Pantetheine hydrolase
In enzymology, a pantetheine hydrolase (EC 3.5.1.92) is an enzyme that catalyzes the chemical reaction
- (R)-pantetheine + H2O (R)-pantothenate + 2-aminoethanethiol
| Pantetheine hydrolase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 3.5.1.92 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
Thus, the two substrates of this enzyme are (R)-pantetheine and H2O, whereas its two products are (R)-pantothenate and 2-aminoethanethiol.
This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is (R)-pantetheine amidohydrolase. Other names in common use include pantetheinase, vanin, and vanin-1. This enzyme participates in pantothenate and coa biosynthesis.
References
- Dupre S, Cavallini D (1979). "Purification and properties of pantetheinase from horse kidney". Methods Enzymol. Methods in Enzymology. 62: 262–7. doi:10.1016/0076-6879(79)62227-9. ISBN 978-0-12-181962-0. PMID 440106.
- Dupre S, Chiaraluce R, Nardini M, Cannella C, Ricci G, Cavallini D (1984). "Continuous spectrophotometric assay of pantetheinase activity". Anal. Biochem. 142 (1): 175–81. doi:10.1016/0003-2697(84)90534-7. PMID 6549111.
- Maras B, Barra D, Dupre S, Pitari G (1999). "Is pantetheinase the actual identity of mouse and human vanin-1 proteins?". FEBS Lett. 461 (3): 149–52. doi:10.1016/S0014-5793(99)01439-8. PMID 10567687.
- P; Galland, F; Bazin, H; Zakharyev, VM; Imhof, BA; Naquet, P (1996). "Vanin-1, a novel GPI-linked perivascular molecule involved in thymus homing". Immunity. 5 (5): 391–405. doi:10.1016/S1074-7613(00)80496-3. PMID 8934567.
- Maras B, Dupre S, Naquet P, Galland F (2000). "Pantetheinase activity of membrane-bound Vanin-1: lack of free cysteamine in tissues of Vanin-1 deficient mice". FEBS Lett. 483 (2–3): 149–54. doi:10.1016/S0014-5793(00)02110-4. PMID 11042271.
- Granjeaud S, Mattei MG, Mungall AJ, Naquet P, Galland F (2001). "Vanin genes are clustered (human 6q22-24 and mouse 10A2B1) and encode isoforms of pantetheinase ectoenzymes". Immunogenetics. 53 (4): 296–306. doi:10.1007/s002510100327. PMID 11491533.
- Pace HC, Brenner C (2001). "The nitrilase superfamily: classification, structure and function". Genome Biol. 2 (1): REVIEWS0001. doi:10.1186/gb-2001-2-1-reviews0001. PMC 150437. PMID 11380987.
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