Protoporphyrin

Protoporphyrin IX

Protoporphyrin IX

Molecular formula C₃₄H₃₄N₄O₄

Molar mass 562.658 g/mol

CAS number 553-12-8

PubChem 4971

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox references

In the metabolism of porphyrin, protoporphyrin IX is created by the enzyme protoporphyrinogen oxidase, and the enzyme ferrochelatase converts it into heme.

Heme synthesis - note that some reactions occur in the cytoplasm and some in the mitochondrion (yellow)

v • d • e Types of tetrapyrroles

Bilanes	Bilirubin · Biliverdin · Urobilinogen · Urobilin

Chlorophylls	Protochlorophyllide · Chlorophyllide

Corrinoids	Cyanocobalamin

Phycobilins	Phycoerythrobilin · Phycocyanobilin · Phycourobilin · Phycoviolobilin

Porphyrins	Uroporphyrinogen (I, III) · Coproporphyrinogen (I, III) · Protoporphyrinogen IX · Protoporphyrin (IX) · Zinc protoporphyrin

Major families of biochemicals Saccharides · Carbohydrates · Glycosides · · Amino acids · Peptides · Proteins · Glycoproteins · · Lipids · Terpenes · Steroids · Carotenoids Alkaloids · Nucleobases · Nucleic acids · · Enzyme cofactors · Flavonoids · Polyketides · Tetrapyrroles

v • d • e Heme metabolic intermediates

Heme synthesis	D-Aminolevulinic acid · Porphobilinogen · Hydroxymethylbilane · Uroporphyrinogen III · Coproporphyrinogen III · Protoporphyrinogen IX · Protoporphyrin IX

Breakdown of heme	spleen: Heme → Biliverdin → Bilirubin blood: Bilirubin+Albumin liver: Bilirubin diglucuronide

Intestine, excretion in feces	Stercobilinogen · Stercobilin · Urobilinogen

Kidney, excretion in urine	Urobilin

see also disorders, enzymes

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Protoporphyrin IX

Molecular formula	C₃₄H₃₄N₄O₄
Molar mass	562.658 g/mol
CAS number	553-12-8
PubChem	4971
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references