Ligand DL-Ornithine

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Basic Ligand Information

Molecular Structure
Picture of DL-Ornithine (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C5H12N2O2
DL-Ornithine
AHLPHDHHMVZTML-UHFFFAOYSA-N
Synonyms:
2,5-Diaminopentanoate, 2,5-diaminopentanoic acid, D-/L-Ornithine, Polyornithine

Roles as Enzyme Ligand

Substrate in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
DL-ornithine + 2-oxoglutarate = L-glutamate + 4-methyl-2-oxopentanoate
show the reaction diagram
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DL-ornithine = (2R,4S)-2,4-diaminopentanoate
show the reaction diagram
-

Product in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
dichloroacetyl-DL-ornithine + H2O = dichloroacetate + DL-ornithine
show the reaction diagram
-
-
arginine + H2O = 2,5-diaminopentanoate + urea
show the reaction diagram
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-

Activator in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
stimulation, 112% of non-stimulated activity
-
stimulation of poly(A) synthesis, phosphorolysis of poly(A) is inhibited
-

Inhibitor in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
strong
-
competitive inhibition, 10 mM
-

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (3 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE

KM Value (3 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE

References & Links

Links to other databases for DL-Ornithine

ChEBI
PubChem
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PubChem