Glycoside Hydrolase Family 51

Activities in Familyendoglucanase (EC 3.2.1.4); endo-β-1,4-xylanase (EC 3.2.1.8); β-xylosidase (EC 3.2.1.37); α-L-arabinofuranosidase (EC 3.2.1.55); cellobiohydrolase (EC 3.2.1.91)
Mechanism Retaining
ClanGH-A
3D Structure Status( β / α ) 8 barrel
Catalytic Nucleophile/BaseGlu (experimental)
Catalytic Proton DonorGlu (experimental)
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (5906); Uniprot accession (102); PDB accession (34); 3D entries (8); cryst (0)
Bacteria
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D
 α-L-arabinofuranosidase 51A (Araf51;CtAraf51A;Cthe_2548) (Araf51A) 3.2.1.55 pubmed
Acetivibrio thermocellus ATCC 27405 ABN53749.1
ZP_00503782.1
A3DIH0 2C7F[A,B,C,D,E,F]
2C8N[A,B,C,D,E,F]
5O7Z[A,B,C,D,E,F]
5O80[A,B,C,D,E,F]
5O81[A,B,C,D,E,F]
5O82[A,B,C,D,E,F]
 Clo1313_0133 3.2.1.55 pubmed
Acetivibrio thermocellus DSM 1313 ADU73229.1    
 cellulase / xylanase (CelB;Aaci_0048) 3.2.1.4
3.2.1.8
pubmed
pubmed
Alicyclobacillus acidocaldarius subsp. acidocaldarius DSM 446 ACV57112.1
CAD86595.1
C8WQ08
Q84E48
 
 α-L-arabinofuranosidase (Ac-Abf51A) (Abf51A) 3.2.1.55 pubmed
Alicyclobacillus sp. A4 ALK02878.1 A0A0P0ISK8  
 β-1,4-glucanase (CelA4) (acidic) 3.2.1.4 pubmed
Alicyclobacillus sp. A4 ADI82825.1 D7PI32  
 endoglucanase (CelVA) 3.2.1.4 pubmed
Alicyclobacillus vulcanalis DSM 16176 CEH24710.1 A0A0F7TAS1  
 α-L-arabinofuranosidase (Abf) 3.2.1.55 pubmed
Anoxybacillus kestanbolensis AC26SARI ACB54691.1 B2D088  
 α-L-arabinofuranosidase (AraB) 3.2.1.55 doi
Bacillus pumilus ARA ABC55452.1 Q2MJP5  
 α-L-arabinofuranosidase I (ArfA) 3.2.1.55 pubmed
Bacillus pumilus PS213 CAJ77816.1 Q2HPJ2  
 α-L-arabinofuranosidase 1 (AbfA;BSU28720) 3.2.1.55 pubmed
Bacillus subtilis subsp. subtilis str. 168 CAA99595.1
AIY94201.1
AQR82899.1
AQR87114.1
CAA61937.1
CAB14832.1
CAB14832.2
NP_390750.1
A0A6M4JKK3
P94531
 
 α-L-arabinofuranosidase 2 (AbfA2;Abf2;Xsa;Asd;BSU28510) 3.2.1.55 pubmed
Bacillus subtilis subsp. subtilis str. 168 CAA99576.1
ABW70629.1
AIY95537.1
AQR82876.1
AQR87091.1
CAB14811.1
CAB14811.2
NP_390729.1
A0A6M3ZF61
P94552
 
 α-L-arabinofuranosidase 2 (AsdII) 3.2.1.55 pubmed
Bacteroides ovatus V975 AAA50393.1 Q59219  
 α-L-arabinofuranosidase (BT0368) 3.2.1.55 pubmed
Bacteroides thetaiotaomicron VPI-5482 AAO75475.1
NP_809281.1
Q8AAU6  
 α-L-arabinofuranosidase (BT0348) 3.2.1.55 pubmed
Bacteroides thetaiotaomicron VPI-5482 AAO75455.1
NP_809261.1
Q8AAW4  
 α-L-arabinofuranosidase (XsA;AbfB;BAD_1205) 3.2.1.55 pubmed
Bifidobacterium adolescentis ATCC 15703 BAF39986.1 A1A2Q3  
 α-L-arabinofuranosidase (AbfB;BAD_1524) 3.2.1.55 pubmed
Bifidobacterium adolescentis ATCC 15703 BAF40305.1 A1A3M2  
 α-L-arabinofuranosidase (AbfB) 3.2.1.55 pubmed
Bifidobacterium longum B667 AAO84266.1 Q841V6
Q8G554
2Y2W[A,B,C,D,E,F]
 α-L-arabinofuranosidase (AfuB;AfuB-H1) 3.2.1.55 pubmed
Bifidobacterium longum H-1 ADT80795.1 E7CY70  
 α-L-arabinofuranosidase (AbfA;AbfA1;BL0544) 3.2.1.55 pubmed
Bifidobacterium longum NCC2705 AAN24368.1
NP_695732.1
Q8G6U4  
 arabinofuranosidase I (ArfI;CxAbf1) 3.2.1.55 pubmed
Breznakibacter xylanolyticus AAC38456.1 O68278  
 arabinofuranosidase II (ArfII;CxAbf2) 3.2.1.55 pubmed
Breznakibacter xylanolyticus AAC38457.1 O68279  
 α-L-arabinofuranosidase (CbAra51A;Athe_1103) (Ara51A) 3.2.1.55 pubmed
Caldicellulosiruptor bescii DSM 6725 ACM60204.1 B9MRA0  
 α-L-arabinofuranosidase (CsAraf;Csac_1561) 3.2.1.55 pubmed
Caldicellulosiruptor saccharolyticus DSM 8903 ABP67153.1 A4XJR8  
 α-L-arabinofuranosidase (AbfCelf;Celf_3321) 3.2.1.55 pubmed
Cellulomonas fimi ATCC 484 AEE47435.1 F4H166  
 α-L-arabinofuranosidase 51A (CJA_2769) (Abf51A) 3.2.1.55 pubmed
Cellvibrio japonicus Ueda107 ACE86344.1
AAK84947.1
B3PBK2
Q93LE0
 
 α-L-arabinofuranosidase (ArfA) 3.2.1.55 pubmed
Clostridium cellulovorans AAN05450.1 Q8GEE5  
 endo-β-1,3(4)-glucanase (Fisuc_2081 / FSU_2610) 3.2.1.6 pubmed
Fibrobacter succinogenes subsp. succinogenes S85 ACX75668.1
ADL24926.1
C9RJF1  
 endoglucanase 2 / F (Eg2;CelF;EgF;CBP-4;Fisuc_3111;FSU_0382) (Cel51A) 3.2.1.4 pubmed
Fibrobacter succinogenes subsp. succinogenes S85 AAC45377.1
ACX76691.1
ADL24814.1
BAA10965.1
C9RQE4
P71329
P77865
 
 α-L-arabinofuranosidase (LarbF;G11MC16DRAFT_1557) 3.2.1.55 pubmed
Geobacillus sp. G11MC16 EDY06090.1    
 α-L-arabinofuranosidase (AbF;GAFase) 3.2.1.55 pubmed
Geobacillus sp. KCTC 3012 ABM68633.1 A8QJ85  
 α-L-arabinofuranosidase (Abf2) 3.2.1.55 doi
Geobacillus stearothermophilus 12 ALB24935.1 A0A0U2GPG6  
 α-L-arabinofuranosidase (Abf1) 3.2.1.55 doi
Geobacillus stearothermophilus 12 ALB24934.1 A0A0U2GPK2  
 α-L-arabinofuranosidase (AbfA;HUS_CDS35) 3.2.1.55 pubmed
Geobacillus stearothermophilus T-6 NCIMB 40222 AAD45520.2
AAB33652.1
ACE73682.1
B3EYN4
Q9XBQ3
BBB[nd]
1PZ2[A,B]
1PZ3[A,B]
1QW8[A,B]
1QW9[A,B]
6SXU[AAA]
6SXV[A,B]
 α-L-arabinofuranosidase (AbfB;HUS_CDS33) 3.2.1.55 pubmed
Geobacillus stearothermophilus T-6 NCIMB 40222 ACE73681.1
AAD45519.1
B3EYN3
Q9XBQ4
 
 α-L-arabinofuranosidase (AbfA) 3.2.1.55 doi
Geobacillus thermoleovorans IT-08 ABD48560.1 Q27R95  
 α-L-arabinofuranosidase (Abf22-3) 3.2.1.55 pubmed
Leuconostoc sp. 22-3 AFD62907.1 H9BR50  
 α-L-arabinofuranosidase 1 (Abf1) 3.2.1.55 pubmed
Levilactobacillus brevis DSMZ 20054 ADJ95770.1 D9J2Q3  
 α-L-arabinofuranosidase 2 (Abf2) 3.2.1.55 pubmed
Levilactobacillus brevis DSMZ 20054 ADJ95771.1 D9J2Q4  
 α-L-arabinofuranosidase (Abf;Xsa;OENOO_34003) 3.2.1.55 pubmed
Oenococcus oeni ATCC BAA-1163 ADJ95768.1
EAV39988.1
A0NHN5
D9J2Q1
 
 α-L-arabinofuranosidase (AbfA;THSAbf) 3.2.1.55 pubmed
Paenibacillus sp. HanTHS1 ABZ10760.1 B1A0T7  
 α-L-arabinofuranosidase (AbfA;AbfATK4) 3.2.1.55 pubmed
Parageobacillus caldoxylosilyticus TK4 ABI34800.1 Q0GA82  
 α-arabinofuranosidase (AbfA;Araf3054) 3.2.1.55 pubmed
Rhodanobacter ginsenosidimutans Gsoil3054T / KCTC 22231?/?DSM 21013 ADM26764.1 E1AXG3  
 α-L-arabinofuranosidase 51A (Ara51A) 3.2.1.55 pubmed
Ruminococcus albus 8 AEE64774.1
ZP_08160912.1
E9SHS5  
 α-L-arabinofuranosidase I (AFase I) 3.2.1.55 pubmed
Streptomyces chartreusis GS901 BAA90771.1 P82593  
 α-L-arabinofuranosidase (AbfA) 3.2.1.55 pubmed
Streptomyces lividans 66 AAA61708.1 P53627  
 α-L-arabinofuranosidase (AFa) 3.2.1.55 pubmed
Streptomyces sp. I10-1 BAH02662.1 B6ZGN5  
 α-L-arabinofuranosidase (ORF2125) 3.2.1.55 pubmed
Streptomyces sp. JHA19 BAS29530.1 A0A0K2SQX3  
 α-L-arabinofuranosidase (Abf51S9) 3.2.1.55 pubmed
Streptomyces sp. S9 ACCC 41168 ACY69989.1 D1KTD5  
 α-L-arabinofuranosidase (AbjA;AbfD3;G51;TxAbf) 3.2.1.55 pubmed
Thermobacillus xylanilyticus D3 CAA76421.2 O69262 2VRK[A,B,C]
2VRQ[A,B,C]
6ZT6[A,B,C]
6ZT7[A,B,C]
6ZT8[A,B,C]
6ZT9[A,B,C]
6ZTA[A,B,C]
 α-L-arabinofuranosidase (ArfB) (Arf51B) 3.2.1.55 pubmed
Thermoclostridium stercorarium NCIMB 11754 AAC28125.1 O08457  
 α-L-arabinofuranosidase (AraA;TmAFase;TmAbf;Tm-AFase;TM0281) 3.2.1.55 pubmed
Thermotoga maritima MSB8 AAD35369.1
AGL49205.1
AHD17955.1
AKE28083.1
BAE02565.1
NP_228093.1
Q4R1J9
Q9WYB7
R4NNA3
3UG3[A,B,C,D,E,F]
3UG4[A,B,C,D,E,F]
3UG5[A,B,C,D,E,F]
4ATW[A,B,C,D,E,F]
 α-L-arabinofuranosidase (AraF;Tpet_0631) 3.2.1.55 pubmed
Thermotoga petrophila RKU-1 ABQ46651.1 A5IKC8 3S2C[A,B,C,D,E,F,G,H,I,J,K,L]
 α-L-arabinofuranosidase D3 3.2.1.55 pubmed
uncultured bacterium QBG80849.1    
 α-L-arabinofuranosidase E3 3.2.1.55 pubmed
uncultured bacterium QBG80848.1    
 α-L-arabinofuranosidase H4 3.2.1.55
3.2.1.91
pubmed
pubmed
uncultured bacterium QBG80847.1    
 endo-β-1,4-glucanase (SScel24;Lambda;Cel) 3.2.1.4 pubmed
uncultured bacterium CAF22222.1 Q5NJL7  
 cellulase (Lc-CelC) 3.2.1.4 pubmed
uncultured bacterium AHL27896.1 W8PBI6  
 XAC1286 3.2.1.55 pubmed
Xanthomonas citri pv. citri str. 306 AAM36157.1
NP_641621.1
Q8PMY9 6D25[A,B,C,D,E,F]
 α-L-arabinofuranosidase (XoAF;PXO_02260) 3.2.1.55 pubmed
Xanthomonas oryzae pv. oryzae PXO99A ACD60479.1 A0A0K0GNJ2
B2SJW2
 
Eukaryota
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D
 α-L-arabinofuranosidase / β-xylosidase (Asd1;AraF1;At3g10740) (Araf51A) 3.2.1.37
3.2.1.55
pubmed
pubmed
Arabidopsis thaliana AAF19575.1
AAK50089.1
AAN28883.1
AAO92261.1
AEE74949.1
ANM64546.1
ANM64547.1
ANM64548.1
BAD93969.1
BAD95302.1
NP_187685.1
A0A178VHD8
A0A1I9LPN8
Q84RC5
Q94JT7
Q9SG80
 
 α-L-arabinofuranosidase A (ArfA) 3.2.1.55 pubmed
Aspergillus awamori IFO4033 BAB21568.2 Q96X54  
 α-L-arabinofuranosidase A (AkabfA) (Abf51) 3.2.1.55 pubmed
Aspergillus kawachii IFO 4308 BAB96815.1 Q8NK90  
 α-L-arabinofuranosidase (AN1277.2) 3.2.1.55 pubmed
Aspergillus nidulans FGSC A4 EAA65870.1
ABF50847.1
C8VSG2
Q5BDV3
 
 α-L-arabinofuranosidase (AbfA;AnAbfA) 3.2.1.55 doi
Aspergillus niger ATCC 120120 ADG21260.1 D6QST5  
 α-L-arabinofuranosidase A (AbfA;ExoA;AnAbfA) 3.2.1.55 pubmed
Aspergillus niger CBS 120.49 / N400 AAC41644.1
AAE37582.1
CAA01904.1
D6QST5
P42254
 
 An01g00330 (AbfA) 3.2.1.55 pubmed
Aspergillus niger CBS 513.88 CAK43424.1 A2Q7E0  
 α-L-arabinofuranosidase (AbfA) 3.2.1.55 doi
Aspergillus niveus PR-2 AEQ94263.1 G8I078  
 α-L-arabinofuranosidase (AbfB) 3.2.1.55 pubmed
Aureobasidium melanogenum ATCC 20524 BAN70283.1 S6BFQ7  
 α-L-arabinofuranosidase (Abf3;AXHm2,3) 3.2.1.55 pubmed
Chrysosporium lucknowense C1 ADZ98861.1 F2X2F7  
 α-L-arabinofuranosidase (TlAbf51) 3.2.1.55 pubmed
Evansstolkia leycettana JCM12802 QEI10540.1    
 arabinoxylan arabinofuranohydrolase (AXAH-II;Axah2) 3.2.1.55 pubmed
Hordeum vulgare AFF58880.1
AAK21880.1
H9NHF6
Q9ATV7
 
 arabinoxylan arabinofuranohydrolase I (AXAH-I;Axah1) 3.2.1.55 pubmed
Hordeum vulgare AFF58879.1
AAK21879.1
H9NHF5
Q9ATV8
 
 α-L-arabinofuranosidase (Abf III;AXH-m) 3.2.1.55 pubmed
Meripilus giganteus CBS 521.91 CAL81200.1   6ZPS[AAA]
6ZPV[AAA]
6ZPW[AAA]
6ZPX[AAA]
6ZPY[AAA]
6ZPZ[AAA]
6ZQ0[AAA]
6ZQ1[AAA]
 α-L-arabinofuranosidase (OsARAF1;Os07g0686900) 3.2.1.55 pubmed
Oryza sativa Japonica Group BAC10349.1
BAD30290.1
BAF22602.1
BAT03296.1
C7J5E2
Q8LIG5
 
 α-L-arabinofuranosidase (OsARAF3;Os11g0131900) 3.2.1.55 pubmed
Oryza sativa Japonica Group BAF27505.1
BAG89431.1
BAT12528.1
BAT12529.1
A0A0P0XYH3
A3C891
Q0IUW0
Q2RAZ7
 
 α-L-arabinofuranosidase (Afq1;AFQ1) 3.2.1.55 pubmed
Penicillium chrysogenum 31B BAG71680.1
BAH70480.1
B5MGR0  
 α-L-arabinofuranosidase (PcAbf51C) (Abf51C) 3.2.1.55 pubmed
Penicillium chrysogenum 31B BAQ35745.1 A0A0C6EXX6  
 α-L-arabinofuranosidase (Abf;PoAbf;PLEOSDRAFT_1042120) 3.2.1.55 pubmed
Pleurotus ostreatus PC15 KDQ27940.1 A0A067NLQ2  
 α-L-arabinofuranosidase (Abf;PoAbf) 3.2.1.55 pubmed
Pleurotus sp. Florida ATCC MYA-2306 CCC33068.1
CCC33069.1
G0TES6  
 α-L-arabinofuranosidase (Pa_5_11670) (Abf51A) 3.2.1.55 pubmed
Podospora anserina S mat+ CAP62201.1
ADO14137.1
CDP29615.1
B2AFI2
E2GHW4
 
 α-L-arabinofuranosidase 2 (Abf2) 3.2.1.55 pubmed
Talaromyces purpureogenus MYA-38 ABO93602.1 A4UU45  
 α-L-arabinofuranosidase (TtABF51A; THITE_2125664) (TtABF51A) 3.2.1.55 doi
Thermothielavioides terrestris NRRL 8126 AEO63102.1 G2QWT8  
unclassified
Protein Name EC#ReferenceOrganismGenBank UniprotPDB/3D
 α-L-arabinofuranosidase 51A (G12-2;GH51(G12);BN138_164) (Abf51A) 3.2.1.55 pubmed
termite gut metagenome CCO20976.1 S0DFA3  
 α-L-arabinofuranosidase 51B-43C (G12-20;GH51-GH43(G12);BN138_182) (Abf51B-Abf43C) 3.2.1.55 pubmed
termite gut metagenome CCO20994.1 S0DDZ8  
 arabinofuranosidase #5 3.2.1.55 pubmed
unidentified AEF56862.1    
 arabinofuranosidase #4 3.2.1.55 pubmed
unidentified AEF56861.1    
 arabinofuranosidase #6 3.2.1.55 pubmed
unidentified AEF56856.1    
 arabinofuranosidase F1 3.2.1.55 pubmed
unidentified AEF56855.1    
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