5-Epiaristolohenska sintaza

С Википедије, слободне енциклопедије
5-Epiaristolohenska sintaza
Identifikatori
EC broj4.2.3.61
Baze podataka
IntEnzIntEnz pregled
BRENDABRENDA pristup
ExPASyNiceZyme pregled
KEGGKEGG pristup
MetaCycmetabolički put
PRIAMprofil
Strukture PBPRCSB PDB PDBe PDBj PDBsum

5-Epiaristolohenska sintaza (EC 4.2.3.61, 5-epi-aristolohenska sintaza, tobako epiaristolohenska sintaza, farnezil pirofosfatna ciklaza, EAS, TEAS) je enzim sa sistematskim imenom (2E,6E)-farnezil-difosfat difosfat-lijaza (formira (+)-5-epiaristolohen).[1][2][3][4][5][6] Ovaj enzim katalizuje sledeću hemijsku reakciju

(2E,6E)-farnezil difosfat (+)-5-epiaristolohen + difosfat

Inicijalna ciklizacija daje (+)-germakren A koji je vezan za enzim.

Reference[уреди | уреди извор]

  1. ^ Back, K., Yin, S. and Chappell, J. (1994). „Expression of a plant sesquiterpene cyclase gene in Escherichia coli”. Arch. Biochem. Biophys. 315: 527—532. PMID 7986100. 
  2. ^ Starks, C.M., Back, K., Chappell, J. and Noel, J.P. (1997). „Structural basis for cyclic terpene biosynthesis by tobacco 5-epi-aristolochene synthase”. Science. 277: 1815—1820. PMID 9295271. 
  3. ^ Back, K., He, S., Kim, K.U. and Shin, D.H. (1998). „Cloning and bacterial expression of sesquiterpene cyclase, a key branch point enzyme for the synthesis of sesquiterpenoid phytoalexin capsidiol in UV-challenged leaves of Capsicum annuum”. Plant Cell Physiol. 39: 899—904. PMID 9816674. 
  4. ^ Rising, K.A., Starks, C.M., Noel, J.P. and Chappell, J. (2000). „Demonstration of germacrene A as an intermediate in 5-epi-aristolochene synthase catalysis”. J. Am. Chem. Soc. 122: 1861—1866. 
  5. ^ Bohlmann, J., Stauber, E.J., Krock, B., Oldham, N.J., Gershenzon, J. and Baldwin, I.T. (2002). „Gene expression of 5-epi-aristolochene synthase and formation of capsidiol in roots of Nicotiana attenuata and N. sylvestris'. Phytochemistry. 60: 109—116. PMID 12009313. 
  6. ^ O'Maille, P.E., Chappell, J. and Noel, J.P. (2006). „Biosynthetic potential of sesquiterpene synthases: alternative products of tobacco 5-epi-aristolochene synthase”. Arch. Biochem. Biophys. 448: 73—82. PMID 16375847. 

Literatura[уреди | уреди извор]

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