Glycoside Hydrolase Family 43

Activities in Familyβ-xylosidase (EC 3.2.1.37); α-L-arabinofuranosidase (EC 3.2.1.55); xylanase (EC 3.2.1.8); 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.-); [inverting] exo-α-1,5-L-arabinanase (EC 3.2.1.-); [inverting] endo-α-1,5-L-arabinanase (EC 3.2.1.99); exo-β-1,3-galactanase (EC 3.2.1.145); β-D-galactofuranosidase (EC 3.2.1.146)
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. 82:1686-1692 (PMID: 26729713).
External resourcesCAZypedia;
Commercial Enzyme Provider(s)MEGAZYME; NZYTech; PROZOMIX;
Statistics GenBank accession (22224); Uniprot accession (1416); PDB accession (108); 3D entries (47); cryst (1)
All (21529) Archaea (32) Bacteria (20526) Eukaryota (938) Viruses (5) unclassified (28) Structure (47 - 1 cryst) Characterized (183)
| 1 | 2 |
Bacteria
Protein Name EC#OrganismGenBank UniprotPDB/3D Subf
 β-D-galactofuranosidase (Pjdr2_0435) 3.2.1.146 Paenibacillus sp. JDR-2 ACS99115.1 C6CSG3   34
 β-xylosidase /α-L-arabinofuranosidase (XylC) 3.2.1.37
3.2.1.55
Paenibacillus woosongensis ADV16404.1     35
 β-xylosidase (XynB;Orf0389;00389-GPBOY;PBR_0394) 3.2.1.37 Prevotella bryantii B14 CAA89208.1
CAD21010.1
P48791
Q7AUW6
  1
 arabinoxylan arabinofuranohydrolase (ORF2351) (Ara43A) 3.2.1.55 Prevotella bryantii B14 ADI70680.1 D7SFH6   12
 endo-arabinanase (Abn;Tth Abn;Theth_1128) 3.2.1.99 Pseudothermotoga thermarum DSM 5069 AEH51204.1     4
 α-L-arabinofuranosidase (RiAbf43A;ROSINTL182_08193) (Abf43A) 3.2.1.55 Roseburia intestinalis L1-82 EEU99940.1     12
 double substituted arabinoxylan α-1,3-L-specific arabinofuranohydrolase (RjAxh43B) (Axh43B) 3.2.1.55 Ruminiclostridium josui JCM 17888 BAW98157.1     10
 arabinanase 43A (RjAbn43A) (Abn43A) 3.2.1.55 Ruminiclostridium josui JCM 17888 BBA94052.1     22
 arabinanase 43A (RjAbn43A) (Abn43A) 3.2.1.55 Ruminiclostridium josui JCM 17888 BBA94052.1     26
 arabinanase 43A (RjAbn43A) (Abn43A) 3.2.1.55 Ruminiclostridium josui JCM 17888 BBA94052.1     34
 arabinanase (GH43D;RUM_09280) (Ara43D) 3.2.1.99 Ruminococcus champanellensis 18P13 = JCM 17042 CBL17100.1 D4LBV5   4
 arabinanase (GH43A;RUM_09320) (Ara43A) 3.2.1.99 Ruminococcus champanellensis 18P13 = JCM 17042 CBL17103.1 D4LBV8   37
 α-L-arabinofuranosidase (GH43B;RUM_14020) (Abf43B) 3.2.1.55 Ruminococcus champanellensis 18P13 = JCM 17042 CBL17514.1 D4LD19   16
 bifunctional xylanase α-L-arabinofuranosidase (GH10B;GH43E;RUM_15940) (Xyn10B-Abf43E) 3.2.1.55
3.2.1.8
Ruminococcus champanellensis 18P13 = JCM 17042 CBL17682.1 D4LDI7   16
 β-xylosidase / α-L-arabinofuranosidase (Xsa;Sxa;SXA) 3.2.1.37
3.2.1.55
Selenomonas ruminantium GA192 AAB97967.1 O52575 3C2U[A,B,C,D] 11
 β-xylosidase (Xyl455) 3.2.1.37 Sphingobacterium sp. HP455 AGL51118.1     1
 β-D-galactofuranosidase (weak activity) (Snas_0206) 3.2.1.146 Stackebrandtia nassauensis DSM 44728 ADD39925.1 D3Q1S7   30
 α-L-arabinofuranosidase (weak activity) (STAUR_1358) 3.2.1.55 Stigmatella aurantiaca DW4/3-1 ADO69162.1 Q09B80   23
 exo-α-1,5-L-arabinofuranosidase (SaAraf43A;SAV1043) (Araf43A) 3.2.1.- Streptomyces avermitilis MA-4680 = NBRC 14893 BAC68753.1
NP_822218.1
  3AKF[A]
3AKG[A]
3AKH[A]
3AKI[A]
26
 exo-β-1,3-galactanase (Sa1,3Gal43A;SAV2109) (1,3Gal43A) 3.2.1.145 Streptomyces avermitilis MA-4680 = NBRC 14893 BAC69820.1
NP_823285.1
    24
 exo-α-1,5-L-arabinofuranosidase II (AFase II) 3.2.1.- Streptomyces chartreusis GS901 BAA90772.1
B59296
P82594   26
 α-L-arabinofuranosidase (SCAB_44321) 3.2.1.55 Streptomyces scabiei 87.22 CBG71495.1 C9Z7A1   20
 exo-β-1,3-galactanase (SGalase2) 3.2.1.145 Streptomyces sp. 19(2012) AFH55135.1     24
 exo-β-1,3-galactanase (SGalase1) (partial) 3.2.1.145 Streptomyces sp. 19(2012) AFH55134.1     24
 β-xylosidase (TfBXyl43) (Xyl43A) 3.2.1.37 Thermobifida fusca TM51 AEF28829.1     11
 β-xylosidase (Tfu_1616) (Xyl43A) 3.2.1.37 Thermobifida fusca YX AAZ55651.1 Q47PG8   11
 β-xylosidase / α-L-arabinofuranosidase 3.2.1.37
3.2.1.55
Thermoclostridium stercorarium BAA02527.1 P48790   35
 β-xylosidase (Xyl43B) (Xyl43B) 3.2.1.37 Thermoclostridium stercorarium F-9 BAC87941.1 Q76EC8   10
 α-arabinofuranosidase (ArfA) (fragment) (Arf43A) 3.2.1.55 Thermoclostridium stercorarium NCIMB 11745 CAD48310.1 Q8GJ41   10
 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
 β-xylosidase / α-L-arabinofuranosidase (CoXyl43) 3.2.1.37
3.2.1.55
uncultured bacterium BAS02080.1   5GLK[A,B]
5GLL[A,B]
5GLM[A,B]
5GLN[A,B]
5GLO[A,B]
5GLP[A,B]
5GLQ[A,B]
5GLR[A,B]
1
 α-L-arabinofuranosidase / β-xylosidase (deAX) 3.2.1.37
3.2.1.55
uncultured bacterium ACF39706.1 B8QP77   12
 exo-α-1,5-L-arabinanase (Arn3;ARN3) 3.2.1.- uncultured bacterium ADB43999.1 D2XML8 4KCB[A,B] 5
 endo-α-1,5-L-arabinanase (Arn2) 3.2.1.99 uncultured bacterium ADB43998.1 D2XML7   4
 α-L-arabinofuranosidase / β-xylosidase (deAFc) 3.2.1.37
3.2.1.55
uncultured bacterium ABB92159.1 A0S5D8   12
 β-xylobiosidase / α-L-arabinofuranosidase (r_09-02) 3.2.1.37
3.2.1.55
uncultured bacterium r_09 AFN57709.1     35
 endo-β-1,4-xylanase (UX66;Orf66) 3.2.1.8 uncultured bacterium URE4 ACM91046.1 C0K016   29
 endo-β-1,4-xylanase (UX66;Orf66) 3.2.1.8 uncultured bacterium URE4 ACM91046.1 C0K016   29
 β-1,4-xylosidase / α-L-arabinofuranoside (RuXyn1) 3.2.1.37
3.2.1.55
uncultured rumen bacterium ADO20354.1 E3TBJ3   1
 β-xylosidase / α-L-arabinofuranosidase (RUM630-BX) 3.2.1.37 uncultured rumen bacterium AFE48532.1     1
 endo-α-1,5-L-arabinanase (Arn2;ARN2) (partial) 3.2.1.99 uncultured rumen bacterium     4KCA[A]
4KCA[B]
4
 β-1,3-xylosidase (XloA) 3.2.1.- Vibrio sp. XY-214 BAF98235.1 A9ZND1   11
 α-L-arabinofuranosidase (Araf43;WAraf43) 3.2.1.- Weissella sp. 142 APU52332.1   5M8E[A,B] 26
 β-xylosidase (Xyn43;WXyn43) 3.2.1.37 Weissella sp. 92 ALB06585.1     11
Eukaryota
Protein Name EC#OrganismGenBank UniprotPDB/3D Subf
 endo-α-1,5-L-arabinanase (Ara1) 3.2.1.99 Aspergillus aculeatus CBS 101.43 AAG27441.1 Q9HFS9   6
 endo-α-1,5-L-arabinosidase (AN8007.2) 3.2.1.99 Aspergillus nidulans FGSC A4 EAA58810.1
ABF50890.1
C8V5S3
Q5AUM3
  6
 endo-α-1,5-L-arabinosidase (AN6352.2) 3.2.1.99 Aspergillus nidulans FGSC A4 EAA58736.1
ABF50876.1
C8V0Y7
Q5AZC8
  6
 An09g01190 (AbnA) 3.2.1.99 Aspergillus niger CBS 513.88 CAK49041.1 A2QT85   6
 arabinan endo-α-1,5-L-arabinosidase A (AbnA) 3.2.1.99 Aspergillus niger CBS120.49 / N400 AAA32682.1
AAE37583.1
P42256   6
 endo-α-1,5-L-arabinanase (AbnA) 3.2.1.99 Aspergillus niveus PR-2 AEV23010.1     6
 β-xylosidase (XylB;AO090005000698) 3.2.1.37 Aspergillus oryzae RIB40 BAE55732.1 Q2URT3   1
 β-xylosidase (AtL) 3.2.1.37 Aspergillus terreus Li-20 AFD63137.1     1
 β-xylosidase (Xyp1) 3.2.1.37 Bipolaris zeicola AAC67554.1 O93912   1
 α-L-arabinofuranosidase (Ara;CsAra) 3.2.1.55 Chaetomium sp. CQ31 AFU88757.1     26
 endo-α-1,5-L-arabinanase (Abn1) 3.2.1.99 Chrysosporium lucknowense C1 ADZ98858.1     6
 α-L-arabinofuranosidase (Abn4) 3.2.1.- Chrysosporium lucknowense C1 ADZ98860.1     26
 arabinoxylan hydrolase / double substituted xylan α-1,3-L-arabinofuranosidase (Abn7;AXHd) 3.2.1.55 Chrysosporium lucknowense C1 ADZ98862.1     36
 exo-β-1,3-galactanase (Fo/1,3Gal) 3.2.1.145 Fusarium oxysporum 12S BAG80558.1 B6F260   24
 double substituted xylan α-1,3-L-arabinofuranosidase (α-araF;AXHd3;;Abf II) 3.2.1.55 Humicola insolens DSM 18000 CAL81199.1   3ZXJ[A,B]
3ZXK[A,B]
3ZXL[A,B]
36
 α-L-arabinofuranosidase (Abf43;HiAbf43) 3.2.1.55 Humicola insolens Y1 AIM56896.1     26
 β-xylosidase / α-L-arabinofuranosidase (Xyl43A) 3.2.1.37 Humicola insolens Y1 AHC72382.1     1
 β-xylosidase / α-L-arabinofuranosidase (Xyl43B) 3.2.1.37
3.2.1.55
Humicola insolens Y1 AHC72383.1     11
 exo-β-1,3-galactanase (Il3Gal;Il1,3GAL) 3.2.1.145 Irpex lacteus NBRC 5367 BAH29957.1 B9ZZS1   24
 β-1,4-xylosidase (PtXyl43) (Xyl43) 3.2.1.37 Paecilomyces sp. thermophila / Paecilomyces thermophila J18 ADM33794.1     1
 arabinan endo-α-1,5-L-arabinosidase (AbnC;Abnc) 3.2.1.99 Penicillium chrysogenum 31B BAD15018.1 Q75WE6   6
 endo-α-1,5-L-arabinanase (AbnS1) 3.2.1.99 Penicillium chrysogenum 31B BAD89094.2
BAD89094.1
BAJ49868.1
Q5H7M8 cryst 6
 single-substituted arabinan-specific α-L-arabinofuranosidase (PcAbf43A;Pc06g00650) (Abf43A) 3.2.1.55 Penicillium chrysogenum 31B BAM73651.1     26
 α-L-arabinofuranosidase (PcAbf43B) (Abf43B) 3.2.1.55 Penicillium chrysogenum 31B BAQ35744.1     21
 β-xylosidase S2 3.2.1.37 Penicillium herquei IFO 4674 BAC75546.1 Q870E8   1
 exo-β-1,3-galactanase (Pc1,3Gal43A) (1,3Gal43A) 3.2.1.145 Phanerochaete chrysosporium BAD98241.1 Q50KB2 7BYS[A,B]
7BYT[A]
7BYV[A]
7BYX[A,B,C,D]
24
 endo-α-1,5-L-arabinanase (Ara;PcARA) 3.2.1.99 Phanerochaete chrysosporium BKM-F-1767 AFN42888.1     5
 β-xylosidase (Xyl;PcXyl) 3.2.1.37 Phanerochaete chrysosporium BKM-F-1767 AFW16059.1     14
 α-L-arabinofuranosidase B (AbfB;MoAbfB;MG06843;MGG_06843( 3.2.1.55 Pyricularia oryzae 70-15 XP_370346.1 G4MMH2   26
 endo-1,5-α-L-arabinanase (RmArase) 3.2.1.99 Rhizomucor miehei CAU432 AHF50152.1     5
 β-xylosidase RrXyl43A 3.2.1.37 Rhizophlyctis rosea RrXyl43A AWL24827.1     1
 α-L-arabinofuranosidase 3 / β-xylosidase (Abf3) 3.2.1.37
3.2.1.55
Talaromyces purpureogenus MYA-38 ACP50519.2
ACP50519.1
C3W4Y2   29
 β-1,4-xylosidase (Xyl43;TlXyl43;NOKS4_002883-RA) 3.2.1.37 Thermomyces lanuginosus CAU44 ADW66247.1     1
unclassified
Protein Name EC#OrganismGenBank UniprotPDB/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
 α-L-arabinofuranosidase 51B-43C (G12-20;GH51-GH43(G12);BN138_182) (Abf51B-Abf43C) 3.2.1.55 termite gut metagenome CCO20994.1     29
 β-xylosidase / α-L-arabinofuranosidase (GH43(F3);BN138_114) 3.2.1.37
3.2.1.55
termite gut metagenome CCO20926.1     35
 multimodular xylanase (fragment) 3.2.1.- uncultured organism ADD61461.1 D9ZDQ7   16
 β-xylosidase (RS223-BX) 3.2.1.37 uncultured organism AFP23142.1   4MLG[A,B,C,D,E,F,G,H,I,J,K,L] 1
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