Glycoside Hydrolase Family 43 / Subf 4

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 (474); Uniprot accession (83); PDB accession (14); 3D entries (5); cryst (0)
Bacteria
Protein Name EC# OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
Subf
 BLi04220 / BL00219 (YxiA)   Bacillus licheniformis DSM 13 = ATCC 14580 AAU43033.1
AAU25654.1
AAU25654.2
ACR87831.1
CAF05510.1
CAV28398.1
Q65D31
3LV4[A,B] 1.70
4
 endo-α-1,5-L-arabinanase (Abn2;YxiA;J3A;BSU39330) (Arb43B) 3.2.1.99 Bacillus subtilis subsp. subtilis str. 168 CAB15969.2
ACB06752.1
AIY95249.1
AQR83975.1
AQR88190.1
CAB15969.1
NP_391812.1
B3FRL6
P42293
2X8F[A,B] 1.90
2X8S[A,B] α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf
1.50
2X8T[A,B] 1.79
4COT[A] 1.90
4
 endo-α-1,5-L-arabinanase (AbnA) (extracellular) 3.2.1.99 Geobacillus stearothermophilus T-6 NCIMB 40222 ACE73680.1 B3EYN2
5HO0[A] 2.35
5HO2[A] 2.37
5HO9[A,B] α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf
2.85
5HOF[A] α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf-(1-5)-α-L-Araf
2.96
5HP6[A] 2.09
4
 endo-α-1,5-L-arabinanase (AbnA;TpABN;Tpet_0637) 3.2.1.99 Thermotoga petrophila RKU-1 ABQ46657.1 A5IKD4
4KC7[A,B,C] 1.75
4KC8[A,B,C] 1.76
4
 endo-α-1,5-L-arabinanase (Arn2;ARN2) (partial) 3.2.1.99 uncultured rumen bacterium    
4KCA[A] 1.90
4KCA[B] 1.90
4
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