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Yorodumi- EMDB-34389: Structure of human phagocyte NADPH oxidase in the resting state -
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Open data
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Basic information
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| Title | Structure of human phagocyte NADPH oxidase in the resting state | ||||||||||||
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Sample |
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Keywords | NOX2 / p22 / CYBA / CYBB / TP1170 / NOX / OXIDOREDUCTASE | ||||||||||||
| Function / homology | Function and homology informationnegative 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 / perinuclear endoplasmic reticulum / NAD(P)H oxidase H2O2-forming activity ...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 / perinuclear endoplasmic reticulum / NAD(P)H oxidase H2O2-forming activity / Cross-presentation of particulate exogenous antigens (phagosomes) / superoxide-generating NAD(P)H oxidase activity / NADPH oxidase complex / cytochrome complex assembly / cellular response to phorbol 13-acetate 12-myristate / superoxide anion generation / WNT5:FZD7-mediated leishmania damping / respiratory burst / response to angiotensin / ROS and RNS production in phagocytes / hydrogen peroxide biosynthetic process / cellular response to ethanol / superoxide metabolic process / Detoxification of Reactive Oxygen Species / positive regulation of reactive oxygen species biosynthetic process / cellular response to cadmium ion / response to aldosterone / cellular response to angiotensin / tertiary granule membrane / RAC3 GTPase cycle / RAC2 GTPase cycle / RHO GTPases Activate NADPH Oxidases / NADPH binding / specific granule membrane / positive regulation of superoxide anion generation / positive regulation of endothelial cell proliferation / stress fiber / RAC1 GTPase cycle / FAD binding / positive regulation of smooth muscle cell proliferation / response to nutrient / positive regulation of phagocytosis / secretory granule / response to interleukin-1 / response to activity / cellular response to tumor necrosis factor / cellular response to glucose stimulus / defense response / SH3 domain binding / cellular response to mechanical stimulus / cellular response to gamma radiation / response to nutrient levels / positive regulation of interleukin-6 production / VEGFA-VEGFR2 Pathway / phagocytic vesicle membrane / positive regulation of angiogenesis / flavin adenine dinucleotide binding / positive regulation of tumor necrosis factor production / nuclear envelope / positive regulation of cell growth / response to hypoxia / electron transfer activity / innate immune response / endosome / inflammatory response / apical plasma membrane / response to xenobiotic stimulus / protein heterodimerization activity / focal adhesion / neuronal cell body / heme binding / Neutrophil degranulation / dendrite / endoplasmic reticulum membrane / membrane / plasma membrane Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) / ![]() ![]() | ||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||||||||
Authors | Chen L / Liu R / Song K | ||||||||||||
| Funding support | China, 3 items
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Citation | Journal: Elife / Year: 2022Title: 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. | ||||||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_34389.map.gz | 78.8 MB | EMDB map data format | |
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| Header (meta data) | emd-34389-v30.xml emd-34389.xml | 22.6 KB 22.6 KB | Display Display | EMDB header |
| Images | emd_34389.png | 85.6 KB | ||
| Filedesc metadata | emd-34389.cif.gz | 7.2 KB | ||
| Archive directory | https://data.pdbj.org/pub/emdb/structures/EMD-34389 ftp://data.pdbj.org/pub/emdb/structures/EMD-34389 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8gz3MC C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_34389.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.05557 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : NADPH oxidase2
+Supramolecule #1: NADPH oxidase2
+Macromolecule #1: Cytochrome b-245 light chain
+Macromolecule #2: Cytochrome b-245 heavy chain
+Macromolecule #3: 7D5 Fab light chain
+Macromolecule #4: 7D5 Fab heavy chain
+Macromolecule #5: Green Fluorescent Protein, Anti-Fab (kappa) nanobody[TP1170] chimera
+Macromolecule #7: FLAVIN-ADENINE DINUCLEOTIDE
+Macromolecule #8: PROTOPORPHYRIN IX CONTAINING FE
+Macromolecule #9: 2-acetamido-2-deoxy-beta-D-glucopyranose
+Macromolecule #10: 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine
+Macromolecule #11: water
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Average electron dose: 37.6 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.5 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
China, 3 items
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Processing
FIELD EMISSION GUN
