Ligand heme c

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Basic Ligand Information

Molecular Structure
Picture of heme c (click for magnification)
Molecular Formula
BRENDA Name
InChIKey
C34H38FeN4O4S2
heme c
XSWPXBWSKQRBRZ-IDTMDVKXSA-L
Synonyms:
cytochrome c-554, cytochrome c554

Roles as Enzyme Ligand

In Vivo Substrate in Enzyme-catalyzed Reactions (1 result)

EC NUMBER
PROVEN IN VIVO REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
hydroxylamine + NH3 + cytochrome c-554 = NO2 + H2O + reduced cytochrome c-554
show the reaction diagram
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Substrate in Enzyme-catalyzed Reactions (2 results)

EC NUMBER
REACTION
REACTION DIAGRAM
LITERATURE
ENZYME 3D STRUCTURE
heme c + NADPH + H+ + O2 = biliverdin c + Fe2+ + CO + NAD+ + H2O
show the reaction diagram
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hydroxylamine + NH3 + cytochrome c-554 = NO2 + H2O + reduced cytochrome c-554
show the reaction diagram
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Enzyme Cofactor/Cosubstrate (294 results)

EC NUMBER
COMMENTARY
LITERATURE
ENZYME 3D STRUCTURE
part of cytochrome cL
-
both isoforms ADH IIB and ADH IIG
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1 mol per mol of enzyme
-
8 molecules per teramer
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two mol of heme per mole of AMDH, 60 kDa subunit carries heme c. Typical absorption stectrum shows maxima at 554, 522, 420, and 320 nm in the reduced state and one peak at 410 nm, a shoulder at 350 nm, and a braod hill at 530 nm in the oxidized form
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a soluble 26.1-kDa tetraheme protein that is quite abundant in the periplasm of Nitrosomas europaea and is the acceptor of the electrons from HAO in vivo
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enzyme contains 1.5 heme molecules of the c-type
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3D Structure of Enzyme-Ligand-Complex (PDB) (333 results)

EC NUMBER
ENZYME 3D STRUCTURE

Enzyme Kinetic Parameters

KM Value (1 result)

EC NUMBER
KM VALUE [MM]
KM VALUE MAXIMUM [MM]
COMMENTARY
LITERATURE
0.029
-
spleen heme oxygenase

References & Links

Links to other databases for heme c

ChEBI
PubChem
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PubChem