Glycoside Hydrolase Family 68

Activities in Familylevansucrase (EC 2.4.1.10); β-fructofuranosidase (EC 3.2.1.26); inulosucrase (EC 2.4.1.9).
Mechanism Retaining
ClanGH-J
Catalytic Nucleophile/BaseAsp
Catalytic Proton DonorGlu
External resourcesCAZypedia;
Statistics GenBank accession (1196); Uniprot accession (121); PDB accession (24); 3D entries (7); cryst (0)
All (1136) Archaea (19) Bacteria (1107) unclassified (10) Structure (7) Characterized (48)
Bacteria
Protein Name EC#OrganismGenBankUniprot
PDB/3D Carbohydrate Ligands Resolution (Å)
 β-fructofuranosidase (Bff;BffA;ArFFase) 3.2.1.26 Arthrobacter sp. K-1 BAB72022.1 Q8VW87
3VSR[A] 2.00
3VSS[A] 1.97
3WPU[A,B] 1.60
3WPV[A,B,C] 1.81
3WPY[A,B,C] 2.00
3WPZ[A,B,C] 2.27
 levansucrase (SacB;BMD_1536) 2.4.1.10 Bacillus megaterium DSM 319 ADF38395.1 D5DC07
3OM2[A] 1.90
3OM4[A,B,C,D] 1.75
3OM5[A,B,C,D] 1.95
3OM6[A,B,C,D] 1.96
3OM7[A,B,C,D] 1.86
 levansucrase (SacB;BSU34450) 2.4.1.10 Bacillus subtilis subsp. subtilis str. 168 CAA26513.1
AAA22724.1
AAA22725.1
ACB45216.1
ACB46534.1
ACF93714.1
AIY94761.1
AQR83479.1
AQR87694.1
BAF93887.1
CAB08015.1
CAB15450.1
CAI39222.1
CAI39224.1
CAO78323.1
NP_391325.1
P05655
1OYG[A] 1.50
1PT2[A] α-D-Glcp-(1-2)-β-D-Fruf
2.10
2VDT[A] 3.2
3BYJ[A] 2.10
3BYK[A] 2.10
3BYL[A] 2.10
3BYN[A] α-D-Galp-(1-6)-α-D-Glcp-(1-2)-β-D-Fruf
2.10
 EAM_3468 (LsC) 2.4.1.10 Erwinia amylovora ATCC 49946 CBJ48143.1 D4IGH9
4D47[A,B,C,D,E,F,G,H] 2.77
 levansucrase (ETA_34670; LsC) 2.4.1.10 Erwinia tasmaniensis Et1/99 CAO98513.1  
6FRW[A] 1.52
 levansucrase (LdsA) 2.4.1.10 Gluconacetobacter diazotrophicus SRT4 AAB36606.1 Q43998
Q5I5I3
1W18[A,B] 2.5
 inulosucrase (InuJ;LJ0913) 2.4.1.9 Lactobacillus johnsonii NCC 533 AAS08734.1
NP_964768.1
Q74K42
2YFR[A] 1.75
2YFS[A] α-D-Glcp-(1-2)-β-D-Fruf
2.60
2YFT[A] 1.85
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