Activities in Sub Family	[retaining] levansucrase / sucrose:fructan 6-fructosyltransferase (6-SFT) (EC 2.4.1.10); [retaining] inulosucrase / sucrose:fructan 1-fructosyltransferase (EC 2.4.1.9); β-fructofuranosidase / invertase (EC 3.2.1.26);
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 (1273); Uniprot accession (36); PDB accession (22); 3D entries (7); 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
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 8I2Q[A] 2.15 8I2R[A] β-D-Fruf β-D-Frup 1.36	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
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