Beta-amirinska sintaza

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Beta-amirinska sintaza
Identifikatori
EC broj 5.4.99.39
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures

Beta-amirinska sintaza (EC 5.4.99.39, 2,3-oksidoskvalen beta-amirin ciklaza, AsbAS1, BPY, EtAS, GgbAS1, LjAMY1, MtAMY1, PNY, BgbAS) je enzim sa sistematskim imenom (3S)-2,3-epoksi-2,3-dihidroskvalen mutaza (ciklizacija, formira beta-amirin).[1][2][3][4][5][6][7][8][9][10][11] Ovaj enzim katalizuje sledeću hemijsku reakciju

(3S)-2,3-epoksi-2,3-dihidroskvalen \rightleftharpoons beta-amirin

Neki organizmi poseduju monofunkcionalnu beta-amirinsku sintazu.

Reference[уреди]

  1. ^ Abe, I, Ebizuka, Y., Seo, S. and Sankawa, U. (1989). „Purification of squalene-2,3-epoxide cyclases from cell suspension cultures of Rabdosia japonica' Hara“. FEBS Lett. 249: 100-104. 
  2. ^ Abe, I., Sankawa, U. and Ebizuka, Y. (1989). „Purification of 2,3-oxdosqualene:β-amyrin cyclase from pea seedlings“. Chem. Pharm. Bull. 37: 536-. 
  3. ^ Kushiro, T., Shibuya, M. and Ebizuka, Y. (1998). „β-Amyrin synthase-cloning of oxidosqualene cyclase that catalyzes the formation of the most popular triterpene among higher plants“. Eur. J. Biochem. 256: 238-244. PMID 9746369. 
  4. ^ Hayashi, H., Huang, P., Kirakosyan, A., Inoue, K., Hiraoka, N., Ikeshiro, Y., Kushiro, T., Shibuya, M. and Ebizuka, Y. (2001). „Cloning and characterization of a cDNA encoding β-amyrin synthase involved in glycyrrhizin and soyasaponin biosyntheses in licorice“. Biol. Pharm. Bull. 24: 912-916. PMID 11510484. 
  5. ^ Husselstein-Muller, T., Schaller, H. and Benveniste, P. (2001). „Molecular cloning and expression in yeast of 2,3-oxidosqualene-triterpenoid cyclases from Arabidopsis thaliana“. Plant Mol. Biol. 45: 75-92. PMID 11247608. 
  6. ^ Iturbe-Ormaetxe, I., Haralampidis, K., Papadopoulou, K. and Osbourn, A.E. (2003). „Molecular cloning and characterization of triterpene synthases from Medicago truncatula and Lotus japonicus“. Plant Mol. Biol. 51: 731-743. PMID 12683345. 
  7. ^ Zhang, H., Shibuya, M., Yokota, S. and Ebizuka, Y. (2003). „Oxidosqualene cyclases from cell suspension cultures of Betula platyphylla var. japonica: molecular evolution of oxidosqualene cyclases in higher plants“. Biol. Pharm. Bull. 26: 642-650. PMID 12736505. 
  8. ^ Hayashi, H., Huang, P., Takada, S., Obinata, M., Inoue, K., Shibuya, M. and Ebizuka, Y. (2004). „Differential expression of three oxidosqualene cyclase mRNAs in Glycyrrhiza glabra“. Biol. Pharm. Bull. 27: 1086-1092. PMID 15256745. 
  9. ^ Kajikawa, M., Yamato, K.T., Fukuzawa, H., Sakai, Y., Uchida, H. and Ohyama, K. (2005). „Cloning and characterization of a cDNA encoding β-amyrin synthase from petroleum plant Euphorbia tirucalli L“. Phytochemistry 66: 1759-1766. PMID 16005035. 
  10. ^ Basyuni, M., Oku, H., Tsujimoto, E., Kinjo, K., Baba, S. and Takara, K. (2007). „Triterpene synthases from the Okinawan mangrove tribe, Rhizophoraceae“. FEBS J. 274: 5028-5042. PMID 17803686. 
  11. ^ Liu, Y., Cai, Y., Zhao, Z., Wang, J., Li, J., Xin, W., Xia, G. and Xiang, F. (2009). „Cloning and functional analysis of a β-amyrin synthase gene associated with oleanolic acid biosynthesis in Gentiana straminea MAXIM“. Biol. Pharm. Bull. 32: 818-824. PMID 19420748. 

Literatura[уреди]

Spoljašnje vezе[уреди]