3tgm

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Template:STRUCTURE 3tgm

Contents

X-Ray Crystal Structure of Human Heme Oxygenase-1 in Complex with 1-(1H-imidazol-1-yl)-4,4-diphenyl-2 butanone

Template:ABSTRACT PUBMED 22276118

Disease

[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]

Function

[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 Structure

3tgm is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

See Also

Reference

  • Rahman MN, Vlahakis JZ, Vukomanovic D, Lee W, Szarek WA, Nakatsu K, Jia Z. A novel, "double-clamp" binding mode for human heme oxygenase-1 inhibition. PLoS One. 2012;7(1):e29514. Epub 2012 Jan 19. PMID:22276118 doi:10.1371/journal.pone.0029514
  1. ↑ 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

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