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Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
for maintenance.
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
BioCyc websites down
12/28 - 12/31
for maintenance.
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MetaCyc Compound Class: a porphyrin

Superclasses: a macrocycle

Summary:
A porphyrin is a heterocyclic macrocycle derived from porphine, a molecule that consists of four pyrrole rings joined together by four methine (=CH-) groups to form a larger macrocycle ring. Substituted porphines are called porphyrins. Many porphyrins occur in nature, and fulfil important biochemical roles. Porphyrins can bind metals to form complexes. The metal ion, usually with a charge of 2+ or 3+, resides in the central cavity formed by the loss of two protons. Many metals are found with different derivatives, including Fe, Mg, Ni, Co and Zn. The name porphyrin comes from a Greek word for purple, since most porphyrins are red to purple in color. More reduced porphyrins, such as corphins, are yellowish.

Chemical Formula: C20H14N4

Child Classes: a phycobilin (2) , heme (18)

Instances:
coproporphyrin III ,
coproporphyrinogen I ,
Fe-coproporphyrin III ,
ferriprotoporphyrin IX ,
magnesium-protoporphyrin IX 13-monomethyl ester ,
Mg-protoporphyrin ,
protoporphyrin IX ,
protoporphyrinogen IX ,
red chlorophyll catabolite ,
siroamide ,
siroheme amide ,
uroporphyrin I ,
uroporphyrin III ,
uroporphyrinogen-I ,
uroporphyrinogen-III

Monoisotopic Molecular Weight: 310.1218464702 Daltons

SMILES: C1(=C2(C=C5(C=CC(C=C4(C=CC(=CC3(C=CC(=CC(=C1)N2)N=3))N4))=N5)))

Standard Gibbs Free Energy of Change Formation (ΔfG in kcal/mol): 295.5657 Inferred by computational analysis [Latendresse13]


References

Latendresse13: Latendresse M. (2013). "Computing Gibbs Free Energy of Compounds and Reactions in MetaCyc."


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 18.5 on Sun Dec 21, 2014, BIOCYC13A.