Arabinan endo-1,5-alpha-L-arabinosidase

Arabinan endo-1,5-alpha-L-arabinanase (EC 3.2.1.99, endo-1,5-alpha-L-arabinanase, endo-alpha-1,5-arabanase, endo-arabanase, 1,5-alpha-L-arabinan 1,5-alpha-L-arabinanohydrolase) is an enzyme with systematic name 5-alpha-L-arabinan 5-alpha-L-arabinanohydrolase.^[1]^[2]^[3]^[4] This enzyme catalyses the following chemical reaction

Endohydrolysis of (1->5)-alpha-arabinofuranosidic linkages in (1->5)-arabinans

This enzyme is most active on linear 1,5-alpha-L-arabinan.

References

↑ Kaji, A. and Saheki, T. (1975). "Endo-arabinanase from Bacillus subtilis F-11". Biochim. Biophys. Acta 410: 354–360. doi:10.1016/0005-2744(75)90237-5. PMID 1096.
↑ Weinstein, L. and Albersheim, P. (1979). "Structure of plant cell walls. IX. Purification and partial characterization of a wall-degrading endo-arabinase and an arabinosidase from Bacillus subtilis". Plant Physiol. 63: 425–432. doi:10.1104/pp.63.3.425. PMID 16660741.
↑ Flipphi, M.J., Panneman, H., van der Veen, P., Visser, J. and de Graaff, L.H. (1993). "Molecular cloning, expression and structure of the endo-1,5-α-L-arabinase gene of Aspergillus niger". Appl. Microbiol. Biotechnol. 40: 318–326. doi:10.1007/bf00170387. PMID 7764386.
↑ Leal, T.F. and de Sa-Nogueira, I. (2004). "Purification, characterization and functional analysis of an endo-arabinanase (AbnA) from Bacillus subtilis". FEMS Microbiol. Lett. 241: 41–48. doi:10.1016/j.femsle.2004.10.003. PMID 15556708.

External links

Arabinan endo-1,5-alpha-L-arabinanase at the US National Library of Medicine Medical Subject Headings (MeSH)

Hydrolase: sugar hydrolases (EC 3.2)

3.2.1: Glycoside hydrolases

Disaccharidase	Sucrase/Sucrase-isomaltase/Invertase Maltase Trehalase Lactase

Glucosidases	Cellulase Alpha-glucosidase Acid Neutral AB Neutral C Beta-glucosidase cytosolic Debranching enzyme

Other	Amylase Alpha-amylase Chitinase Lysozyme Neuraminidase NEU1 NEU2 NEU3 NEU4 Bacterial neuraminidase Viral neuraminidase Galactosidases Alpha Beta alpha-Mannosidase Glucuronidase Hyaluronidase Pullulanase Glucosylceramidase lysosomal non-lysosomal Galactosylceramidase Alpha-N-acetylgalactosaminidase NAGA Alpha-N-acetylglucosaminidase Fucosidase Hexosaminidase HEXA HEXB Iduronidase Maltase-glucoamylase Heparanase HPSE2

3.2.2: Hydrolysing
N-Glycosyl compounds

DNA glycosylases: Oxoguanine glycosylase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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