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Literature summary for 1.1.1.424 extracted from

  • Sutter, J.; Johnsen, U.; Schönheit, P.
    Characterization of a pentonolactonase involved in D-xylose and L-arabinose catabolism in the haloarchaeon Haloferax volcanii (2017), FEMS Microbiol. Lett., 364, fnx140 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
-
Haloferax volcanii

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ 50 mM used in assay conditions Haloferax volcanii

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
D-xylose + NADP+ Haloferax volcanii
-
D-xylono-gamma-lactone + NADPH + H+
-
?
D-xylose + NADP+ Haloferax volcanii H26
-
D-xylono-gamma-lactone + NADPH + H+
-
?

Organism

Organism UniProt Comment Textmining
Haloferax volcanii
-
-
-
Haloferax volcanii D4GP29
-
-
Haloferax volcanii DSM 3757 D4GP29
-
-
Haloferax volcanii H26
-
-
-

Purification (Commentary)

Purification (Comment) Organism
Ni-NTA column chromatography, and Superdex 200 gel filtration Haloferax volcanii

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
6
-
pH 8.2, 42°C Haloferax volcanii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-xylose + NADP+
-
Haloferax volcanii D-xylono-1,4-lactone + NADPH + H+
-
?
D-xylose + NADP+
-
Haloferax volcanii DSM 3757 D-xylono-1,4-lactone + NADPH + H+
-
?
D-xylose + NADP+
-
Haloferax volcanii D-xylono-gamma-lactone + NADPH + H+
-
?
D-xylose + NADP+
-
Haloferax volcanii H26 D-xylono-gamma-lactone + NADPH + H+
-
?

Synonyms

Synonyms Comment Organism
D-xylose dehydrogenase
-
Haloferax volcanii
XDH
-
Haloferax volcanii

Cofactor

Cofactor Comment Organism Structure
NADP+
-
Haloferax volcanii

General Information

General Information Comment Organism
physiological function Haloferax volcanii degrades the pentoses D-xylose and L-arabinose via an oxidative pathway to 2-oxoglutarate as an intermediate. The initial dehydrogenases of the pathway, D-xylose dehydrogenase (XDH) and L-arabinose dehydrogenase (L-AraDH) catalyze the NADP+ dependent D-xylose and L-arabinose oxidation Haloferax volcanii