Ligand porphyrin

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Basic Ligand Information

Molecular Structure
Picture of porphyrin (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C20H14N4
porphyrin
RKCAIXNGYQCCAL-CEVVSZFKSA-N
Synonyms:
tetrapyrrole

Roles as Enzyme Ligand

Substrate in Enzyme-catalyzed Reactions (3 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
S-adenosyl-L-methionine + tetrapyrrole = ?
show the reaction diagram
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Inhibitor in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
high porphyrin concentrations noticeably increase the extent of zinc inhibition
-
at high ChlH concentrations, substrate inhibition is very noticeable
-

Enzyme Kinetic Parameters

kcat Value (Turnover Number) (4 results)

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

KM Value (4 results)

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

Ki Value (1 result)

EC NUMBER
KI VALUE [MM]
KI VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.005
-
pH 7.7, 45C. At high ChlH concentrations, substrate inhibition is very noticeable

References & Links

Links to other databases for porphyrin

ChEBI
PubChem
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PubChem