Activities in Family	levansucrase (EC 2.4.1.10); β-fructofuranosidase (EC 3.2.1.26); inulosucrase (EC 2.4.1.9).
Mechanism	Retaining a
Clan	GH-J
3D Structure Status	5-fold β-propeller
Catalytic Nucleophile/Base	Asp
Catalytic Proton Donor	Glu
External resources	CAZypedia;
Statistics	GenBank accession (2206); Uniprot accession (60); PDB accession (37); 3D entries (10); cryst (0)

Archaea
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)	Subf
inulosucrase (InuHj; HacjB3_04715)	2.4.1.9	Halalkalicoccus jeotgali B3	ADJ14334.1	D8J9C2	7BJ4[A,B,C,D,E,F,G,H,I,J] α-D-Glcp-(1-1)-<non_carb> α-D-Glcp-(1-2)-β-D-Fruf 2.72 7BJ5[A,B,C,D,E,F,G,H,I,J] 2.75 7BJC[A,B,C,D,E,F,G,H,I,J] α-D-Glcp-(1-2)-β-D-Fruf 3.11	2
Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)	Subf
β-fructofuranosidase (Bff;BffA;ArFFase)	3.2.1.26	Arthrobacter sp. K-1	BAB72022.1	Q8VW87	3VSR[A] 2.00 3VSS[A] β-D-Fruf 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	2
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	A0PFL2 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 6PWQ[A,B] 2.60 6VHQ[A,B] β-D-6-deoxy-Fruf-(2-6)-β-D-Fruf β-D-Fruf-(2-6)-β-D-Fruf-(2-6)-β-D-Fruf-(2-6)-β-D-Fruf-(2-6)-β-D-Fruf-(2-6)-β-D-Fruf 2.05	1
β-fructosyltransferase (BiBftA; Bind_2021)	2.4.1.10	Beijerinckia indica subsp. indica ATCC 9039	ACB95643.1	B2IF78	6M0D[A] 2.20 6M0E[A] β-D-Fruf β-D-Frup 1.35	2
levansucrase (Brs-LS; EH206_19850)	2.4.1.10	Brenneria nigrifluens ATCC 13028	QCR06203.1	G7LSK3	7EHR[A] 1.33 7EHS[A] 1.60 7EHT[A] 1.45 7FDZ[A] α-D-Glcp-(1-2)-β-D-Fruf 1.35	2
EAM_3468 (LsC)	2.4.1.10	Erwinia amylovora ATCC 49946	CBJ48143.1	A0A0M3KKU6 D4IGH9	4D47[A,B,C,D,E,F,G,H] α-D-Glcp β-D-Fruf 2.77	2
levansucrase (ETA_34670; LsC)	2.4.1.10	Erwinia tasmaniensis Et1/99	CAO98513.1	B2VCC3	6FRW[A] 1.52 6RV5[A] β-D-Fruf-(2-6)-β-D-Fruf 1.58 7OSO[A] 1.40	2
levansucrase (LdsA)	2.4.1.10	Gluconacetobacter diazotrophicus SRT4	AAB36606.1	Q43998 Q5I5I3	1W18[A,B] 2.5	2
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] α-D-Glcp-(1-2)-β-D-Fruf-(1-2)-β-D-Fruf 1.85	1
levansucrase (SacB;BMD_1536)	2.4.1.10	Priestia 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	1
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