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- PDB-7m8u: Crystal Structure of HLA-B*35:01 in complex with IPFAMQMAY, an 9-... -

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Basic information

Entry
Database: PDB / ID: 7m8u
TitleCrystal Structure of HLA-B*35:01 in complex with IPFAMQMAY, an 9-mer epitope from SARS-CoV-2 spike (S896-904)
Components
  • Beta-2-microglobulin
  • HLA class I histocompatibility antigen B, alpha chain
  • Spike protein S2 peptide
KeywordsIMMUNE SYSTEM / TCR / T cell / spike / peptide presentation / immunology
Function / homology
Function and homology information


antigen processing and presentation / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / negative regulation of receptor binding / DAP12 interactions / cellular response to iron ion / Endosomal/Vacuolar pathway ...antigen processing and presentation / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / negative regulation of receptor binding / DAP12 interactions / cellular response to iron ion / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / lumenal side of endoplasmic reticulum membrane / cellular response to iron(III) ion / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / negative regulation of forebrain neuron differentiation / regulation of erythrocyte differentiation / peptide antigen assembly with MHC class I protein complex / ER to Golgi transport vesicle membrane / regulation of iron ion transport / response to molecule of bacterial origin / MHC class I peptide loading complex / HFE-transferrin receptor complex / T cell mediated cytotoxicity / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / MHC class I protein complex / negative regulation of neurogenesis / positive regulation of receptor-mediated endocytosis / peptide antigen assembly with MHC class II protein complex / multicellular organismal-level iron ion homeostasis / MHC class II protein complex / cellular response to nicotine / specific granule lumen / positive regulation of cellular senescence / positive regulation of T cell mediated cytotoxicity / recycling endosome membrane / phagocytic vesicle membrane / peptide antigen binding / antigen processing and presentation of exogenous peptide antigen via MHC class II / negative regulation of epithelial cell proliferation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / positive regulation of immune response / Interferon gamma signaling / Modulation by Mtb of host immune system / positive regulation of T cell activation / sensory perception of smell / negative regulation of neuron projection development / positive regulation of protein binding / tertiary granule lumen / DAP12 signaling / MHC class II protein complex binding / late endosome membrane / iron ion transport / ER-Phagosome pathway / T cell differentiation in thymus / early endosome membrane / protein refolding / protein homotetramerization / intracellular iron ion homeostasis / Maturation of spike protein / viral translation / Translation of Structural Proteins / Virion Assembly and Release / host cell surface / host extracellular space / suppression by virus of host tetherin activity / amyloid fibril formation / Induction of Cell-Cell Fusion / structural constituent of virion / entry receptor-mediated virion attachment to host cell / host cell endoplasmic reticulum-Golgi intermediate compartment membrane / receptor-mediated endocytosis of virus by host cell / membrane fusion / Attachment and Entry / positive regulation of viral entry into host cell / learning or memory / receptor-mediated virion attachment to host cell / receptor ligand activity / host cell surface receptor binding / symbiont-mediated suppression of host innate immune response / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / lysosomal membrane / Golgi membrane / external side of plasma membrane / fusion of virus membrane with host plasma membrane / focal adhesion / fusion of virus membrane with host endosome membrane / viral envelope / Neutrophil degranulation / virion attachment to host cell / SARS-CoV-2 activates/modulates innate and adaptive immune responses / host cell plasma membrane / structural molecule activity / virion membrane / Golgi apparatus / cell surface / endoplasmic reticulum / protein homodimerization activity
Similarity search - Function
MHC class I, alpha chain, C-terminal / MHC_I C-terminus / MHC class I alpha chain, alpha1 alpha2 domains / Class I Histocompatibility antigen, domains alpha 1 and 2 / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / MHC classes I/II-like antigen recognition protein / : ...MHC class I, alpha chain, C-terminal / MHC_I C-terminus / MHC class I alpha chain, alpha1 alpha2 domains / Class I Histocompatibility antigen, domains alpha 1 and 2 / Beta-2-Microglobulin / : / MHC class I-like antigen recognition-like / MHC class I-like antigen recognition-like superfamily / MHC classes I/II-like antigen recognition protein / : / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Spike (S) protein S1 subunit, receptor-binding domain, SARS-CoV-2 / Spike (S) protein S1 subunit, N-terminal domain, SARS-CoV-like / Coronavirus spike glycoprotein S1, C-terminal / Coronavirus spike glycoprotein S1, C-terminal / Spike glycoprotein, betacoronavirus / Spike glycoprotein, N-terminal domain superfamily / Betacoronavirus spike (S) glycoprotein S1 subunit N-terminal (NTD) domain profile. / Betacoronavirus spike (S) glycoprotein S1 subunit C-terminal (CTD) domain profile. / Spike (S) protein S1 subunit, receptor-binding domain, betacoronavirus / Spike S1 subunit, receptor binding domain superfamily, betacoronavirus / Spike glycoprotein S1, N-terminal domain, betacoronavirus-like / Betacoronavirus-like spike glycoprotein S1, N-terminal / Betacoronavirus spike glycoprotein S1, receptor binding / Spike glycoprotein S2, coronavirus, heptad repeat 1 / Spike glycoprotein S2, coronavirus, heptad repeat 2 / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 1 (HR1) region profile. / Coronavirus spike (S) glycoprotein S2 subunit heptad repeat 2 (HR2) region profile. / Spike glycoprotein S2 superfamily, coronavirus / Spike glycoprotein S2, coronavirus / Coronavirus spike glycoprotein S2 / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
PHOSPHATE ION / Spike glycoprotein / Beta-2-microglobulin / HLA class I histocompatibility antigen B alpha chain
Similarity search - Component
Biological speciesHomo sapiens (human)
Severe acute respiratory syndrome coronavirus 2
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.45 Å
AuthorsGras, S. / Nguyen, A.T. / Szeto, C.
Funding support Australia, 1items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia)1159272 Australia
CitationJournal: Biophysica / Year: 2021
Title: SARS-CoV-2 Spike-Derived Peptides Presented by HLA Molecules
Authors: Nguyen, A.T. / Szeto, C. / Jayasinghe, D. / Lobos, C.A. / Halim, H. / Chatzileontiadou, D.S.M. / Grant, E.J. / Gras, S.
History
DepositionMar 30, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 23, 2021Provider: repository / Type: Initial release
Revision 1.1Oct 18, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / database_2 / pdbx_initial_refinement_model
Item: _citation.country / _citation.journal_id_ISSN ..._citation.country / _citation.journal_id_ISSN / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.2Nov 6, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: HLA class I histocompatibility antigen B, alpha chain
B: Beta-2-microglobulin
C: Spike protein S2 peptide
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,2378
Polymers44,9783
Non-polymers2595
Water7,404411
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5050 Å2
ΔGint-50 kcal/mol
Surface area19100 Å2
MethodPISA
Unit cell
Length a, b, c (Å)51.238, 82.380, 111.011
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein HLA class I histocompatibility antigen B, alpha chain / HLA-B*35:01:01:NEW / MHC class I antigen / MHC class I protein


Mass: 32027.324 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-B / Plasmid: pET / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q546I9
#2: Protein Beta-2-microglobulin


Mass: 11879.356 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: B2M, CDABP0092, HDCMA22P / Plasmid: pET / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P61769

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Protein/peptide , 1 types, 1 molecules C

#3: Protein/peptide Spike protein S2 peptide


Mass: 1071.311 Da / Num. of mol.: 1 / Fragment: UNP residues 896-904 / Source method: obtained synthetically / Details: spike
Source: (synth.) Severe acute respiratory syndrome coronavirus 2
References: UniProt: P0DTC2

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Non-polymers , 3 types, 416 molecules

#4: Chemical ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: PO4
#5: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Na
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 411 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.6 Å3/Da / Density % sol: 52.77 % / Mosaicity: 0.11 °
Crystal growTemperature: 277 K / Method: vapor diffusion, sitting drop / pH: 6.5 / Details: 0.2 sodium fluoride, 18% PEG 3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX2 / Wavelength: 0.98 Å
DetectorType: DECTRIS EIGER2 X 16M / Detector: PIXEL / Date: Jun 6, 2020
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98 Å / Relative weight: 1
ReflectionResolution: 1.44→46.52 Å / Num. obs: 84730 / % possible obs: 99.7 % / Redundancy: 13.2 % / Biso Wilson estimate: 24.49 Å2 / CC1/2: 0.999 / Rmerge(I) obs: 0.066 / Rpim(I) all: 0.019 / Rrim(I) all: 0.068 / Net I/σ(I): 16.4 / Num. measured all: 1114777 / Scaling rejects: 7
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. measured allNum. unique obsCC1/2Rpim(I) allRrim(I) allNet I/σ(I) obs% possible all
1.44-1.4712.11.3874708338970.7640.4051.4471.893.6
7.91-46.5210.80.04465406080.9980.0140.04745.298.6

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Processing

Software
NameVersionClassification
Aimless0.5.1data scaling
BUSTERrefinement
PDB_EXTRACT3.27data extraction
Cootmodel building
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4PRA

4pra


Resolution: 1.45→21.06 Å / Cor.coef. Fo:Fc: 0.95 / Cor.coef. Fo:Fc free: 0.941 / SU R Cruickshank DPI: 0.067 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 0.071 / SU Rfree Blow DPI: 0.072 / SU Rfree Cruickshank DPI: 0.068
RfactorNum. reflection% reflectionSelection details
Rfree0.229 4226 4.99 %RANDOM
Rwork0.204 ---
obs0.206 84615 99.8 %-
Displacement parametersBiso max: 110.6 Å2 / Biso mean: 31.35 Å2 / Biso min: 13.93 Å2
Baniso -1Baniso -2Baniso -3
1-3.1621 Å20 Å20 Å2
2--5.1392 Å20 Å2
3----8.3012 Å2
Refine analyzeLuzzati coordinate error obs: 0.22 Å
Refinement stepCycle: final / Resolution: 1.45→21.06 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3157 0 5 411 3573
Biso mean--54.25 40.22 -
Num. residues----384
Refine LS restraints
Refine-IDTypeNumberRestraint functionWeightDev ideal
X-RAY DIFFRACTIONt_dihedral_angle_d1124SINUSOIDAL2
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes568HARMONIC5
X-RAY DIFFRACTIONt_it3268HARMONIC20
X-RAY DIFFRACTIONt_nbd2SEMIHARMONIC5
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_chiral_improper_torsion406SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact3949SEMIHARMONIC4
X-RAY DIFFRACTIONt_bond_d3268HARMONIC20.01
X-RAY DIFFRACTIONt_angle_deg4446HARMONIC21.03
X-RAY DIFFRACTIONt_omega_torsion4.1
X-RAY DIFFRACTIONt_other_torsion17.47
LS refinement shellResolution: 1.45→1.46 Å / Rfactor Rfree error: 0 / Total num. of bins used: 50
RfactorNum. reflection% reflection
Rfree0.2872 85 5.02 %
Rwork0.2397 1608 -
all0.242 1693 -
obs--90.15 %

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