Protein Domain : Sucrose phosphatase-like domain IPR006380

Type	Domain
Description	This entry represents a conserved region of the sucrose phosphate phosphohydrolase (SPP) from plants [ , ]. SPP is a member of the Class IIB subfamily of the haloacid dehalogenase (HAD) superfamily of aspartate-nucleophile hydrolases. SPP catalyses the final step in the biosynthesis of sucrose, a critically important molecule for plants. Sucrose phosphate synthase (SPS), the prior step in the biosynthesis of sucrose contains a domain which exhibits considerable similarity to SPP albeit without conservation of the catalytic residues. The catalytic machinery of the synthase resides in another domain. It seems likely that the phosphatase-like domain is involved in substrate binding, possibly binding both substrates in a "product-like"orientation prior to ligation by the synthase catalytic domain. This domain is also found in bacterial proteins.
Short Name	SPP-like_dom