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- PDB-8wsa: Cryo-EM Structure of Mouse TLR4/MD-2/DLAM5 Complex -

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Basic information

Entry
Database: PDB / ID: 8wsa
TitleCryo-EM Structure of Mouse TLR4/MD-2/DLAM5 Complex
Components
  • Lymphocyte antigen 96
  • Toll-like receptor 4
KeywordsIMMUNE SYSTEM / Innate immune system / Toll-like receptors / TLR4 agonist / Vaccine adjuvants / Disaccharide-based lipid A mimetics
Function / homology
Function and homology information


MyD88-independent TLR4 cascade / Caspase activation via Death Receptors in the presence of ligand / TRIF-mediated programmed cell death / Toll Like Receptor 4 (TLR4) Cascade / nitric oxide production involved in inflammatory response / Heme signaling / Regulation of TLR by endogenous ligand / MHC class II biosynthetic process / positive regulation of cellular response to macrophage colony-stimulating factor stimulus / TRAF6-mediated induction of TAK1 complex within TLR4 complex ...MyD88-independent TLR4 cascade / Caspase activation via Death Receptors in the presence of ligand / TRIF-mediated programmed cell death / Toll Like Receptor 4 (TLR4) Cascade / nitric oxide production involved in inflammatory response / Heme signaling / Regulation of TLR by endogenous ligand / MHC class II biosynthetic process / positive regulation of cellular response to macrophage colony-stimulating factor stimulus / TRAF6-mediated induction of TAK1 complex within TLR4 complex / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / IKK complex recruitment mediated by RIP1 / lipopolysaccharide immune receptor activity / positive regulation of nucleotide-binding oligomerization domain containing 1 signaling pathway / positive regulation of matrix metallopeptidase secretion / Toll-like receptor 4 binding / mast cell activation / positive regulation of lymphocyte proliferation / lipopolysaccharide receptor complex / detection of lipopolysaccharide / intestinal epithelial structure maintenance / regulation of dendritic cell cytokine production / negative regulation of interleukin-23 production / lymphocyte proliferation / cellular response to oxidised low-density lipoprotein particle stimulus / wound healing involved in inflammatory response / B cell proliferation involved in immune response / positive regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway / nucleotide-binding oligomerization domain containing 1 signaling pathway / activation of NF-kappaB-inducing kinase activity / positive regulation of stress-activated MAPK cascade / positive regulation of interleukin-1 production / positive regulation of interleukin-13 production / macrophage activation / TRIF-dependent toll-like receptor signaling pathway / astrocyte development / microglia differentiation / nucleotide-binding oligomerization domain containing 2 signaling pathway / positive regulation of MHC class II biosynthetic process / positive regulation of macrophage activation / NAD+ nucleosidase activity, cyclic ADP-ribose generating / positive regulation of platelet activation / positive regulation of lipopolysaccharide-mediated signaling pathway / negative regulation of interleukin-17 production / positive regulation of cytokine production involved in inflammatory response / positive regulation of chemokine (C-X-C motif) ligand 2 production / positive regulation of extrinsic apoptotic signaling pathway / negative regulation of cold-induced thermogenesis / MyD88-dependent toll-like receptor signaling pathway / positive regulation of macrophage cytokine production / toll-like receptor 4 signaling pathway / toll-like receptor signaling pathway / positive regulation of smooth muscle cell migration / positive regulation of reactive oxygen species biosynthetic process / positive regulation of NLRP3 inflammasome complex assembly / : / cellular response to lipoteichoic acid / negative regulation of interleukin-6 production / positive regulation of interferon-alpha production / negative regulation of type II interferon production / B cell proliferation / positive regulation of interleukin-10 production / phagocytic cup / negative regulation of tumor necrosis factor production / phagocytosis / stress-activated MAPK cascade / positive regulation of chemokine production / JNK cascade / ruffle / cellular response to platelet-derived growth factor stimulus / positive regulation of B cell proliferation / nitric oxide biosynthetic process / positive regulation of interleukin-12 production / ERK1 and ERK2 cascade / activation of innate immune response / positive regulation of MAP kinase activity / positive regulation of interferon-beta production / lipopolysaccharide-mediated signaling pathway / positive regulation of interleukin-1 beta production / neurogenesis / positive regulation of interleukin-8 production / positive regulation of smooth muscle cell proliferation / response to bacterium / positive regulation of JNK cascade / lipopolysaccharide binding / positive regulation of non-canonical NF-kappaB signal transduction / negative regulation of ERK1 and ERK2 cascade / cellular response to type II interferon / positive regulation of interleukin-6 production / cellular response to mechanical stimulus / positive regulation of inflammatory response / positive regulation of type II interferon production / cellular response to amyloid-beta / positive regulation of tumor necrosis factor production / transmembrane signaling receptor activity / positive regulation of nitric oxide biosynthetic process / positive regulation of NF-kappaB transcription factor activity / cellular response to lipopolysaccharide
Similarity search - Function
Lymphocyte antigen 96 / MD-2-related lipid-recognition domain / Domain involved in innate immunity and lipid metabolism. / Toll-like receptor / TIR domain / Cysteine-rich flanking region, C-terminal / Leucine rich repeat C-terminal domain / Toll - interleukin 1 - resistance / TIR domain profile. / Toll/interleukin-1 receptor homology (TIR) domain ...Lymphocyte antigen 96 / MD-2-related lipid-recognition domain / Domain involved in innate immunity and lipid metabolism. / Toll-like receptor / TIR domain / Cysteine-rich flanking region, C-terminal / Leucine rich repeat C-terminal domain / Toll - interleukin 1 - resistance / TIR domain profile. / Toll/interleukin-1 receptor homology (TIR) domain / Toll/interleukin-1 receptor homology (TIR) domain superfamily / Leucine rich repeat / Leucine-rich repeat, typical subtype / Leucine-rich repeats, typical (most populated) subfamily / Leucine-rich repeat / Leucine-rich repeat domain superfamily / Immunoglobulin E-set
Similarity search - Domain/homology
: / (3R)-3-(dodecanoyloxy)tetradecanoic acid / : / Chem-GP4 / : / Lymphocyte antigen 96 / Toll-like receptor 4
Similarity search - Component
Biological speciesMus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsFu, Y. / Kim, H. / Zamyatina, A. / Kim, H.M.
Funding support Korea, Republic Of, 1items
OrganizationGrant numberCountry
Other governmentInstitute for Basic Science, IBS Korea, Republic Of
CitationJournal: To Be Published
Title: Structural insight on tailored modulation of TLR4-mediated pro-inflammatory response by disaccharide lipid A mimetics
Authors: Fu, Y. / Kim, H.
History
DepositionOct 17, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 23, 2024Provider: repository / Type: Initial release
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Revision 1.1Nov 6, 2024Group: Data collection / Category: em_admin / Item: _em_admin.last_update
Revision 2.0Feb 5, 2025Group: Advisory / Atomic model ...Advisory / Atomic model / Author supporting evidence / Data collection / Database references / Derived calculations / Polymer sequence / Refinement description / Source and taxonomy / Structure summary
Category: atom_site / audit_author ...atom_site / audit_author / em_admin / em_entity_assembly / entity / entity_poly / entity_poly_seq / entity_src_gen / pdbx_contact_author / pdbx_entity_instance_feature / pdbx_entity_nonpoly / pdbx_modification_feature / pdbx_nonpoly_scheme / pdbx_poly_seq_scheme / pdbx_struct_sheet_hbond / pdbx_unobs_or_zero_occ_atoms / pdbx_unobs_or_zero_occ_residues / pdbx_validate_close_contact / pdbx_validate_torsion / refine_ls_restr / struct_asym / struct_conf / struct_conn / struct_mon_prot_cis / struct_ref / struct_ref_seq / struct_sheet / struct_sheet_order / struct_sheet_range
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.label_seq_id / _atom_site.occupancy / _atom_site.type_symbol / _em_admin.last_update / _em_entity_assembly.entity_id_list / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_number_of_molecules / _entity_poly.pdbx_seq_one_letter_code / _entity_poly.pdbx_seq_one_letter_code_can / _entity_poly.pdbx_strand_id / _entity_poly_seq.entity_id / _entity_poly_seq.mon_id / _entity_poly_seq.num / _entity_src_gen.pdbx_end_seq_num / _entity_src_gen.pdbx_gene_src_gene / _pdbx_entity_instance_feature.auth_comp_id / _pdbx_entity_instance_feature.comp_id / _pdbx_entity_nonpoly.comp_id / _pdbx_entity_nonpoly.name / _pdbx_modification_feature.auth_asym_id / _pdbx_modification_feature.auth_seq_id / _pdbx_modification_feature.label_asym_id / _pdbx_modification_feature.label_seq_id / _pdbx_modification_feature.modified_residue_auth_asym_id / _pdbx_modification_feature.modified_residue_auth_seq_id / _pdbx_modification_feature.modified_residue_label_asym_id / _pdbx_modification_feature.modified_residue_label_seq_id / _pdbx_nonpoly_scheme.auth_mon_id / _pdbx_nonpoly_scheme.auth_seq_num / _pdbx_nonpoly_scheme.entity_id / _pdbx_nonpoly_scheme.mon_id / _pdbx_nonpoly_scheme.pdb_mon_id / _pdbx_nonpoly_scheme.pdb_seq_num / _pdbx_nonpoly_scheme.pdb_strand_id / _pdbx_poly_seq_scheme.asym_id / _pdbx_poly_seq_scheme.auth_mon_id / _pdbx_poly_seq_scheme.auth_seq_num / _pdbx_poly_seq_scheme.entity_id / _pdbx_poly_seq_scheme.mon_id / _pdbx_poly_seq_scheme.ndb_seq_num / _pdbx_poly_seq_scheme.pdb_mon_id / _pdbx_poly_seq_scheme.pdb_seq_num / _pdbx_poly_seq_scheme.pdb_strand_id / _pdbx_poly_seq_scheme.seq_id / _pdbx_struct_sheet_hbond.range_1_auth_asym_id / _pdbx_struct_sheet_hbond.range_1_auth_atom_id / _pdbx_struct_sheet_hbond.range_1_auth_comp_id / _pdbx_struct_sheet_hbond.range_1_auth_seq_id / _pdbx_struct_sheet_hbond.range_1_label_asym_id / _pdbx_struct_sheet_hbond.range_1_label_atom_id / _pdbx_struct_sheet_hbond.range_1_label_comp_id / _pdbx_struct_sheet_hbond.range_1_label_seq_id / _pdbx_struct_sheet_hbond.range_2_auth_asym_id / _pdbx_struct_sheet_hbond.range_2_auth_atom_id / _pdbx_struct_sheet_hbond.range_2_auth_comp_id / _pdbx_struct_sheet_hbond.range_2_auth_seq_id / _pdbx_struct_sheet_hbond.range_2_label_asym_id / _pdbx_struct_sheet_hbond.range_2_label_atom_id / _pdbx_struct_sheet_hbond.range_2_label_comp_id / _pdbx_struct_sheet_hbond.range_2_label_seq_id / _pdbx_struct_sheet_hbond.range_id_1 / _pdbx_struct_sheet_hbond.range_id_2 / _pdbx_struct_sheet_hbond.sheet_id / _pdbx_unobs_or_zero_occ_atoms.auth_seq_id / _pdbx_unobs_or_zero_occ_atoms.label_asym_id / _pdbx_unobs_or_zero_occ_residues.auth_asym_id / _pdbx_unobs_or_zero_occ_residues.auth_comp_id / _pdbx_unobs_or_zero_occ_residues.auth_seq_id / _pdbx_unobs_or_zero_occ_residues.label_asym_id / _pdbx_unobs_or_zero_occ_residues.label_comp_id / _pdbx_unobs_or_zero_occ_residues.label_seq_id / _pdbx_validate_torsion.auth_asym_id / _pdbx_validate_torsion.auth_comp_id / _pdbx_validate_torsion.auth_seq_id / _pdbx_validate_torsion.phi / _pdbx_validate_torsion.psi / _struct_asym.entity_id / _struct_conf.beg_label_asym_id / _struct_conf.end_label_asym_id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_mon_prot_cis.label_asym_id / _struct_mon_prot_cis.pdbx_label_asym_id_2 / _struct_ref.db_code / _struct_ref.pdbx_align_begin / _struct_ref.pdbx_db_accession / _struct_ref.pdbx_seq_one_letter_code / _struct_ref_seq.db_align_beg / _struct_ref_seq.db_align_end / _struct_ref_seq.pdbx_auth_seq_align_beg / _struct_ref_seq.pdbx_auth_seq_align_end / _struct_ref_seq.pdbx_db_accession / _struct_ref_seq.pdbx_strand_id / _struct_ref_seq.ref_id / _struct_ref_seq.seq_align_end / _struct_sheet.number_strands / _struct_sheet_order.range_id_1 / _struct_sheet_order.range_id_2 / _struct_sheet_order.sense / _struct_sheet_order.sheet_id / _struct_sheet_range.beg_auth_asym_id / _struct_sheet_range.beg_auth_comp_id / _struct_sheet_range.beg_auth_seq_id / _struct_sheet_range.beg_label_asym_id / _struct_sheet_range.beg_label_comp_id / _struct_sheet_range.beg_label_seq_id / _struct_sheet_range.end_auth_asym_id / _struct_sheet_range.end_auth_comp_id / _struct_sheet_range.end_auth_seq_id / _struct_sheet_range.end_label_asym_id / _struct_sheet_range.end_label_comp_id / _struct_sheet_range.end_label_seq_id / _struct_sheet_range.id / _struct_sheet_range.sheet_id
Description: Model completeness / Details: change some side chain rotamer of residues / Provider: author / Type: Coordinate replacement
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Category: atom_site / em_admin / pdbx_validate_close_contact
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Description: Model completeness / Details: modified rotamer of several residues / Provider: author / Type: Coordinate replacement
Revision 1.1Mar 19, 2025Data content type: EM metadata / Data content type: EM metadata / Group: Experimental summary / Data content type: EM metadata / Category: em_admin / Data content type: EM metadata / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Toll-like receptor 4
B: Toll-like receptor 4
C: Lymphocyte antigen 96
D: Lymphocyte antigen 96
hetero molecules


Theoretical massNumber of molelcules
Total (without water)176,85028
Polymers170,1264
Non-polymers6,72424
Water00
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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Protein , 2 types, 4 molecules ABCD

#1: Protein Toll-like receptor 4


Mass: 68651.281 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Tlr4 / Cell line (production host): High Five / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9QUK6
#2: Protein Lymphocyte antigen 96


Mass: 16411.711 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Ly96 / Cell line (production host): High Five / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9JHF9

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Sugars , 3 types, 18 molecules

#3: Sugar ChemComp-GP4 / 2-amino-2-deoxy-4-O-phosphono-alpha-D-glucopyranose / GLUCOSAMINE 4-PHOSPHATE / N-acetyl-4-O-phosphono-alpha-D-glucosamine / 2-amino-2-deoxy-4-O-phosphono-alpha-D-glucose / 2-amino-2-deoxy-4-O-phosphono-D-glucose / 2-amino-2-deoxy-4-O-phosphono-glucose


Type: D-saccharide, alpha linking / Mass: 259.151 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H14NO8P / Feature type: SUBJECT OF INVESTIGATION
IdentifierTypeProgram
a-D-GlcpN4PO3IUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
#5: 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.: 14 / 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
#8: Sugar ChemComp-X6N / [(2~{R},3~{S},4~{R},5~{S})-2-(hydroxymethyl)-5-methoxy-4,6-bis(oxidanyl)oxan-3-yl] dihydrogen phosphate


Type: D-saccharide, alpha linking / Mass: 274.162 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C7H15O9P / Feature type: SUBJECT OF INVESTIGATION

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Non-polymers , 3 types, 6 molecules

#4: Chemical ChemComp-A1L01 / (3~{S})-3-decanoyloxytetradecanoic acid


Mass: 398.620 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C24H46O4 / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical ChemComp-2IL / (3R)-3-(dodecanoyloxy)tetradecanoic acid


Mass: 426.673 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C26H50O4 / Feature type: SUBJECT OF INVESTIGATION
#7: Chemical ChemComp-0IL / (3R)-3-(tetradecanoyloxy)tetradecanoic acid


Mass: 454.726 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C28H54O4 / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationY

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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: mouse TLR4/MD2/DLAM5 complex / Type: COMPLEX / Entity ID: #2, #1 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Trichoplusia ni (cabbage looper)
Buffer solutionpH: 8
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMTrisTris1
2200 mMsodium chlorideNaCl1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: 10mA / Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationCryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 3300 nm / Nominal defocus min: 600 nm
Specimen holderCryogen: NITROGEN
Image recordingElectron dose: 40.1 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 6998

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Processing

EM software
IDNameVersionCategory
1cryoSPARC4.2.1particle selection
2EPUimage acquisition
4cryoSPARC4.2.1CTF correction
7PHENIX1.16_3549:model fitting
9cryoSPARC4.2.1initial Euler assignment
10cryoSPARC4.2.1final Euler assignment
12cryoSPARC4.2.13D reconstruction
13PHENIX1.16_3549:model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 714161 / Num. of class averages: 1 / Symmetry type: POINT
Atomic model buildingSpace: REAL
Atomic model buildingPDB-ID: 3VQ2

3vq2


Accession code: 3VQ2 / Source name: PDB / Type: experimental model

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