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Open data
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Basic information
| Entry | Database: PDB / ID: 1irm | ||||||
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| Title | Crystal structure of apo heme oxygenase-1 | ||||||
 Components | apo heme oxygenase-1 | ||||||
 Keywords | OXIDOREDUCTASE / disordered alpha helix / apo form of hemoprotein | ||||||
| Function / homology |  Function and homology informationarachidonate omega-hydroxylase activity / Regulation of HMOX1 expression and activity / Iron uptake and transport / Heme degradation / negative regulation of muscle cell apoptotic process / response to 3-methylcholanthrene / Cytoprotection by HMOX1 / negative regulation of mast cell degranulation / response to arachidonate / heme metabolic process ...arachidonate omega-hydroxylase activity / Regulation of HMOX1 expression and activity / Iron uptake and transport / Heme degradation / negative regulation of muscle cell apoptotic process / response to 3-methylcholanthrene / Cytoprotection by HMOX1 / negative regulation of mast cell degranulation / response to arachidonate / heme metabolic process / heme oxygenase (biliverdin-producing) / heme oxidation / heme oxygenase (decyclizing) activity / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / wound healing involved in inflammatory response / cellular response to cisplatin / positive regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis / cellular response to arsenic-containing substance / negative regulation of epithelial cell apoptotic process / cellular response to nutrient / heme catabolic process / negative regulation of viral life cycle / negative regulation of mast cell cytokine production / positive regulation of epithelial cell apoptotic process / phospholipase D activity / epithelial cell apoptotic process / positive regulation of cell migration involved in sprouting angiogenesis / erythrocyte homeostasis / negative regulation of ferroptosis / small GTPase-mediated signal transduction / negative regulation of macroautophagy / cellular response to cadmium ion / negative regulation of vascular associated smooth muscle cell proliferation / positive regulation of macroautophagy / host-mediated suppression of viral transcription / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / phospholipid metabolic process / liver regeneration / positive regulation of smooth muscle cell proliferation / response to nicotine / macroautophagy / negative regulation of smooth muscle cell proliferation / response to hydrogen peroxide / caveola / multicellular organismal-level iron ion homeostasis / regulation of blood pressure / response to estrogen / positive regulation of angiogenesis / intrinsic apoptotic signaling pathway in response to DNA damage / cellular response to heat / response to oxidative stress / angiogenesis / negative regulation of neuron apoptotic process / intracellular iron ion homeostasis / response to hypoxia / intracellular signal transduction / response to xenobiotic stimulus / negative regulation of cell population proliferation / heme binding / regulation of transcription by RNA polymerase II / endoplasmic reticulum membrane / perinuclear region of cytoplasm / structural molecule activity / enzyme binding / endoplasmic reticulum / protein homodimerization activity / metal ion binding / identical protein binding / nucleus / cytosol Similarity search - Function  | ||||||
| Biological species | ![]()  | ||||||
| Method |  X-RAY DIFFRACTION /  SYNCHROTRON /  MOLECULAR REPLACEMENT / Resolution: 2.55 Å  | ||||||
 Authors | Sugishima, M. / Sakamoto, H. / Kakuta, Y. / Omata, Y. / Hayashi, S. / Noguchi, M. / Fukuyama, K. | ||||||
 Citation |  Journal: Biochemistry / Year: 2002Title: Crystal structure of rat apo-heme oxygenase-1 (HO-1): mechanism of heme binding in HO-1 inferred from structural comparison of the apo and heme complex forms Authors: Sugishima, M. / Sakamoto, H. / Kakuta, Y. / Omata, Y. / Hayashi, S. / Noguchi, M. / Fukuyama, K. #1:   Journal: FEBS Lett. / Year: 2000Title: Crystal Structure of rat heme oxygenase-1 in complex with heme Authors: Sugishima, M. / Omata, Y. / Kakuta, Y. / Sakamoto, H. / Noguchi, M. / Fukuyama, K. #2:   Journal: Acta Crystallogr.,Sect.D / Year: 1998Title: Crystallization and preliminary X-ray diffraction studies on the water soluble form of rat heme oxygenase-1 in complex with heme Authors: Omata, Y. / Asada, S. / Sakamoto, H. / Fukuyama, K. / Noguchi, M.  | ||||||
| History | 
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Structure visualization
| Structure viewer | Molecule:  Molmil Jmol/JSmol | 
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Downloads & links
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Download
| PDBx/mmCIF format |  1irm.cif.gz | 130.9 KB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb1irm.ent.gz | 102.4 KB | Display |  PDB format | 
| PDBx/mmJSON format |  1irm.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  1irm_validation.pdf.gz | 452.8 KB | Display |  wwPDB validaton report | 
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| Full document |  1irm_full_validation.pdf.gz | 505.8 KB | Display | |
| Data in XML |  1irm_validation.xml.gz | 29.9 KB | Display | |
| Data in CIF |  1irm_validation.cif.gz | 40.5 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/ir/1irm ftp://data.pdbj.org/pub/pdb/validation_reports/ir/1irm | HTTPS FTP  | 
-Related structure data
| Related structure data | ![]() 1dveS S: Starting model for refinement  | 
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| Similar structure data | 
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Links
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Assembly
| Deposited unit | ![]() 
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| 2 | ![]() 
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| 3 | ![]() 
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| Unit cell | 
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Components
| #1: Protein | Mass: 30612.496 Da / Num. of mol.: 3 / Fragment: RESIDUES 1-267 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P06762, heme oxygenase (biliverdin-producing) #2: Water |  ChemComp-HOH /  |  | 
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-Experimental details
-Experiment
| Experiment | Method:  X-RAY DIFFRACTION / Number of used crystals: 1  | 
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Sample preparation
| Crystal | Density Matthews: 2.18 Å3/Da / Density % sol: 43.45 % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Crystal grow | Temperature: 277 K / Method: vapor diffusion, hanging drop / pH: 8  Details: ammonium sulfate, PEG400, HEPES, stronthium chloride, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Crystal grow | *PLUS pH: 7.4  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Components of the solutions | *PLUS 
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-Data collection
| Diffraction | Mean temperature: 100 K | 
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| Diffraction source | Source:  SYNCHROTRON / Site:  SPring-8   / Beamline: BL41XU / Wavelength: 0.709 Å | 
| Detector | Type: MARRESEARCH / Detector: CCD / Date: Apr 24, 2000 | 
| Radiation | Monochromator: Si(111) double monochrometor / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | 
| Radiation wavelength | Wavelength: 0.709 Å / Relative weight: 1 | 
| Reflection | Resolution: 2.55→46.625 Å / Num. all: 25283 / Num. obs: 25283 / % possible obs: 99.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.7 % / Rsym value: 0.06 / Net I/σ(I): 9.2 | 
| Reflection shell | Resolution: 2.55→2.69 Å / Redundancy: 3.5 % / Mean I/σ(I) obs: 2.9 / Num. unique all: 3692 / Rsym value: 0.25 / % possible all: 99.9 | 
| Reflection | *PLUS Lowest resolution: 30 Å / Num. measured all: 93875  / Rmerge(I) obs: 0.059  | 
| Reflection shell | *PLUS % possible obs: 99.9 % / Rmerge(I) obs: 0.25  | 
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Processing
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| Refinement | Method to determine structure:  MOLECULAR REPLACEMENTStarting model: PDB ENTRY 1DVE Resolution: 2.55→46.625 Å / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber Details: To solve the structure of merohedral twinning crystal, LSQ refinement target used as ( Fo - k( sqrt 0.55Fc^2 + 0.45Fc'^2] ) )^2 
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| Displacement parameters | 
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| Refine analyze | Luzzati coordinate error obs: 0.33 Å / Luzzati d res low obs: 5 Å / Luzzati sigma a obs: 0.47 Å | ||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 2.55→46.625 Å
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| Refine LS restraints | 
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| LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 10 
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| Refinement | *PLUS % reflection Rfree: 5 % / Rfactor obs: 0.204  / Rfactor Rfree: 0.307  / Rfactor Rwork: 0.202  | ||||||||||||||||||||||||||||||||||||||||
| Solvent computation | *PLUS  | ||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | *PLUS  | ||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints | *PLUS 
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| LS refinement shell | *PLUS Rfactor Rfree: 0.3853  / Rfactor Rwork: 0.322  | 
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