Activities in Sub Family	Exo-α-1,5-L-arabinofuranosidase (EC 3.2.1.-); [inverting] endo-α-1,5-L-arabinanase (EC 3.2.1.99);
Mechanism	Inverting e
Clan	GH-F
3D Structure Status	5-fold β-propeller
Catalytic Nucleophile/Base	Asp
Catalytic Proton Donor	Glu
Note	Many members have been assigned to subfamilies as described by Mewis et al. (2016) Appl. Environm. Microbiol. 82:1686-1692 (PMID: 26729713).
External resources	CAZypedia;
Commercial Enzyme Provider(s)	MEGAZYME; NZYTech; PROZOMIX;
Statistics	GenBank accession (28); Uniprot accession (18); PDB accession (14); 3D entries (5); cryst (0)

Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	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		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	A0A6M4JQW9 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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