Sucrose synthase

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 Ribbon Diagram of Sucrose Synthase-1 3S27.
Ribbon diagram of Sucrose Synthase-1 3S27 Structure, isolated from Arabidopsis thaliana.[1]
sucrose synthase
EC number
CAS number 9030-05-1
IntEnz IntEnz view
ExPASy NiceZyme view
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Sucrose synthase
Symbol Sucrose_synth
Pfam PF00862
InterPro IPR000368

In enzymology, a sucrose synthase (EC is an enzyme that catalyzes the chemical reaction

NDP-glucose + D-fructose NDP + sucrose

Thus, the two substrates of this enzyme are NDP-glucose and D-fructose, whereas its two products are NDP and sucrose.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is NDP-glucose:D-fructose 2-alpha-D-glucosyltransferase. Other names in common use include UDPglucose-fructose glucosyltransferase, sucrose synthetase, sucrose-UDP glucosyltransferase, sucrose-uridine diphosphate glucosyltransferase, and uridine diphosphoglucose-fructose glucosyltransferase. This enzyme participates in starch and sucrose metabolism.


  1. ^ Zheng, Yi; Spencer, A.; Zhang, Y.; Garavito, R.M. (24 August 2011). "The Structure of Sucrose Synthase-1 from Arabidopsis thaliana and its Functional Implications". Journal of Biological Chemistry. 286: 36108–36118. doi:10.1074/jbc.M111.275974. PMC 3195635Freely accessible. PMID 21865170. ; rendered with PyMOL


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