Glycoside Hydrolase Family 43 / Subf 26

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 (1451); Uniprot accession (175); PDB accession (8); 3D entries (4); cryst (0)
All (1420) Bacteria (1392) Eukaryota (28) Structure (4) Characterized (12)
Bacteria
Protein Name EC# OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
Subf
 β-xylosidase (Abf2;CAC1529)   Clostridium acetobutylicum ATCC 824 AAK79496.1
NP_348156.1
Q97IW1
3CPN[A] 1.55
3K1U[A] 1.55
26
 α-L-arabinofuranosidase II (Araf43;LbAraf43;N624_1993) 3.2.1.- Lactobacillus brevis DSM 1269 / TMW 1.313 APU52333.1
KIO95879.1
 
5M8B[A,B] 1.90
26
 exo-α-1,5-L-arabinofuranosidase (SaAraf43A;SAV1043) (Araf43A) 3.2.1.- Streptomyces avermitilis MA-4680 = NBRC 14893 BAC68753.1
NP_822218.1
 
3AKF[A] 2.20
3AKG[A] α-L-Araf
α-L-Araf-(1-5)-α-L-Araf
1.80
3AKH[A] α-L-Araf
α-L-Araf-(1-5)-α-L-Araf
1.70
3AKI[A] α-L-Araf1N-(1-1)-<non_carb>
2.00
26
 α-L-arabinofuranosidase (Araf43;WAraf43) 3.2.1.- Weissella sp. 142 APU52332.1  
5M8E[A,B] 2.00
26
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