1s13
Human Heme Oxygenase Oxidatition of alpha- and gamma-meso-PhenylhemesHuman Heme Oxygenase Oxidatition of alpha- and gamma-meso-Phenylhemes
Template:ABSTRACT PUBMED 15297453
DiseaseDisease
[HMOX1_HUMAN] Defects in HMOX1 are the cause of heme oxygenase 1 deficiency (HMOX1D) [MIM:614034]. A disease characterized by impaired stress hematopoiesis, resulting in marked erythrocyte fragmentation and intravascular hemolysis, coagulation abnormalities, endothelial damage, and iron deposition in renal and hepatic tissues. Clinical features include persistent hemolytic anemia, asplenia, nephritis, generalized erythematous rash, growth retardation and hepatomegaly.[1]
FunctionFunction
[HMOX1_HUMAN] Heme oxygenase cleaves the heme ring at the alpha methene bridge to form biliverdin. Biliverdin is subsequently converted to bilirubin by biliverdin reductase. Under physiological conditions, the activity of heme oxygenase is highest in the spleen, where senescent erythrocytes are sequestrated and destroyed.
About this StructureAbout this Structure
1s13 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.
See AlsoSee Also
ReferenceReference
- ↑ Wang J, Niemevz F, Lad L, Huang L, Alvarez DE, Buldain G, Poulos TL, de Montellano PR. Human heme oxygenase oxidation of 5- and 15-phenylhemes. J Biol Chem. 2004 Oct 8;279(41):42593-604. Epub 2004 Aug 5. PMID:15297453 doi:10.1074/jbc.M406346200
- ↑ Yachie A, Niida Y, Wada T, Igarashi N, Kaneda H, Toma T, Ohta K, Kasahara Y, Koizumi S. Oxidative stress causes enhanced endothelial cell injury in human heme oxygenase-1 deficiency. J Clin Invest. 1999 Jan;103(1):129-35. PMID:9884342 doi:10.1172/JCI4165