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Open data
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Basic information
Entry | Database: PDB / ID: 8gz3 | ||||||||||||
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Title | Structure of human phagocyte NADPH oxidase in the resting state | ||||||||||||
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![]() | OXIDOREDUCTASE / NOX2 / p22 / CYBA / CYBB / TP1170 / NOX | ||||||||||||
Function / homology | ![]() negative regulation of glomerular filtration by angiotensin / smooth muscle hypertrophy / superoxide-generating NADPH oxidase activity / Oxidoreductases; Acting on NADH or NADPH; With oxygen as acceptor / hypoxia-inducible factor-1alpha signaling pathway / cellular response to L-glutamine / positive regulation of toll-like receptor 2 signaling pathway / positive regulation of defense response to bacterium / mucus secretion / perinuclear endoplasmic reticulum ...negative regulation of glomerular filtration by angiotensin / smooth muscle hypertrophy / superoxide-generating NADPH oxidase activity / Oxidoreductases; Acting on NADH or NADPH; With oxygen as acceptor / hypoxia-inducible factor-1alpha signaling pathway / cellular response to L-glutamine / positive regulation of toll-like receptor 2 signaling pathway / positive regulation of defense response to bacterium / mucus secretion / perinuclear endoplasmic reticulum / superoxide-generating NAD(P)H oxidase activity / Cross-presentation of particulate exogenous antigens (phagosomes) / NADPH oxidase complex / cytochrome complex assembly / respiratory burst / WNT5:FZD7-mediated leishmania damping / response to angiotensin / ROS and RNS production in phagocytes / response to aldosterone / regulation of release of sequestered calcium ion into cytosol / hydrogen peroxide biosynthetic process / superoxide anion generation / positive regulation of mucus secretion / cellular response to cadmium ion / superoxide metabolic process / Detoxification of Reactive Oxygen Species / positive regulation of reactive oxygen species biosynthetic process / cellular response to ethanol / tertiary granule membrane / cellular response to angiotensin / RHO GTPases Activate NADPH Oxidases / monoatomic ion channel complex / RAC2 GTPase cycle / RAC3 GTPase cycle / NADPH binding / specific granule membrane / stress fiber / positive regulation of phagocytosis / positive regulation of endothelial cell proliferation / RAC1 GTPase cycle / response to nutrient / FAD binding / response to interleukin-1 / secretory granule / positive regulation of superoxide anion generation / response to activity / response to nutrient levels / positive regulation of smooth muscle cell proliferation / cellular response to glucose stimulus / establishment of localization in cell / cellular response to gamma radiation / defense response / SH3 domain binding / positive regulation of interleukin-6 production / VEGFA-VEGFR2 Pathway / cellular response to mechanical stimulus / phagocytic vesicle membrane / positive regulation of angiogenesis / positive regulation of tumor necrosis factor production / nuclear envelope / cellular response to tumor necrosis factor / flavin adenine dinucleotide binding / positive regulation of cell growth / monoatomic ion transmembrane transport / response to hypoxia / electron transfer activity / endosome / apical plasma membrane / inflammatory response / response to xenobiotic stimulus / protein heterodimerization activity / innate immune response / focal adhesion / neuronal cell body / heme binding / dendrite / endoplasmic reticulum membrane / Neutrophil degranulation / metal ion binding / membrane / plasma membrane Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||||||||
![]() | Chen, L. / Liu, R. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of human phagocyte NADPH oxidase in the resting state. Authors: Rui Liu / Kangcheng Song / Jing-Xiang Wu / Xiao-Peng Geng / Liming Zheng / Xiaoyin Gao / Hailin Peng / Lei Chen / ![]() Abstract: Phagocyte oxidase plays an essential role in the first line of host defense against pathogens. It oxidizes intracellular NADPH to reduce extracellular oxygen to produce superoxide anions that ...Phagocyte oxidase plays an essential role in the first line of host defense against pathogens. It oxidizes intracellular NADPH to reduce extracellular oxygen to produce superoxide anions that participate in pathogen killing. The resting phagocyte oxidase is a heterodimeric complex formed by two transmembrane proteins NOX2 and p22. Despite the physiological importance of this complex, its structure remains elusive. Here, we reported the cryo-EM structure of the functional human NOX2-p22 complex in nanodisc in the resting state. NOX2 shows a canonical 6-TM architecture of NOX and p22 has four transmembrane helices. M3, M4, and M5 of NOX2, and M1 and M4 helices of p22 are involved in the heterodimer formation. Dehydrogenase (DH) domain of NOX2 in the resting state is not optimally docked onto the transmembrane domain, leading to inefficient electron transfer and NADPH binding. Structural analysis suggests that the cytosolic factors might activate the NOX2-p22 complex by stabilizing the DH in a productive docked conformation. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 236.7 KB | Display | ![]() |
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PDB format | ![]() | 176.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.3 MB | Display | |
Data in XML | ![]() | 33.9 KB | Display | |
Data in CIF | ![]() | 53.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 34389MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Cytochrome b-245 ... , 2 types, 2 molecules AB
#1: Protein | Mass: 21005.398 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 65412.727 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Antibody , 3 types, 3 molecules LHN
#3: Antibody | Mass: 17975.100 Da / Num. of mol.: 1 / Source method: isolated from a natural source Details: Fab cleaved from monoclonal antibody purchased from commercial supplier. The expression system is not known. Source: (natural) ![]() ![]() |
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#4: Antibody | Mass: 18315.516 Da / Num. of mol.: 1 / Source method: isolated from a natural source Details: Fab cleaved from monoclonal antibody purchased from commercial supplier. The expression system is not known. Source: (natural) ![]() ![]() |
#5: Antibody | Mass: 46217.344 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-Sugars , 2 types, 3 molecules 
#6: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
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#9: Sugar |
-Non-polymers , 4 types, 5 molecules 






#7: Chemical | ChemComp-FAD / | ||||
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#8: Chemical | #10: Chemical | ChemComp-LBN / | #11: Water | ChemComp-HOH / | |
-Details
Has ligand of interest | N |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: NADPH oxidase2 / Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES |
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Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1500 nm |
Image recording | Electron dose: 37.6 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
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Processing
CTF correction | Type: NONE |
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3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 84035 / Symmetry type: POINT |
Refinement | Highest resolution: 3.3 Å |