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Literature summary for 1.10.3.3 extracted from

  • Caputo, E.; Ceglie, V.; Lippolis, M.; La Rocca, N.; De Tullio, M.
    Identification of a NaCl-induced ascorbate oxidase activity in Chaetomorpha linum suggests a novel mechanism of adaptation to increased salinity (2010), Environ. Exp. Bot., 69, 63-67.
No PubMed abstract available
Search for more literature for 1.10.3.3

Localization

Localization Comment Organism GeneOntology No. Textmining
cell wall
-
 Chaetomorpha linum 5618
-
chloroplast
-
 Chaetomorpha linum 9507
-
cytosol
-
 Chaetomorpha linum 5829
-

Metals/Ions

Metals/Ions Comment Organism Structure
Cu2+ a multicopper oxidase Chaetomorpha linum
NaCl induces the ascorbate oxidase activity Chaetomorpha linum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
4 L-ascorbate + O2 Chaetomorpha linum
-
 4 monodehydroascorbate + 2 H2O
-
 ?

Organism

Organism UniProt Comment Textmining
Chaetomorpha linum
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
additional information algal filaments Chaetomorpha linum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4 L-ascorbate + O2
-
 Chaetomorpha linum 4 monodehydroascorbate + 2 H2O
-
 ?

Synonyms

Synonyms Comment Organism
AAO
-
 Chaetomorpha linum
ASC oxidase
-
 Chaetomorpha linum
ascorbate oxidase
-
 Chaetomorpha linum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.8
-
 electrophoretic assay at Chaetomorpha linum
7.8
-
 spectrophotometric assay at Chaetomorpha linum

Expression

Organism Comment Expression
Chaetomorpha linum NaCl-induced ascorbate oxidase activity up

General Information

General Information Comment Organism
evolution AAO belongs to the large family of multicopper oxidases. AAO labelling in the cytosol, walls and chloroplasts of Chaetomorpha linum cells, whereas in angiosperms this enzyme is almost exclusively confined to the extracellular matrix, possible function of AAO in adaptation and functional evolution of its cellular location, overview Chaetomorpha linum