Beta-galaktozidaza

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Beta-galaktozidaza
Beta-galactosidase (1tg7).png
Identifikatori
EC broj 3.2.1.23
CAS broj 2604851
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures

Beta-galaktozidaza (EC 3.2.1.23, beta-laktozidaza, maksilakt, hidrolakt, beta-D-laktozidaza, S 2107, laktozim, trilaktaza, beta-D-galaktanaza, orizatim, sumiklat) je enzim sa sistematskim imenom beta-D-galaktozid galaktohidrolaza.[1][2][3][4][5][6][7][8] Ovaj enzim katalizuje sledeću hemijsku reakciju

hidroliza terminalnih, neredukujućih beta-D-galaktoznih ostataks beta-D-galaktozidi

Pojedini enzimi iz ove grupe hidrolizuju alfa-L-arabinozide.

Reference[уреди]

  1. ^ Blakely, J.A. and MacKenzie, S.L. (1969). „Purification and properties of a β-hexosidase from Sporobolomyces singularis“. Can. J. Biochem. 47: 1021-1025. PMID 5389663. 
  2. ^ Kuby, S.A. and Lardy, H.A. (1953). „Purification and kinetics of β-D-galactosidase from Escherichia coli, strain K-12“. J. Am. Chem. Soc. 75: 890-896. 
  3. ^ Kuo, C.H. and Wells, W.W. (1978). „β-Galactosidase from rat mammary gland. Its purification, properties, and role in the biosynthesis of 6β-O-D-galactopyranosyl myo-inositol“. J. Biol. Chem. 253: 3550-3556. PMID 418065. 
  4. ^ Landman, O.E. (1957). „Properties and induction of β-galactosidase in Bacillus megaterium“. Biochim. Biophys. Acta 23: 558-569. PMID 13426167. 
  5. ^ Llanillo, M., Perez, N. and Cabezas, J.A. (1977). „β-Galactosidase and β-glucosidase activities of the same enzyme from rabbit liver“. Int. J. Biochem. 8: 557-564. 
  6. ^ Monod, J. and Cohn, M. (1952). „La biosynthèse induite des enzymes (adaptation enzymatique)“. Adv. Enzymol. Relat. Subj. Biochem. 13: 67-119. PMID 14943665. 
  7. ^ Wallenfels, K. and Malhotra, O.P. (1960). Boyer, P.D., Lardy, H. and Myrbäck, K.. ed. The Enzymes. 4 (2nd ed.). New York: Academic Press. стр. 409-430. 
  8. ^ Asp, N.G., Dahlqvist, A. and Koldovský, O. (1969). „Human small-intestinal β-galactosidases. Separation and characterization of one lactase and one hetero β-galactosidase“. Biochem. J. 114: 351-359. PMID 5822067. 

Литература[уреди]

  • Wallenfels, K. and Malhotra, O.P. (1960). Boyer, P.D., Lardy, H. and Myrbäck, K.. ed. The Enzymes. 4 (2nd ed.). New York: Academic Press. стр. 409-430. 

Spoljašnje veze[уреди]