Xylose isomerase is involved in xylose metabolism. It catalyzes the conversion of D-xylose into D-xylulose. It forms a homotetramer and binds 2 magnesium ions per subunit. Localized in the cytoplasm; High confidence in function and specificity.

Fructokinase catalyzes the transfert of phosphate group from ATP to convert the fructose to fructose-6-phosphate, which is an entry point into glycolysis (Embden-Meyerhof pathway) via conversion into glucose-6-phosphate; Belongs to the carbohydrate kinase pfkB superfamily, bacterial fructokinase family; Localized in the cytoplasm; High confidence in function and specificity.

Mannonate dehydratase; Catalyzes the dehydration of D-mannonate.

Ribose ABC importer, permease component; Part of the binding-protein-dependent ABC transporter system for D-ribose. Probably responsible for the translocation of the substrate across the membrane; Contains seven transmembrane segments; Belongs to the binding-protein-dependent transport system permease family; Localized in the cytoplasmic membrane; High confidence in function and specificity.

GDP-mannose 6-dehydrogenase catalyzes the oxidation of guanosine diphospho-D-mannose (GDP-D-mannose) to GDP-D-mannuronic acid. In Pseudomonas aeruginosa, this activated sugar is the precursor for alginate polymerization. AlgD belongs to the UDP-glucose/GDP- mannose dehydrogenase family, a small group of enzymes which possesses the ability to catalyze the NAD-dependent 2-fold oxidation of an alcohol to an acid without the release of an aldehyde intermediate. Localized in the cytoplasm; High confidence in function and specificity.

Mannonate dehydratase; Catalyzes the dehydration of D-mannonate.

Ribose ABC importer, periplasmic component; RbsB is the D-ribose-binding protein involved in the high-affinity D-ribose membrane transport system; Belongs to the bacterial solute-binding protein 2 family; Seems to have a uncleavable signal sequence; Localized in the cytoplasmic membrane and exposed in the periplasmic space; High confidence in function and specificity.

Ribose ABC importer, ATPase component; Part of the ABC transporter complex RbsABCD involved in D-ribose import. RbsA is Responsible for energy coupling to the transport system; The complex is composed of two ATP-binding proteins, two transmembrane proteins (rbsC and rbsD) and a solute-binding protein (rbsB); Contains 2 ABC transporter domains; Belongs to the ABC transporter family, ribose importer subfamily; Localized in the cytoplasmic membrane as a peripheral membrane protein; High confidence in function and specificity.

Altronate hydrolase or Altronic acid hydratase converts the altronic acid to 2-keto-2-deoxygluconate; it is catalytically inactive in the absence of Fe2+, Mn2+, and beta-mercaptoethanol. Synergistic activation of enzyme is seen in the presence of both iron and manganese ions, suggesting that the enzyme may have two ion binding sites. Mn2+ appears to be part of the enzyme active centre; Contains an N-terminal SAF domain; Localized in the cytoplasm; High confidence in function and specificity.