Any feedback?
Please rate this page
(ligand.php)
(0/150)

BRENDA support

Ligand purine

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.

Basic Ligand Information

Molecular Structure
Picture of purine (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C5H4N4
purine
KDCGOANMDULRCW-UHFFFAOYSA-N
Synonyms:
a purine base


Show all pahtways known for Show all BRENDA pathways known for purine

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (6 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
purine + H2O + O2 = ?
show the reaction diagram
-
purine + O2 + H2O = ? + H2O2
show the reaction diagram
-

In Vivo Product in Enzyme-catalyzed Reactions (4 results)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
alkylated DNA + H2O = 7-methyladenine + 7-methylguanine + 3-methyladenine + 3-methylguanine + purine + 6-chloropurine + xanthine + DNA
show the reaction diagram
-
N-ribosylpurine + H2O = purine + D-ribose
show the reaction diagram
-

Substrate in Enzyme-catalyzed Reactions (14 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
purine + O2 + H2O = ? + H2O2
show the reaction diagram
-
thymidine + purine = thymine + 9-(2-deoxy-beta-D-ribofuranosyl)-purine
show the reaction diagram
-

Product in Enzyme-catalyzed Reactions (11 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
purine riboside + H2O = purine + D-ribose
show the reaction diagram
-
alkylated DNA + H2O = 7-methyladenine + 7-methylguanine + 3-methyladenine + 3-methylguanine + purine + 6-chloropurine + xanthine + DNA
show the reaction diagram
-
purine riboside + H2O = purine + D-ribose
show the reaction diagram
-

Activator in Enzyme-catalyzed Reactions (1 result)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
increases enzyme production
-

Inhibitor in Enzyme-catalyzed Reactions (5 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
some inhibition
-
competitive inhibition
-

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (5 results)

EC NUMBER
TURNOVER NUMBER [1/S]
TURNOVER NUMBER MAXIMUM [1/S]
COMMENTARY
LITERATURE
0.7
-
electron acceptor: oxygen

KM Value (7 results)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.0182
-
cosubstrate: NAD+
0.208
-
pH 8.5, 43°C

Ki Value (1 result)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
1.1
-
pH 7.5, 25°C

References & Links

Links to other databases for purine

ChEBI
PubChem
ChEBI
PubChem