Glycosyl hydrolase family 43 protein such as Bacteroides thetaiotaomicron VPI-5482 arabinofuranosidase Bt3655. This glycosyl hydrolase family 43 (GH43)-like family includes the characterized arabinofuranosidases (EC 3.2.1.55): Bacteroides thetaiotaomicron VPI-5482 (Bt3655;BT_3655) and Penicillium chrysogenum 31B Abf43B, as well as Bifidobacterium adolescentis ATCC 15703 beta-xylosidase (EC 3.2.1.37) BAD_1527. It belongs to the glycosyl hydrolase clan F (according to carbohydrate-active enzymes database (CAZY)) which includes family 43 (GH43) and 62 (GH62) families. GH43 includes enzymes with beta-xylosidase (EC 3.2.1.37), beta-1,3-xylosidase (EC 3.2.1.-), alpha-L-arabinofuranosidase (EC 3.2.1.55), arabinanase (EC 3.2.1.99), xylanase (EC 3.2.1.8), endo-alpha-L-arabinanases (beta-xylanases) and galactan 1,3-beta-galactosidase (EC 3.2.1.145) activities. GH43 are inverting enzymes (i.e. they invert the stereochemistry of the anomeric carbon atom of the substrate) that have an aspartate as the catalytic general base, a glutamate as the catalytic general acid and another aspartate that is responsible for pKa modulation and orienting the catalytic acid. Many GH43 enzymes display both alpha-L-arabinofuranosidase and beta-D-xylosidase activity using aryl-glycosides as substrates. A common structural feature of GH43 enzymes is a 5-bladed beta-propeller domain that contains the catalytic acid and catalytic base. A long V-shaped groove, partially enclosed at one end, forms a single extended substrate-binding surface across the face of the propeller.

Alpha-L-arabinofuranosidase [Carbohydrate transport and metabolism].

Alpha-L-arabinofuranosidase C-terminal domain. This family represents the C-terminus (approximately 200 residues) of bacterial and eukaryotic alpha-L-arabinofuranosidase (EC:3.2.1.55). This catalyzes the hydrolysis of nonreducing terminal alpha-L-arabinofuranosidic linkages in L-arabinose-containing polysaccharides.

Alpha-L-arabinofuranosidase C-terminus. This entry represents the C terminus (approximately 200 residues) of bacterial and eukaryotic alpha-L-arabinofuranosidase. This catalyses the hydrolysis of non-reducing terminal alpha-L-arabinofuranosidic linkages in L-arabinose-containing polysaccharides.

Glycosyl hydrolase families 43 and 62 form CAZY clan GH-F. This glycosyl hydrolase clan F (according to carbohydrate-active enzymes database (CAZY)) includes family 43 (GH43) and 62 (GH62). GH43 includes enzymes with beta-xylosidase (EC 3.2.1.37), beta-1,3-xylosidase (EC 3.2.1.-), alpha-L-arabinofuranosidase (EC 3.2.1.55), arabinanase (EC 3.2.1.99), xylanase (EC 3.2.1.8), endo-alpha-L-arabinanases (beta-xylanases) and galactan 1,3-beta-galactosidase (EC 3.2.1.145) activities. GH62 includes enzymes characterized as arabinofuranosidases (alpha-L-arabinofuranosidases; EC 3.2.1.55) that specifically cleave either alpha-1,2 or alpha-1,3-L-arabinofuranose side chains from xylans. GH43 are inverting enzymes (i.e. they invert the stereochemistry of the anomeric carbon atom of the substrate) that have an aspartate as the catalytic general base, a glutamate as the catalytic general acid and another aspartate that is responsible for pKa modulation and orienting the catalytic acid. Many of the enzymes in this family display both alpha-L-arabinofuranosidase and beta-D-xylosidase activity using aryl-glycosides as substrates. GH62 are also predicted to be inverting enzymes. A common structural feature of both, GH43 and GH62 enzymes, is a 5-bladed beta-propeller domain that contains the catalytic acid and catalytic base. A long V-shaped groove, partially enclosed at one end, forms a single extended substrate-binding surface across the face of the propeller.

ChainAAA, MgGH51 [Meripilus giganteus],6ZPV_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPW_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPX_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPY_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZPZ_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZQ0_AAA Chain AAA, MgGH51 [Meripilus giganteus],6ZQ1_AAA Chain AAA, MgGH51 [Meripilus giganteus]

Structureof the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_B Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_C Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_D Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_E Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_F Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_G Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_H Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_I Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_J Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_K Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],3S2C_L Structure of the thermostable GH51 alpha-L-arabinofuranosidase from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1]

Thecrystal structure of Arabinofuranosidase [Thermotoga maritima MSB8],4ATW_B The crystal structure of Arabinofuranosidase [Thermotoga maritima MSB8],4ATW_C The crystal structure of Arabinofuranosidase [Thermotoga maritima MSB8],4ATW_D The crystal structure of Arabinofuranosidase [Thermotoga maritima MSB8],4ATW_E The crystal structure of Arabinofuranosidase [Thermotoga maritima MSB8],4ATW_F The crystal structure of Arabinofuranosidase [Thermotoga maritima MSB8]

Crystalstructure of alpha-L-arabinofuranosidase from Thermotoga maritima ligand free form [Thermotoga maritima],3UG3_B Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima ligand free form [Thermotoga maritima],3UG3_C Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima ligand free form [Thermotoga maritima],3UG3_D Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima ligand free form [Thermotoga maritima],3UG3_E Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima ligand free form [Thermotoga maritima],3UG3_F Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima ligand free form [Thermotoga maritima],3UG4_A Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima arabinose complex [Thermotoga maritima],3UG4_B Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima arabinose complex [Thermotoga maritima],3UG4_C Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima arabinose complex [Thermotoga maritima],3UG4_D Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima arabinose complex [Thermotoga maritima],3UG4_E Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima arabinose complex [Thermotoga maritima],3UG4_F Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima arabinose complex [Thermotoga maritima],3UG5_A Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima xylose complex [Thermotoga maritima],3UG5_B Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima xylose complex [Thermotoga maritima],3UG5_C Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima xylose complex [Thermotoga maritima],3UG5_D Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima xylose complex [Thermotoga maritima],3UG5_E Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima xylose complex [Thermotoga maritima],3UG5_F Crystal structure of alpha-L-arabinofuranosidase from Thermotoga maritima xylose complex [Thermotoga maritima]

ChainA, Alpha-L-arabinofuranosidase [Thermobacillus xylanilyticus],6ZT6_B Chain B, Alpha-L-arabinofuranosidase [Thermobacillus xylanilyticus],6ZT6_C Chain C, Alpha-L-arabinofuranosidase [Thermobacillus xylanilyticus],6ZT7_A Chain A, Alpha-L-arabinofuranosidase [Thermobacillus xylanilyticus],6ZT7_B Chain B, Alpha-L-arabinofuranosidase [Thermobacillus xylanilyticus],6ZT7_C Chain C, Alpha-L-arabinofuranosidase [Thermobacillus xylanilyticus]

Extracellular exo-alpha-L-arabinofuranosidase OS=Streptomyces chartreusis OX=1969 PE=1 SV=1

Alpha-L-arabinofuranosidase 1 OS=Arabidopsis thaliana OX=3702 GN=ASD1 PE=1 SV=1

Alpha-L-arabinofuranosidase 2 OS=Arabidopsis thaliana OX=3702 GN=ASD2 PE=2 SV=1

Probable alpha-L-arabinofuranosidase A OS=Aspergillus flavus (strain ATCC 200026 / FGSC A1120 / IAM 13836 / NRRL 3357 / JCM 12722 / SRRC 167) OX=332952 GN=abfA PE=3 SV=2

Probable alpha-L-arabinofuranosidase A OS=Aspergillus oryzae (strain ATCC 42149 / RIB 40) OX=510516 GN=abfA PE=3 SV=2