Xylan endo-1,3-β-xylosidase explained

endo-1,3-β-Xylanase
Ec Number:	3.2.1.32
Cas Number:	9025-55-2

endo-1,3-β-Xylanase, [''xylanase'' (ambiguous), ''endo-1,3-β-xylosidase'', ''1,3-β-xylanase'', ''1,3-xylanase'', ''β-1,3-xylanase'', ''endo-β-1,3-xylanase'', ''1,3-β-<small>D</small>-xylan xylanohydrolase'', ''xylan endo-1,3-β-xylosidase'' (misleading)] is an enzyme with systematic name 3-β-D-xylan xylanohydrolase.^{[1] [2] [3] [4] [5]} It catalyses the following chemical reaction:

Random endohydrolysis of (1→3)-β-D-glycosidic linkages in (1→3)-β-D-xylans

The enzyme is found mostly in marine bacteria, which break down the β(1,3)-xylan found in the cell wall of some green and red algae. It produces mainly xylobiose, xylotriose and xylotetraose.

Notes and References

1. Purification and some properties of β-1,3-xylanase from Aspergillus terreus A-07 . Chen, W.P. . Matsuo, M. . Tsuneo, Y. . Agric. Biol. Chem. . 1986 . 50 . 1183–1194 . 10.1271/bbb1961.50.1183 . 5 . free .
2. Purification and characterization of an endo-β-1,3-xylanase from Vibrio species . Aoki, T. . Araki, T. . Kitamikado, M. . Nippon Suisan Gakkaishi . 1988 . 54 . 277–281 . 10.2331/suisan.54.277 . 2 . free .
3. Araki T, Tani S, Maeda K, Hashikawa S, Nakagawa H, Morishita T . Purification and characterization of β-1,3-xylanase from a marine bacterium, Vibrio sp. XY-214 . Bioscience, Biotechnology, and Biochemistry . 63 . 11 . 2017–9 . November 1999 . 10635569 . 10.1271/bbb.63.2017 . free .
4. Araki T, Inoue N, Morishita T . Purification and characterization of β-1,3-xylanase from a marine bacterium, Alcaligenes sp. XY-234 . The Journal of General and Applied Microbiology . 44 . 4 . 269–274 . August 1998 . 12501421 . 10.2323/jgam.44.269 . free .
5. Okazaki F, Shiraki K, Tamaru Y, Araki T, Takagi M . The first thermodynamic characterization of β-1,3-xylanase from a marine bacterium . The Protein Journal . 24 . 7-8 . 413–21 . November 2005 . 16328734 . 10.1007/s10930-005-7637-8 .