UreD is a critical accessory protein in the maturation pathway of urease, an enzyme essential for urea hydrolysis in cyanobacteria like Synechocystis sp. PCC 6803 . As part of the UreFD complex, UreD facilitates the transfer of nickel ions (Ni²⁺) to the urease apoprotein during enzyme activation. Its structural and functional roles are central to nitrogen metabolism, particularly in environments where urea serves as a nitrogen source.
Mutagenesis Studies: Mutations in UreD’s tunnel residues (e.g., residues 38–86) impair nickel transfer without affecting UreD-urease binding . This underscores UreD’s dual role in structural integrity and catalytic assistance.
While direct applications of recombinant UreD are not extensively reported, its role in urease maturation suggests potential utility in:
KEGG: syn:sll1639
STRING: 1148.SYNGTS_0492