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- PDB-1twn: Crystal structures of ferrous and ferrous-NO forms of verdoheme i... -
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Basic information
Entry | Database: PDB / ID: 1twn | ||||||
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Title | Crystal structures of ferrous and ferrous-NO forms of verdoheme in a complex with human heme oxygenase-1: catalytic implications for heme cleavage | ||||||
![]() | Heme oxygenase 1 | ||||||
![]() | OXIDOREDUCTASE / heme oxygenase-1 / heme degredation | ||||||
Function / homology | ![]() Regulation of HMOX1 expression and activity / heme oxygenase (biliverdin-producing) / low-density lipoprotein particle clearance / cellular response to cisplatin / heme oxidation / smooth muscle hyperplasia / heme oxygenase (decyclizing) activity / negative regulation of leukocyte migration / wound healing involved in inflammatory response / positive regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis ...Regulation of HMOX1 expression and activity / heme oxygenase (biliverdin-producing) / low-density lipoprotein particle clearance / cellular response to cisplatin / heme oxidation / smooth muscle hyperplasia / heme oxygenase (decyclizing) activity / negative regulation of leukocyte migration / wound healing involved in inflammatory response / positive regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis / heme catabolic process / cellular response to arsenic-containing substance / positive regulation of epithelial cell apoptotic process / erythrocyte homeostasis / endothelial cell proliferation / epithelial cell apoptotic process / Heme degradation / NFE2L2 regulating anti-oxidant/detoxification enzymes / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / positive regulation of cell migration involved in sprouting angiogenesis / negative regulation of macroautophagy / The NLRP3 inflammasome / positive regulation of macroautophagy / regulation of angiogenesis / Purinergic signaling in leishmaniasis infection / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / positive regulation of chemokine production / cellular response to cadmium ion / macroautophagy / negative regulation of smooth muscle cell proliferation / Iron uptake and transport / positive regulation of smooth muscle cell proliferation / response to nicotine / Heme signaling / response to hydrogen peroxide / Cytoprotection by HMOX1 / multicellular organismal-level iron ion homeostasis / positive regulation of angiogenesis / cellular response to heat / cellular response to hypoxia / angiogenesis / Interleukin-4 and Interleukin-13 signaling / positive regulation of canonical NF-kappaB signal transduction / intracellular iron ion homeostasis / mitochondrial outer membrane / response to oxidative stress / intracellular signal transduction / heme binding / endoplasmic reticulum membrane / regulation of transcription by RNA polymerase II / structural molecule activity / perinuclear region of cytoplasm / enzyme binding / endoplasmic reticulum / protein homodimerization activity / extracellular space / nucleoplasm / identical protein binding / membrane / nucleus / metal ion binding / cytosol Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Lad, L. / Ortiz de Montellano, P.R. / Poulos, T.L. | ||||||
![]() | ![]() Title: Crystal structures of ferrous and ferrous-NO forms of verdoheme in a complex with human heme oxygenase-1: catalytic implications for heme cleavage. Authors: Lad, L. / Ortiz de Montellano, P.R. / Poulos, T.L. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 105.8 KB | Display | ![]() |
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PDB format | ![]() | 81.2 KB | Display | ![]() |
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-Validation report
Summary document | ![]() | 526.3 KB | Display | ![]() |
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Full document | ![]() | 534.4 KB | Display | |
Data in XML | ![]() | 11.4 KB | Display | |
Data in CIF | ![]() | 17.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1twrC ![]() 1qq8 C: citing same article ( 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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1 |
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Unit cell |
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Components
#1: Protein | Mass: 26898.615 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() References: UniProt: P09601, heme oxygenase (biliverdin-producing) #2: Chemical | #3: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 1.9 Å3/Da / Density % sol: 23 % |
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Crystal grow | Temperature: 301 K / Method: small tubes / pH: 8 Details: NH4SO4, Hepes, NaCl, pH 8.0, SMALL TUBES, temperature 301K |
-Data collection
Diffraction | Mean temperature: 119 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Mar 17, 2003 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Relative weight: 1 |
Reflection | Resolution: 2.2→50 Å / Num. all: 25444 / Num. obs: 24350 / % possible obs: 99.1 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 2 / Redundancy: 7.4 % / Rmerge(I) obs: 0.105 / Rsym value: 0.049 / Net I/σ(I): 22.2 |
Reflection shell | Resolution: 2.2→2.27 Å / Redundancy: 4.3 % / Rmerge(I) obs: 0.099 / Mean I/σ(I) obs: 2.2 / Num. unique all: 2224 / Rsym value: 0.041 / % possible all: 96.3 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: pdb entry 1qq8 ![]() 1qq8 Resolution: 2.2→50 Å / Isotropic thermal model: isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 2.2 / Stereochemistry target values: Engh & Huber
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Refinement step | Cycle: LAST / Resolution: 2.2→50 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.2→2.28 Å
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