Di-trans,poli-cis-dekaprenilcistransferaza

(Preusmjereno sa stranice Undekaprenil-difosfat sintaza)

Di-trans,poli-cis-dekaprenilcistransferaza (EC 2.5.1.31, di-trans,poli-cis-undekaprenil-difosfat sintaza, undekaprenil-difosfat sintaza, baktoprenil-difosfatna sintaza, UPP sintetaza, undekaprenil difosfatna sintetaza, undekaprenilna pirofosfat, sintetaza) je enzim sa sistematskim imenom (2E,6E)-farnezil-difosfat:izopentenil-difosfat cistransferaza (dodaje 8 izopentenilnih jedinica).[1][2][3][4][5][6][7][8] Ovaj enzim katalizuje sledeću hemijsku reakciju

Di-trans,poli-cis-dekaprenilcistransferaza
Identifikatori
EC broj 2.5.1.31
CAS broj 52350-87-5
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB RCSB PDB PDBe PDBj PDBsum
(2E,6E)-farnezil difosfat + 8 izopentenil difosfat 8 difosfat + ditrans,oktacis-undekaprenil difosfat

Undekaprenil pirofosfatna sintaza katalizuje konsekutivne reakcije kondenzacije farnezil difosfata sa osam izopentenilnih difosfata, u kojima se nove cis-dvostruke veze formiraju. Time se generiše undekaprenil difosfat koji služi kao [[[lipid]]ni nosilac za peptidoglikansku sintezu bakterijskog ćelijskog zida.

Reference uredi

  1. Muth, J.D. and Allen, C.M. (1984). „Undecaprenyl pyrophosphate synthetase from Lactobacillus plantarum: a dimeric protein”. Arch. Biochem. Biophys. 230: 49-60. PMID 6712246. 
  2. Takahashi, I. and Ogura, K. (1982). „Prenyltransferases of Bacillus subtilis: undecaprenyl pyrophosphate synthetase and geranylgeranyl pyrophosphate synthetase”. J. Biochem. (Tokyo) 92: 1527-1537. PMID 6818223. 
  3. Guo, R.T., Ko, T.P., Chen, A.P., Kuo, C.J., Wang, A.H. and Liang, P.H. (2005). „Crystal structures of undecaprenyl pyrophosphate synthase in complex with magnesium, isopentenyl pyrophosphate, and farnesyl thiopyrophosphate: roles of the metal ion and conserved residues in catalysis”. J. Biol. Chem. 280: 20762-20774. PMID 15788389. 
  4. Ko, T.P., Chen, Y.K., Robinson, H., Tsai, P.C., Gao, Y.G., Chen, A.P., Wang, A.H. and Liang, P.H. (2001). „Mechanism of product chain length determination and the role of a flexible loop in Escherichia coli undecaprenyl-pyrophosphate synthase catalysis”. J. Biol. Chem. 276: 47474-47482. PMID 11581264. 
  5. Fujikura, K., Zhang, Y.W., Fujihashi, M., Miki, K. and Koyama, T. (2003). „Mutational analysis of allylic substrate binding site of Micrococcus luteus B-P 26 undecaprenyl diphosphate synthase”. Biochemistry 42: 4035-4041. PMID 12680756. 
  6. Fujihashi, M., Zhang, Y.W., Higuchi, Y., Li, X.Y., Koyama, T. and Miki, K. (2001). „Crystal structure of cis-prenyl chain elongating enzyme, undecaprenyl diphosphate synthase”. Proc. Natl. Acad. Sci. USA 98: 4337-4342. PMID 11287651. 
  7. Pan, J.J., Chiou, S.T. and Liang, P.H. (2000). „Product distribution and pre-steady-state kinetic analysis of Escherichia coli undecaprenyl pyrophosphate synthase reaction”. Biochemistry 39: 10936-10942. PMID 10978182. 
  8. Kharel, Y., Zhang, Y.W., Fujihashi, M., Miki, K. and Koyama, T. (2003). „Significance of highly conserved aromatic residues in Micrococcus luteus B-P 26 undecaprenyl diphosphate synthase”. J. Biochem. 134: 819-826. PMID 14769870. 

Literatura uredi

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