| Activities in Family | β-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 |
| 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. in press (PMID: 26729713). |
| External resources | CAZypedia; |
| Commercial Enzyme Provider(s) | MEGAZYME; NZYTech; PROZOMIX; |
| Statistics | GenBank accession (441); Uniprot accession (83); PDB accession (14); 3D entries (5); cryst (0) |
| Bacteria | ||||||||
| Protein Name | EC# | Organism | GenBank | Uniprot | PDB/3D | Subf | ||
| 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] 2X8S[A,B] 2X8T[A,B] 4COT[A] |
4 | ||
| endo-α-1,5-L-arabinanase (Bt0360;BT_0360) (branched arabinan specific) | 3.2.1.99 | Bacteroides thetaiotaomicron VPI-5482 | AAO75467.1 NP_809273.1 |
Q8AAV4 | 4 | |||
| endo-α-1,5-L-arabinanase (Bt0367;BT_0367) (linear arabinan-specific) | 3.2.1.99 | Bacteroides thetaiotaomicron VPI-5482 | AAO75474.1 NP_809280.1 |
Q8AAU7 | 4 | |||
| endo-α-1,5-L-arabinanase (Csac_1560) | 3.2.1.99 | Caldicellulosiruptor saccharolyticus DSM 8903 | ABP67152.1 | A4XJR7 | 4 | |||
| endo-α-1,5-L-arabinanase (AbnA) (extracellular) | 3.2.1.99 | Geobacillus stearothermophilus T-6 NCIMB 40222 | ACE73680.1 | B3EYN2 | 5HO0[A] 5HO2[A] 5HO9[A,B] 5HOF[A] 5HP6[A] |
4 | ||
| endo-α-1,5-L-arabinanase (AbnZ3;YxiA3) | 3.2.1.99 | Paenibacillus polymyxa Z6 | AHA50064.1 | 4 | ||||
| endo-α-1,5-L-arabinanase (AbnZ2;Yxia1) | 3.2.1.99 | Paenibacillus polymyxa Z6 | AHA50063.1 | 4 | ||||
| endo-arabinanase (Abn;Tth Abn;Theth_1128) | 3.2.1.99 | Pseudothermotoga thermarum DSM 5069 | AEH51204.1 | 4 | ||||
| arabinanase (GH43D;RUM_09280) (Ara43D) | 3.2.1.99 | Ruminococcus champanellensis 18P13 = JCM 17042 | CBL17100.1 | D4LBV5 | 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] 4KC8[A,B,C] |
4 | ||
| endo-α-1,5-L-arabinanase (Arn2) | 3.2.1.99 | uncultured bacterium | ADB43998.1 | D2XML7 | 4 | |||
| endo-α-1,5-L-arabinanase (Arn2;ARN2) (partial) | 3.2.1.99 | uncultured rumen bacterium | 4KCA[A] 4KCA[B] |
4 | ||||
| unclassified | ||||||||
| Protein Name | EC# | Organism | GenBank | Uniprot | PDB/3D | Subf | ||
| arabinanase 43A (G12-10;GH43b(G12);BN138_172) (Abn43A) | 3.2.1.99 | termite gut metagenome | CCO20984.1 | 4 | ||||
| exo-α-L-1,5-arabinanase 43B (G12-19;GH43a(G12);BN138_181) (Abn43B) | 3.2.1.- | termite gut metagenome | CCO20993.1 | 4 | ||||
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