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- PDB-8x2l: Structure of human phagocyte NADPH oxidase in the resting state i... -

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Basic information

Entry
Database: PDB / ID: 8x2l
TitleStructure of human phagocyte NADPH oxidase in the resting state in the presence of 2 mM NADPH
Components
  • (Cytochrome b-245 ...) x 2
  • 7D5 Fab heavy chain
  • 7D5 Fab light chain
KeywordsOXIDOREDUCTASE / NOX2 / p22 / CYBA / CYBB / TP1170 / NOX
Function / homology
Function and homology information


smooth muscle hypertrophy / cellular response to L-glutamine / positive regulation of toll-like receptor 2 signaling pathway / hypoxia-inducible factor-1alpha signaling pathway / superoxide-generating NAD(P)H oxidase activity / positive regulation of defense response to bacterium / mucus secretion / Cross-presentation of particulate exogenous antigens (phagosomes) / perinuclear endoplasmic reticulum / cytochrome complex assembly ...smooth muscle hypertrophy / cellular response to L-glutamine / positive regulation of toll-like receptor 2 signaling pathway / hypoxia-inducible factor-1alpha signaling pathway / superoxide-generating NAD(P)H oxidase activity / positive regulation of defense response to bacterium / mucus secretion / Cross-presentation of particulate exogenous antigens (phagosomes) / perinuclear endoplasmic reticulum / cytochrome complex assembly / NADPH oxidase complex / respiratory burst / WNT5:FZD7-mediated leishmania damping / regulation of release of sequestered calcium ion into cytosol / ROS and RNS production in phagocytes / cellular response to ethanol / Oxidoreductases / superoxide anion generation / response to angiotensin / hydrogen peroxide biosynthetic process / positive regulation of mucus secretion / positive regulation of reactive oxygen species biosynthetic process / monoatomic ion channel complex / response to aldosterone / superoxide metabolic process / Detoxification of Reactive Oxygen Species / tertiary granule membrane / RHO GTPases Activate NADPH Oxidases / RAC2 GTPase cycle / RAC3 GTPase cycle / specific granule membrane / positive regulation of phagocytosis / monoatomic ion transmembrane transport / RAC1 GTPase cycle / cellular response to cadmium ion / response to nutrient / secretory granule / establishment of localization in cell / defense response / VEGFA-VEGFR2 Pathway / SH3 domain binding / phagocytic vesicle membrane / positive regulation of angiogenesis / positive regulation of interleukin-6 production / positive regulation of tumor necrosis factor production / nuclear envelope / flavin adenine dinucleotide binding / oxidoreductase activity / electron transfer activity / endosome / response to xenobiotic stimulus / inflammatory response / protein heterodimerization activity / innate immune response / neuronal cell body / dendrite / heme binding / Neutrophil degranulation / endoplasmic reticulum membrane / membrane / metal ion binding / plasma membrane
Similarity search - Function
Cytochrome b245, heavy chain / Cytochrome b558 alpha-subunit / Cytochrome Cytochrome b558 alpha-subunit / Ferric reductase, NAD binding domain / Ferric reductase NAD binding domain / FAD-binding 8 / FAD-binding domain / Ferric reductase transmembrane component-like domain / Ferric reductase like transmembrane component / FAD-binding domain, ferredoxin reductase-type ...Cytochrome b245, heavy chain / Cytochrome b558 alpha-subunit / Cytochrome Cytochrome b558 alpha-subunit / Ferric reductase, NAD binding domain / Ferric reductase NAD binding domain / FAD-binding 8 / FAD-binding domain / Ferric reductase transmembrane component-like domain / Ferric reductase like transmembrane component / FAD-binding domain, ferredoxin reductase-type / Ferredoxin-NADP reductase (FNR), nucleotide-binding domain / Ferredoxin reductase-type FAD binding domain profile. / Riboflavin synthase-like beta-barrel
Similarity search - Domain/homology
FLAVIN-ADENINE DINUCLEOTIDE / PROTOPORPHYRIN IX CONTAINING FE / Cytochrome b-245 heavy chain / Cytochrome b-245 light chain
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.99 Å
AuthorsChen, L. / Liu, X.
Funding support China, 4items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)91957201 China
National Natural Science Foundation of China (NSFC)31821091 China
National Natural Science Foundation of China (NSFC)31870833 China
Ministry of Science and Technology (MoST, China)2022YFA1303000 China
CitationJournal: Nature / Year: 2024
Title: Structure of human phagocyte NADPH oxidase in the activated state.
Authors: Xiaoyu Liu / Yiting Shi / Rui Liu / Kangcheng Song / Lei Chen /
Abstract: Phagocyte NADPH oxidase, a protein complex with a core made up of NOX2 and p22 subunits, is responsible for transferring electrons from intracellular NADPH to extracellular oxygen. This process ...Phagocyte NADPH oxidase, a protein complex with a core made up of NOX2 and p22 subunits, is responsible for transferring electrons from intracellular NADPH to extracellular oxygen. This process generates superoxide anions that are vital for killing pathogens. The activation of phagocyte NADPH oxidase requires membrane translocation and the binding of several cytosolic factors. However, the exact mechanism by which cytosolic factors bind to and activate NOX2 is not well understood. Here we present the structure of the human NOX2-p22 complex activated by fragments of three cytosolic factors: p47, p67 and Rac1. The structure reveals that the p67-Rac1 complex clamps onto the dehydrogenase domain of NOX2 and induces its contraction, which stabilizes the binding of NADPH and results in a reduction of the distance between the NADPH-binding domain and the flavin adenine dinucleotide (FAD)-binding domain. Furthermore, the dehydrogenase domain docks onto the bottom of the transmembrane domain of NOX2, which reduces the distance between FAD and the inner haem. These structural rearrangements might facilitate the efficient transfer of electrons between the redox centres in NOX2 and lead to the activation of phagocyte NADPH oxidase.
History
DepositionNov 9, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jan 24, 2024Provider: repository / Type: Initial release
Revision 1.1Feb 28, 2024Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Mar 20, 2024Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Cytochrome b-245 light chain
B: Cytochrome b-245 heavy chain
H: 7D5 Fab heavy chain
L: 7D5 Fab light chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)143,33211
Polymers140,2604
Non-polymers3,0727
Water181
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Cytochrome b-245 ... , 2 types, 2 molecules AB

#1: Protein Cytochrome b-245 light chain


Mass: 21005.398 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CYBA / Production host: Homo sapiens (human) / References: UniProt: P13498
#2: Protein Cytochrome b-245 heavy chain


Mass: 65412.727 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CYBB / Production host: Homo sapiens (human) / References: UniProt: P04839

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Antibody , 2 types, 2 molecules HL

#3: Antibody 7D5 Fab heavy chain


Mass: 27603.949 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Escherichia coli (E. coli)
#4: Antibody 7D5 Fab light chain


Mass: 26238.188 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Escherichia coli (E. coli)

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Sugars , 2 types, 3 molecules

#5: 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


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}}LINUCSPDB-CARE
#8: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 4 types, 5 molecules

#6: Chemical ChemComp-FAD / FLAVIN-ADENINE DINUCLEOTIDE


Mass: 785.550 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H33N9O15P2 / Comment: FAD*YM
#7: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#9: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#10: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: resting NOX2-p22 complex / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 52 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 2.99 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 183394 / Symmetry type: POINT

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