Protein
4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase
Organism
Escherichia coli (strain K12)
Function
Catalyzes the isomerization of 5-dehydro-4-deoxy-D-glucuronate to 3-deoxy-D-glycero-2,5-hexodiulosonate (By similarity). Plays a role in the catabolism of hexuronates under osmotic stress conditions, likely substituting for the regular hexuronate degrading enzyme UxaC whose expression is repressed in these conditions (PubMed:23437267).
Similarity
Belongs to the KduI family.
Sequence
MDVRQSIHSAHAKTLDTQGLRNEFLVEKVFVADEYTMVYSHIDRIIVGGIMPITKTVSVGGEVGKQLGVSYFLERRELGVINIGGAGTITVDGQCYEIGHRDALYVGKGAKEVVFASIDTGTPAKFYYNCAPAHTTYPTKKVTPDEVSPVTLGDNLTSNRRTINKYFVPDVLETCQLSMGLTELAPGNLWNTMPCHTHERRMEVYFYFNMDDDACVFHMMGQPQETRHIVMHNEQAVISPSWSIHSGVGTKAYTFIWGMVGENQVFDDMDHVAVKDLR