 ImagesSynonyms: Vanin-1-IN-1PFI-653 (Vanin-1-IN-1, compound 3), a chemical probe, is a vanin-1 inhibitor that binds to plasma vanin-1 from mouse, rat, dog, and human. Vanin-1 is a cell surface-associated inositol (GPi) -anchored protein that plays important roles in metabolism and inflammation. PFI-653 inhibits vanin-1 from different species with IC50s of 6.85 nM (human recombinant plasma vanin-1), 9.0 nM (human plasma vanin-1), 24.5 nM (mouse recombinant vanin-1), and 53.4 nM (mouse plasma vanin-1).
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Vanin-1-IN-3
0 ImagesCat. No.: HY-146412CAS No.: 2940964-70-3Vanin-1-IN-3 (OMP-7) is a vanin-1 inhibitor with an IC50 of 0.038 μM.
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Vanin-1-IN-4
0 ImagesCat. No.: HY-161249CAS No.: 2173134-02-4Vanin-1-IN-4 (compound (S)-1) is vanin-1 inhibitor with a chiral methyl substituent, with profils as potent drug-candidate but exist as an amorphous solid.
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Vanin-1-IN-2
0 ImagesCat. No.: HY-145316CAS No.: 2054952-13-3Vanin-1-IN-2 is a potent vanin-1 inhibitor with an IC50 of 162 nM. Vanin-1 is a cell-surface-associated, glycosylphosphatidyl inositol (GPI)-anchored protein which is expressed at high levels in the kidney, liver, and small intestine.
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Stephavanine
0 ImagesCat. No.: HY-N1220CAS No.: 33116-33-5Stephavanine is a compound isolated from the roots of Stephania abyssinica.
