Glycoside Hydrolase Family 43

Known Activitiesβ-xylosidase (EC 3.2.1.37); β-1,3-xylosidase (EC 3.2.1.-); 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)
Mechanism Inverting
ClanGH-F
3D Structure Status5-fold β-propeller
Catalytic Nucleophile/BaseAsp
Catalytic Proton DonorGlu
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (2113); Uniprot accession (1256); PDB accession (40); 3D entries (22); cryst (4)
All (1989) Archaea (9) Bacteria (1770) Eukaryota (201) unclassified (9) Structure (22 - 4 cryst) Characterized (84)
Bacteria
Protein Name EC#OrganismGenBankUniprotPDB/3D
 β-xylosidase/α-L-arabinofuranosidase (XynA) 3.2.1.37
3.2.1.55
Azospirillum irakense KBC1 AAF66622.1 Q9LAE3  
 β-xylosidase (XynB;XylBH43;BH3683) 3.2.1.37 Bacillus halodurans C-125 BAB07402.1
NP_244550.1
Q9K6P5 1YRZ[A,B]
 β-xylosidase (XynB) 3.2.1.37 Bacillus pumilus IPO CAA29235.1 P07129.2  
 β-xylosidase (XynB) 3.2.1.37 Bacillus pumilus PLS AAC97375.1 Q9Z477  
 β-xylosidase (XylB) 3.2.1.37 Bacillus sp. KK-1 AAC27699.1 O52729  
 arabinan endo-α-1,5-L-arabinosidase 3.2.1.99 Bacillus subtilis IFO3134 BAA20372.1 O07078  
 endo-α-1,5-L-arabinanase (Abn2;YxiA;J3A;BSU39330) (Arb43B) 3.2.1.99 Bacillus subtilis subsp. subtilis str. 168 ACB06752.1
BAA06646.1
CAB15969.1
CAB15969.2
NP_391812.1
B3FRL6
P42293
2X8F[A,B]
2X8S[A,B]
2X8T[A,B]
 endo-α-1,5-L-arabinanase (AbnA;BSU28810) (Arb43A) 3.2.1.99 Bacillus subtilis subsp. subtilis str. 168 AAV87172.1
CAA99586.1
CAB14841.1
CAB14841.2
NP_390759.1
P94522 1UV4[A]
 β-1,4-xylosidase (XynB;YnaK;BSU17580) 3.2.1.37 Bacillus subtilis subsp. subtilis str. 168 AAB41091.1
CAB13642.1
CAB13642.2
NP_389640.1
P94489 1YIF[A,B,C,D]
 arabinoxylan α-L-arabinofuranohydrolase (XynD;BsAXH-m2,3;BSU18160) 3.2.1.55 Bacillus subtilis subsp. subtilis str. 168 CAB13699.1
NP_389698.1
Q45071 3C7E[A]
3C7F[A]
3C7G[A]
3C7H[A]
3C7O[A]
 β-xylosidase/α-L-arabinofuranosidase (XSA) 3.2.1.37
3.2.1.55
Bacteroides ovatus V975 AAB08024.1
ACA34973.1
B2KZK6
P49943
 
 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
   
 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
   
 α-L-arabinofuranosidase (Bt3655;BT_3655) (single substitution specific) 3.2.1.55 Bacteroides thetaiotaomicron VPI-5482 AAO78760.1
NP_812566.1
   
 α-L-arabinofuranosidase (Bt2852;BT_2852) (single substitution specific) 3.2.1.55 Bacteroides thetaiotaomicron VPI-5482 AAO77958.1
NP_811764.1
   
 α-1,2-L-arabinofuranosidase (Bt0369;BT_0369) 3.2.1.- Bacteroides thetaiotaomicron VPI-5482 AAO75476.1
NP_809282.1
   
 α-L-arabinofuranosidase (Bt3094;BT_3094) 3.2.1.55 Bacteroides thetaiotaomicron VPI-5482 AAO78200.1
NP_812006.1
   
 double substituted xylan α-1,3-L-arabinofuranosidase d3 (AXHd3;AXH-d3;BAD_0301) 3.2.1.55 Bifidobacterium adolescentis ATCC 15703 AAO67499.1
BAF39082.1
A1A049
Q5JB56
 
 α-L-arabinofuranosidase (AbfA;BAD_0423) 3.2.1.55 Bifidobacterium adolescentis ATCC 15703 BAF39204.1 A1A0H1  
 β-xylosidase C (XylC;XynB;BAD_0428) 3.2.1.37 Bifidobacterium adolescentis ATCC 15703 BAF39209.1 A1A0H6  
 β-xylosidase (BIF_00092) 3.2.1.37 Bifidobacterium animalis subsp. lactis Bb12 ADC85541.1 D3R467  
 β-xylosidase / α-L-arabinofuranosidase (XylB) 3.2.1.37
3.2.1.55
Butyrivibrio fibrisolvens GS 113 AAA63610.1 P45982  
 β-xylosidase/arabinofuranosidase (XynF) 3.2.1.37
3.2.1.55
Caldicellulosiruptor saccharolyticus AAB87371.1 O30426  
 β-xylosidase/arabinofuranosidase (XynF) 3.2.1.37
3.2.1.55
Caldicellulosiruptor saccharolyticus AAB87371.1 O30426  
 endo-α-1,5-L-arabinanase (Csac_1560) 3.2.1.99 Caldicellulosiruptor saccharolyticus DSM 8903 ABP67152.1 A4XJR7  
 bifunctional α-L-arabinofuranosidase (XynF;Csac_2411) 3.2.1.55 Caldicellulosiruptor saccharolyticus DSM 8903 ABP67988.1 A4XM53  
 bifunctional α-L-arabinofuranosidase (XynF;Csac_2411) 3.2.1.55 Caldicellulosiruptor saccharolyticus DSM 8903 ABP67988.1 A4XM53  
 xylanase/arabinosidase (XynA) 3.2.1.55 Caldicellulosiruptor sp. Tok7B.1 AAD30363.1 Q9X3P5  
 endo-α-1,5-L-arabinanase / exo-α-1,5-L-arabinanase 43A (ArbA;CJA_0805) (Arb43A) 3.2.1.-
3.2.1.99
Cellvibrio japonicus Ueda107 ACE84667.1
CAA71485.1
B3PKP8
P95470
1GYD[B]
1GYE[B]
1GYH[A,B,C,D,E,F]
 β-xylosidase 43A (CJA_3070) (Xyl43A=Gly43G) 3.2.1.37 Cellvibrio japonicus Ueda107 ACE82692.1 B3PDB2  
 exo-α-1,5-L-arabinofuranosidase 43K (CJA_3012) (Abf43K) 3.2.1.- Cellvibrio japonicus Ueda107 ACE82749.1 B3PD54  
 α-1,2-L-arabinofuranosidase 43A (CJA_3018) (arabinan-specific) (Abf43A=Gly43N) 3.2.1.- Cellvibrio japonicus Ueda107 ACE83886.1 B3PD60 3QED[A,B,C,D]
3QEE[A,B]
3QEF[A,B]
 exo-α-1,5-L-arabinofuranosidase 43L (CJA_0806) (Abf43L) 3.2.1.- Cellvibrio japonicus Ueda107 ACE84379.1 B3PKP9  
 β-xylosidase / α-L-arabinofuranosidase 3.2.1.37
3.2.1.55
Clostridium stercorarium BAA02527.1 P48790  
 β-xylosidase (Xyl43B) (Xyl43B) 3.2.1.37 Clostridium stercorarium F-9 BAC87941.1 Q76EC8  
 α-arabinofuranosidase (ArfA) (fragment) (Arf43A) 3.2.1.55 Clostridium stercorarium NCIMB 11745 CAD48310.1 Q8GJ41  
 exo-β-1,3-galactanase (Ct1,3Gal43A; Cthe_0661) (1,3Gal43A) 3.2.1.145 Clostridium thermocellum ATCC 27405 ABN51896.1 A3DD67  
 arabinoxylan α-L-arabinofuranosidase (Axh1;Fisuc_1769;FSU_2269) 3.2.1.55 Fibrobacter succinogenes subsp. succinogenes S85 ACX75362.1
ADL24843.1
C9RS26  
 β-xylosidase (XynB3) 3.2.1.37 Geobacillus stearothermophilus T-6 NCIMB 40222 AAT98625.1
ABI49959.1
Q09LX0 2EXH[A]
2EXI[A]
2EXJ[A]
2EXK[A]
 α-1,5-L-arabinanase (AbnB) (intracellular) 3.2.1.99 Geobacillus stearothermophilus T-6 NCIMB 40222 ACE73676.1 B3EYM8 3CU9[A]
3D5Y[A]
3D5Z[A]
3D60[A]
3D61[A]
 endo-α-1,5-L-arabinanase (AbnA) (extracellular) 3.2.1.99 Geobacillus stearothermophilus T-6 NCIMB 40222 ACE73680.1 B3EYN2  
 endo-α-1,5-L-arabinanase (Abn-ts) 3.2.1.99 Geobacillus thermodenitrificans TS-3 BAB64339.1 Q93HT9 1WL7[A]
 β-xylosidase (Xyl) (Xyl43A) 3.2.1.37 Geobacillus thermoleovorans IT-08 ABC75004.1 Q2I2N4 cryst
 α-L-arabinofuranosidase (OB2087) 3.2.1.55 Oceanobacillus iheyensis HTE831 BAC14043.1
NP_693008.1
Q8EPL4  
 xylanase D / β-xylosidase / α-L-arabinofuranosidase (XynD) (Xyn43A) 3.2.1.37
3.2.1.55
Paenibacillus polymyxa ATCC 842 CAA40378.1 P45796  
 β-xylosidase /α-L-arabinofuranosidase (XylC) 3.2.1.37
3.2.1.55
Paenibacillus woosongensis ADV16404.1    
 β-xylosidase (XynB;Orf0389;00389-GPBOY) 3.2.1.37 Prevotella bryantii B14 CAA89208.1
CAD21010.1
P48791
Q7AUW6
 
 arabinoxylan arabinofuranohydrolase (ORF2351) (Ara43A) 3.2.1.55 Prevotella bryantii B14 ADI70680.1 D7SFH6  
 β-xylosidase / arabinofuranosidase (Xsa;Sxa) 3.2.1.37
3.2.1.55
Selenomonas ruminantium GA192 AAB97967.1 O52575 3C2U[A,B,C,D]
 exo-α-1,5-L-arabinofuranosidase (SAV1043) (Araf43A) 3.2.1.- Streptomyces avermitilis MA-4680 BAC68753.1
NP_822218.1
  3AKF[A]
3AKG[A]
3AKH[A]
3AKI[A]
 exo-β-1,3-galactanase (Sa1,3Gal43A;SAV2109) (1,3Gal43A) 3.2.1.145 Streptomyces avermitilis MA-4680 BAC69820.1
NP_823285.1
   
 exo-α-1,5-L-arabinofuranosidase II (AFase II) 3.2.1.- Streptomyces chartreusis GS901 B59296
BAA90772.1
P82594  
 β-xylosidase (Tfu_1616) (Xyl43A) 3.2.1.37 Thermobifida fusca YX AAZ55651.1 Q47PG8  
 endo-α-1,5-L-arabinanase (AbnA;Tpet_0637) 3.2.1.99 Thermotoga petrophila RKU-1 ABQ46657.1 A5IKD4 cryst
 α-L-arabinofuranosidase/β-xylosidase (DeaX) 3.2.1.37
3.2.1.55
uncultured bacterium ACF39706.1 B8QP77  
 exo-α-1,5-L-arabinanase (Arn3) 3.2.1.- uncultured bacterium ADB43999.1 D2XML8  
 endo-α-1,5-L-arabinanase (Arn2) 3.2.1.99 uncultured bacterium ADB43998.1 D2XML7  
 α-L-arabinofuranosidase / β-xylosidase (deAFc) 3.2.1.37
3.2.1.55
uncultured bacterium ABB92159.1 A0S5D8  
 endo-β-1,4-xylanase (UX66;Orf66) 3.2.1.8 uncultured bacterium URE4 ACM91046.1 C0K016  
 endo-β-1,4-xylanase (UX66;Orf66) 3.2.1.8 uncultured bacterium URE4 ACM91046.1 C0K016  
 β-1,4-xylosidase / α-L-arabinofuranoside (RuXyn1) 3.2.1.37
3.2.1.55
uncultured rumen bacterium ADO20354.1 E3TBJ3  
 β-1,3-xylosidase (XloA) 3.2.1.- Vibrio sp. XY-214 BAF98235.1 A9ZND1  
Eukaryota
Protein Name EC#OrganismGenBankUniprotPDB/3D
 arabinan endo-α-1,5-L-arabinosidase (Ara1) 3.2.1.99 Aspergillus aculeatus CBS 101.43 AAG27441.1 Q9HFS9  
 endo-α-1,5-L-arabinosidase (AN8007.2) 3.2.1.99 Aspergillus nidulans FGSC A4 ABF50890.1
EAA58810.1
C8V5S3  
 endo-α-1,5-L-arabinosidase (AN6352.2) 3.2.1.99 Aspergillus nidulans FGSC A4 ABF50876.1
EAA58736.1
C8V0Y7  
 An09g01190 (AbnA) 3.2.1.99 Aspergillus niger CBS 513.88 CAK49041.1 A2QT85  
 arabinan endo-α-1,5-L-arabinosidase A (AbnA) 3.2.1.99 Aspergillus niger CBS120.49 / N400 AAA32682.1
AAE37583.1
P42256  
 β-xylosidase (XylB;AO090005000698) 3.2.1.37 Aspergillus oryzae RIB40 BAE55732.1    
 endo-arabinase (Abn1) 3.2.1.99 Chrysosporium lucknowense C1 ADZ98858.1    
 arabinofuranosidase (Abn4) 3.2.1.- Chrysosporium lucknowense C1 ADZ98860.1    
 arabinoxylan hydrolase / double substituted xylan α-1,3-L-arabinofuranosidase (Abn7;AXHd) 3.2.1.55 Chrysosporium lucknowense C1 ADZ98862.1    
 β-xylosidase (Xyp1) 3.2.1.37 Cochliobolus carbonum AAC67554.1 O93912  
 β-1,4-xylosidase (XyloA;fg11468) (7164) 3.2.1.37 Gibberella zeae PH-1 XP_391644.1    
 β-xylosidase/α-L-arabinofuranosidase (Xylo/ArabA;fg11494) (7168) 3.2.1.37
3.2.1.55
Gibberella zeae PH-1 XP_391670.1    
 double substituted xylan α-1,3-L-arabinofuranosidase (α-araF;AXHd3;;Abf II) 3.2.1.55 Humicola insolens DSM 18000 CAL81199.1    
 exo-β-1,3-galactanase (Il3Gal) 3.2.1.145 Irpex lacteus NBRC 5367 BAH29957.1 B9ZZS1  
 β-1,4-xylosidase (PtXyl43) (Xyl43) 3.2.1.37 Paecilomyces sp. J18 / Paecilomyces thermophila J18 ADM33794.1    
 arabinan endo-α-1,5-L-arabinosidase (AbnC;Abnc) 3.2.1.99 Penicillium chrysogenum 31B BAD15018.1 Q75WE6  
 endo-α-1,5-L-arabinanase (AbnS1) 3.2.1.99 Penicillium chrysogenum 31B BAD89094.1
BAD89094.2
BAJ49868.1
Q5H7M8 cryst
 β-xylosidase S2 3.2.1.37 Penicillium herquei IFO 4674 BAC75546.1 Q870E8  
 α-L-arabinofuranosidase 3 / β-xylosidase (Abf3) 3.2.1.37
3.2.1.55
Penicillium purpurogenum MYA-38 ACP50519.1
ACP50519.2
C3W4Y2  
 exo-β-1,3-galactanase (Pc1,3Gal43A) (1,3Gal43A) 3.2.1.145 Phanerochaete chrysosporium BAD98241.1 Q50KB2 cryst
 arabinofuranosidase (peptide fragment) 3.2.1.55 Sarocladium zeae NRRL 6415      
unclassified
Protein Name EC#OrganismGenBankUniprotPDB/3D
 exo-α-1,5-L-arabinanase (Arn3) 3.2.1.- unidentified      

Footnotes

Experimental characterization exclusively covers enzyme activities at present. If you are aware of any missing experimental characterization that should be mentioned here, we encourage you to send your comment and support of the experimental evidence, including an electronic copy or appropriate link to the support material (i.e., article(s), thesis, database, etc), to cazy@afmb.univ-mrs.fr.





Last update: 2012-01-31 © Copyright 1998-2012
AFMB - CNRS - Universités Aix-Marseille I & II