Saharoza—1,6-a-glukan 3(6)-a-glukoziltransferaza

(Preusmjereno sa stranice GTF-I)

Saharoza—1,6-a-glukan 3(6)-a-glukoziltransferaza (EC 2.4.1.125, u vodi rastvorna glukanska sintaza, GTF-I, GTF-S, GTF-SI, saharoza-1,6-alfa-glukan 3(6)-alfa-glukoziltransferaza, saharoza:1,6-alfa-D-glukan 3-alfa- and 6-alfa-glukoziltransferaza, saharoza:1,6-, 1,3-alfa-D-glukan 3-alfa- and 6-alfa-D-glukoziltransferaza, saharoza:1,6-alfa-D-glukan 3(6)-alfa-D-glukoziltransferaza, gtfB (gen), gtfC (gen), gtfD (gen)) je enzim sa sistematskim imenom saharoza:(1->6)-alfa-D-glukan 3(6)-alfa-D-glukoziltransferaza.[1][2][3][4][5][6] Ovaj enzim katalizuje sledeću hemijsku reakciju

Saharoza—1,6-a-glukan 3(6)-a-glukoziltransferaza
Identifikatori
EC broj 2.4.1.125
CAS broj 81725-87-3
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB RCSB PDB PDBe PDBj PDBsum
(1) saharoza + [(1->6)-alfa-D-glukozil]n D-fruktoza + [(1->6)-alfa-D-glukozil]n+1
(2) saharoza + [(1->6)-alfa-D-glukozil]n D-fruktoza + (1->3)-alfa-D-glukozil[(1->6)-alfa-D-glukozil]n

Ovaj enzim je izolovan iz bakterije dentalnog karijesa Streptococcus mutans.

Reference uredi

  1. Mukasa, H., Shimamura, A. and Tsumori, H. (1982). „Purification and characterization of basic glucosyltransferase from Streptococcus mutans serotype c”. Biochim. Biophys. Acta 719: 81-89. PMID 6216919. 
  2. Shimamura, A., Tsumori, H. and Mukasa, H. (1982). „Purification and properties of Streptococcus mutans extracellular glucosyltransferase”. Biochim. Biophys. Acta 702: 72-80. PMID 6461359. 
  3. Tsumori, H., Shimamura, A. and Mukasa, H. (1985). „Purification and properties of extracellular glucosyltransferase synthesizing 1,6-, 1,3-α-D-glucan from Streptococcus mutans serotype a”. J. Gen. Microbiol. 131: 3347-3353. PMID 2937877. 
  4. Fujiwara, T., Tamesada, M., Bian, Z., Kawabata, S., Kimura, S. and Hamada, S. (1996). „Deletion and reintroduction of glucosyltransferase genes of Streptococcus mutans and role of their gene products in sucrose dependent cellular adherence”. Microb Pathog 20: 225-233. PMID 8737492. 
  5. Monchois, V., Willemot, R.M. and Monsan, P. (1999). „Glucansucrases: mechanism of action and structure-function relationships”. FEMS Microbiol. Rev. 23: 131-151. PMID 10234842. 
  6. Ito, K., Ito, S., Shimamura, T., Weyand, S., Kawarasaki, Y., Misaka, T., Abe, K., Kobayashi, T., Cameron, A.D. and Iwata, S. (2011). „Crystal structure of glucansucrase from the dental caries pathogen Streptococcus mutans”. J. Mol. Biol. 408: 177-186. PMID 21354427. 

Literatura uredi

Spoljašnje veze uredi