Arabinogalactan endo-1,4-beta-galactosidase

Arabinogalactan endo-beta-1,4-galactanase
Identifiers
EC number 3.2.1.89
CAS number 58182-40-4
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum

Arabinogalactan endo-beta-1,4-galactanase (EC 3.2.1.89, endo-1,4-beta-galactanase, galactanase, arabinogalactanase, ganB (gene)) is an enzyme with systematic name arabinogalactan 4-beta-D-galactanohydrolase.[1][2][3] This enzyme catalyses the following chemical reaction

The enzyme specifically hydrolyses (1->4)-beta-D-galactosidic linkages in type I arabinogalactans.

This enzyme is isolated from the bacterium Bacillus subtilis.

References

  1. ↑ Emi, S.; Yamamoto, T. (1972). "Purification and properties of several galactanases of Bacillus subtilis var. amylosacchariticus". Agric. Biol. Chem. 36: 1945–1954. doi:10.1271/bbb1961.36.1945.
  2. ↑ Labavitch JM, Freeman LE, Albersheim P (October 1976). "Structure of plant cell walls. Purification and characterization of a beta-1,4-galactanase which degrades a structural component of the primary cell walls of dicots". The Journal of Biological Chemistry. 251 (19): 5904–10. PMID 823153.
  3. ↑ Shipkowski S, Brenchley JE (December 2006). "Bioinformatic, genetic, and biochemical evidence that some glycoside hydrolase family 42 beta-galactosidases are arabinogalactan type I oligomer hydrolases". Applied and Environmental Microbiology. 72 (12): 7730–8. doi:10.1128/aem.01306-06. PMC 1694227. PMID 17056685.
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