Glycoside Hydrolase Family 43

Activities in Familyα-1,2-L-arabinofuranosidase (EC 3.2.1.-);
α-1,3-L-arabinofuranosidase (EC 3.2.1.-);
α-1,4-L-arabinofuranosidase (EC 3.2.1.-);
Exo-1,4-β-xylosidase (EC 3.2.1.-);
Exo-α-1,5-L-arabinofuranosidase (EC 3.2.1.-);
Exo-β-1,3-galactanase (EC 3.2.1.145);
β-D-galactofuranosidase (EC 3.2.1.146);
Xylan β-1,4-xylosidase (EC 3.2.1.37);
α-L-arabinofuranosidase (EC 3.2.1.55);
β-1,3-xylosidase (EC 3.2.1.72);
Endo-β-1,4-xylanase (EC 3.2.1.8);
[inverting] endo-α-1,5-L-arabinanase (EC 3.2.1.99);
Mechanism Inverting e
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 (38987); Uniprot accession (207); PDB accession (112); 3D entries (51); cryst (1)
unclassified
Protein Name EC#OrganismGenBank UniprotPDB/3D Subf
 ORF   feces metagenome SJX74176.1     17
 α-L-arabinofuranosidase (CapGH43_12) 3.2.1.55 metagenome UMW87593.1   7JVH[A,B,C,D,E,F] 12
 β-xylosidase (GH43(A3);BN138_18) 3.2.1.37 termite gut metagenome CCO20830.1 S0DFD1   11
 arabinanase 43A (G12-10;GH43b(G12);BN138_172) (Abn43A) 3.2.1.99 termite gut metagenome CCO20984.1 S0DDY0   4
 exo-α-L-1,5-arabinanase 43B (G12-19;GH43a(G12);BN138_181) (Abn43B) 3.2.1.- termite gut metagenome CCO20993.1 S0DDV5   4
 α-L-arabinofuranosidase 51B-43C (G12-20;GH51-GH43(G12);BN138_182) (Abf51B-Abf43C)   termite gut metagenome CCO20994.1 S0DDZ8   29
 BN138_229   termite gut metagenome CCO21041.1
CCO21105.1
CCO21150.1
CCO21203.1
CCO21213.1
CCO21268.1
CCO21286.1
CCO21316.1
    1
 BN138_520   termite gut metagenome CCO21332.1     29
 BN138_521   termite gut metagenome CCO21333.1     4
 β-xylosidase / α-L-arabinofuranosidase (GH43(F3);BN138_114) 3.2.1.37
3.2.1.55
termite gut metagenome CCO20926.1 S0DG39   35
 BT-10   uncultured microorganism ADR64672.1     19
 BT-10   uncultured microorganism ADR64672.1     24
 ORF   uncultured organism ADD61475.1     12
 ORF (fragment)   uncultured organism ADD61491.1     10
 ORF   uncultured organism ADD61495.1     29
 ORF   uncultured organism ADD61498.1     10
 multimodular xylanase (fragment) 3.2.1.8 uncultured organism ADD61461.1 D9ZDQ7   16
 β-xylosidase (RS223-BX) 3.2.1.37 uncultured organism AFP23142.1 I7EUE2 4MLG[A,B,C,D,E,F,G,H,I,J,K,L] 1
 β-xylosidase (c24_6) 3.2.1.37 uncultured organism AGU10366.1     1
 ORF   uncultured organism AGU10579.1     12
 ORF   uncultured organism AGU10644.1     10
 ORF   uncultured organism AGU10721.1     11
 ORF   uncultured organism AGU11112.1     1
 ORF   uncultured organism AGU11239.1     11
 ORF   uncultured organism AGU11281.1     34
 ORF   uncultured organism AGU11323.1     11
 ORF   uncultured organism AGU11393.1     12
 ORF (fragment)   uncultured prokaryote CRY97816.1     18
 V1226_22335   unidentified WWR19161.1     32
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