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Literature summary for 1.4.3.2 extracted from

  • Vallon, O.; Bulte, L.; Kuras, R.; Olive, J.; Wollman, F.A.
    Extensive accumulation of an extracellular L-amino acid oxidase during gametogenesis of Chlamydomonas reinhardtii (1993), Eur. J. Biochem., 215, 351-360.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
CaCl2 2 mM, 50% activation Chlamydomonas reinhardtii

Inhibitors

Inhibitors Comment Organism Structure
EDTA 10 mM, 90% inhibition Chlamydomonas reinhardtii
hydroxylamine 5 mM, 75% inhibition Chlamydomonas reinhardtii
KCN 10 mM, complete inhibition Chlamydomonas reinhardtii
NaF 10 mM, 85% inhibition Chlamydomonas reinhardtii
Thiosemicarbazide 5 mM, 40% inhibition Chlamydomonas reinhardtii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.2
-
S-ribosyl-L-homocysteine
-
Chlamydomonas reinhardtii

Localization

Localization Comment Organism GeneOntology No. Textmining
periplasm
-
Chlamydomonas reinhardtii
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
66000
-
Malpha, ? * 66000, Mbeta, ? * 66000 + ? * 135000, latter polypeptide not required for amino acid oxidase activity Chlamydomonas reinhardtii
135000
-
Malpha, ? * 66000, Mbeta, ? * 66000 + ? * 135000, latter polypeptide not required for amino acid oxidase activity Chlamydomonas reinhardtii
900000 1000000 form Malpha, gel filtration, sedimentation equilibrium Chlamydomonas reinhardtii
1200000 1300000 form Mbeta, gel filtration, sedimentation equilibrium Chlamydomonas reinhardtii

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-amino acid + H2O + O2 Chlamydomonas reinhardtii operates as scavanger of ammonium from extracellular amino acids 2-oxo acid + NH3 + H2O2
-
?

Organism

Organism UniProt Comment Textmining
Chlamydomonas reinhardtii
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein both polypeptide chains are glycosylated Chlamydomonas reinhardtii

Purification (Commentary)

Purification (Comment) Organism
-
Chlamydomonas reinhardtii

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.4
-
glycine Chlamydomonas reinhardtii
4.4
-
L-threonine Chlamydomonas reinhardtii
4.9
-
L-aspartate Chlamydomonas reinhardtii
6
-
L-glutamate Chlamydomonas reinhardtii
12.5
-
L-histidine Chlamydomonas reinhardtii
14.4
-
L-valine Chlamydomonas reinhardtii
14.8
-
L-tyrosine Chlamydomonas reinhardtii
15.5
-
L-tryptophan Chlamydomonas reinhardtii
16.6
-
L-arginine Chlamydomonas reinhardtii
17
-
L-isoleucine Chlamydomonas reinhardtii
17.4
-
S-adenosy-L-cysteine Chlamydomonas reinhardtii
17.8
-
L-alanine Chlamydomonas reinhardtii
18.4
-
L-asparagine Chlamydomonas reinhardtii
18.8
-
L-leucine Chlamydomonas reinhardtii
18.9
-
L-lysine Chlamydomonas reinhardtii
20.4
-
L-cystine Chlamydomonas reinhardtii
21.4
-
L-ornithine Chlamydomonas reinhardtii
24.2
-
L-serine Chlamydomonas reinhardtii
24.3
-
L-methionine Chlamydomonas reinhardtii
25.2
-
S-adenosyl-L-homocysteine Chlamydomonas reinhardtii
26.5
-
L-phenylalanine Chlamydomonas reinhardtii
26.5
-
L-ethionine Chlamydomonas reinhardtii
30.5
-
L-methionine sulfoximine Chlamydomonas reinhardtii
39.5
-
L-glutamine Chlamydomonas reinhardtii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-amino acid + H2O + O2 all amino acids except cysteine Chlamydomonas reinhardtii 2-oxo acid + NH3 + H2O2
-
?
L-amino acid + H2O + O2 operates as scavanger of ammonium from extracellular amino acids Chlamydomonas reinhardtii 2-oxo acid + NH3 + H2O2
-
?
S-ribosyl-L-homocysteine + H2O + O2
-
Chlamydomonas reinhardtii 4-thioribosyl-2-oxobutyrate + NH3 + H2O2
-
r

Subunits

Subunits Comment Organism
oligomer Malpha, ? * 66000, Mbeta, ? * 66000 + ? * 135000, latter polypeptide not required for amino acid oxidase activity Chlamydomonas reinhardtii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9
-
broad optimum Chlamydomonas reinhardtii

Cofactor

Cofactor Comment Organism Structure
FAD non-covalently bound Chlamydomonas reinhardtii