Glycoside Hydrolase Family 43 / Subf 16

Activities in Familyβ-xylosidase (EC 3.2.1.37); α-L-arabinofuranosidase (EC 3.2.1.55); arabinanase (EC 3.2.1.99); xylanase (EC 3.2.1.8); galactan 1,3-β-galactosidase (EC 3.2.1.145); α-1,2-L-arabinofuranosidase (EC 3.2.1.-); exo-α-1,5-L-arabinofuranosidase (EC 3.2.1.-); [inverting] exo-α-1,5-L-arabinanase (EC 3.2.1.-); β-1,3-xylosidase (EC 3.2.1.-)
Activities in Sub Family
Mechanism Inverting
ClanGH-F
3D Structure Status5-fold β-propeller
Catalytic Nucleophile/BaseAsp
Catalytic Proton DonorGlu
NoteMany members have been assigned to subfamilies as described by Mewis et al. (2016) Appl. Environm. Microbiol. in press (PMID: 26729713).
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (332); Uniprot accession (48); PDB accession (7); 3D entries (2); cryst (0)
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3DSubf
 arabinoxylan α-arabinofuranosidase / AXH-m23 (XynD) (Arf43A=Axh43A) 3.2.1.55 Bacillus licheniformis SVD1 BAL45491.1     16
 arabinoxylan arabinofuranohydrolase (AXH) (Axh43A) 3.2.1.55 Bacillus sp. BP-7 AKF02745.1     16
 arabinoxylan α-L-1,3-arabinofuranohydrolase (XynD;BsAXH-m23;BSU18160) 3.2.1.55 Bacillus subtilis subsp. subtilis str. 168 CAB13699.1
AIY93126.1
AQR81807.1
AQR86021.1
NP_389698.1
Q45071 3C7E[A]
3C7F[A]
3C7G[A]
3C7H[A]
3C7O[A]
16
 β-xylosidase / α-L-arabinofuranosidase (XynF) 3.2.1.37
3.2.1.55
Caldicellulosiruptor saccharolyticus AAB87371.1 O30426   16
 bifunctional α-L-arabinofuranosidase (XynF;Csac_2411) 3.2.1.55 Caldicellulosiruptor saccharolyticus DSM 8903 ABP67988.1 A4XM53   16
 xylanase C (XynC) (multidomain protein) 3.2.1.8 Caldicellulosiruptor sp. Rt69B.1 AAB95326.1 O52374   16
 bifunctional β-1,4-xylanase / α-L-arabinosidase (XynA) 3.2.1.55
3.2.1.8
Caldicellulosiruptor sp. Tok7B.1 AAD30363.1 Q9X3P5   16
 β-xylosidase (CGSCsYakCAS_10615) (fragment) (Xyn43A) 3.2.1.- Cellulosilyticum ruminicola CGMCC 1.5065 ACZ98594.1 D2KFJ2   16
 α-L-arabinofuranosidase 43A (XynD) (formerly xylanase D) (Xyn43A) 3.2.1.55 Paenibacillus polymyxa ATCC 842 CAA40378.1 P45796   16
 α-L-arabinofuranosidase (Ct43Araf;CtAbf43A;CtGh43;Cthe_1271) (Abf43A) 3.2.1.55 Ruminiclostridium thermocellum ATCC 27405 ABN52503.1 A3DEX4 5A8C[A]
5A8D[A]
16
 α-L-arabinofuranosidase (GH43B;RUM_14020) (Abf43B) 3.2.1.55 Ruminococcus champanellensis 18P13 = JCM 17042 CBL17514.1 D4LD19   16
 bifunctional xylanase α-L-arabinofuranosidase (GH10B;GH43E;RUM_15940) (Xyn10B-Abf43E) 3.2.1.55
3.2.1.8
Ruminococcus champanellensis 18P13 = JCM 17042 CBL17682.1 D4LDI7   16
unclassified
Protein Name EC#OrganismGenBank UniprotPDB/3DSubf
 multimodular xylanase (fragment) 3.2.1.- uncultured organism ADD61461.1 D9ZDQ7   16
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