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- PDB-7wj2: Crystal structure of HLA-C*1402 complexed with 8-mer HIV gag peptide -

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Basic information

Entry
Database: PDB / ID: 7wj2
TitleCrystal structure of HLA-C*1402 complexed with 8-mer HIV gag peptide
Components
  • 8-mer peptide
  • Beta-2-microglobulin
  • MHC class I protein
KeywordsIMMUNE SYSTEM / MHC class I / antigen presentation
Function / homology
Function and homology information


antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / 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 ...antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / 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 / peptide antigen assembly with MHC class II protein complex / 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 / MHC class II protein complex / 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 / antigen processing and presentation of endogenous peptide antigen via MHC class I / positive regulation of T cell cytokine production / antigen processing and presentation of exogenous peptide antigen via MHC class II / MHC class I protein complex / positive regulation of immune response / peptide antigen binding / negative regulation of neurogenesis / positive regulation of receptor-mediated endocytosis / positive regulation of T cell activation / multicellular organismal-level iron ion homeostasis / cellular response to nicotine / positive regulation of T cell mediated cytotoxicity / specific granule lumen / recycling endosome membrane / phagocytic vesicle membrane / positive regulation of cellular senescence / negative regulation of epithelial cell proliferation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Interferon gamma signaling / MHC class II protein complex binding / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / tertiary granule lumen / DAP12 signaling / positive regulation of protein binding / iron ion transport / negative regulation of neuron projection development / ER-Phagosome pathway / early endosome membrane / T cell differentiation in thymus / protein refolding / protein homotetramerization / intracellular iron ion homeostasis / amyloid fibril formation / learning or memory / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / lysosomal membrane / Golgi membrane / external side of plasma membrane / signaling receptor binding / focal adhesion / Neutrophil degranulation / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / Golgi apparatus / endoplasmic reticulum / protein homodimerization activity / extracellular space / extracellular exosome / extracellular region / identical protein binding / membrane / plasma membrane / cytosol
Similarity search - Function
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. ...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 / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
ACETATE ION / MHC class I protein / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
Human immunodeficiency virus 1
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.28 Å
AuthorsKuroha, J. / Morita, D. / Asa, M. / Sugita, M.
Funding support Japan, 4items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)18K07172 Japan
Japan Society for the Promotion of Science (JSPS)19H04805 Japan
Japan Society for the Promotion of Science (JSPS)18K19563 Japan
Japan Society for the Promotion of Science (JSPS)18H02852 Japan
CitationJournal: J.Biol.Chem. / Year: 2022
Title: Crystal structures of N-myristoylated lipopeptide-bound HLA class I complexes indicate reorganization of B-pocket architecture upon ligand binding.
Authors: Asa, M. / Morita, D. / Kuroha, J. / Mizutani, T. / Mori, N. / Mikami, B. / Sugita, M.
History
DepositionJan 5, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 22, 2022Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2022Group: Database references / Category: citation / Item: _citation.journal_volume
Revision 1.2Nov 29, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.3Oct 23, 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: MHC class I protein
B: Beta-2-microglobulin
C: 8-mer peptide
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,24212
Polymers44,7253
Non-polymers5179
Water6,017334
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4520 Å2
ΔGint-33 kcal/mol
Surface area19130 Å2
MethodPISA
Unit cell
Length a, b, c (Å)92.655, 76.885, 62.053
Angle α, β, γ (deg.)90.000, 119.540, 90.000
Int Tables number5
Space group name H-MC121
Space group name HallC2y
Symmetry operation#1: x,y,z
#2: -x,y,-z
#3: x+1/2,y+1/2,z
#4: -x+1/2,y+1/2,-z

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein MHC class I protein


Mass: 32012.070 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-C / Production host: Escherichia coli BL21(DE3) (bacteria) / Variant (production host): Rosseta2 / References: UniProt: A0A890UPS4
#2: Protein Beta-2-microglobulin / hB2m


Mass: 11819.238 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: B2M, CDABP0092, HDCMA22P / Production host: Escherichia coli BL21(DE3) (bacteria) / Variant (production host): Rosseta2 / References: UniProt: P61769

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Protein/peptide , 1 types, 1 molecules C

#3: Protein/peptide 8-mer peptide


Mass: 894.024 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Human immunodeficiency virus 1

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Non-polymers , 4 types, 343 molecules

#4: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: C2H6O2
#5: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#6: Chemical ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H3O2
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 334 / 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: 2.15 Å3/Da / Density % sol: 42.78 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 4.5 / Details: 100 mM sodium acetate, 20 % PEG Smear Low

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL26B1 / Wavelength: 1 Å
DetectorType: RAYONIX MX-225 / Detector: CCD / Date: Dec 15, 2018
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.28→50 Å / Num. obs: 96254 / % possible obs: 99 % / Redundancy: 4.3 % / Biso Wilson estimate: 13.59 Å2 / Rmerge(I) obs: 0.056 / Net I/σ(I): 36.6
Reflection shellResolution: 1.28→1.3 Å / Rmerge(I) obs: 0.384 / Num. unique obs: 4687

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Processing

Software
NameVersionClassification
PHENIX1.19.2_4158refinement
HKL-2000data reduction
HKL-2000data scaling
HKL-2000data collection
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5W6A

5w6a


Resolution: 1.28→38.44 Å / SU ML: 0.1254 / Cross valid method: FREE R-VALUE / σ(F): 1.36 / Phase error: 16.8176
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.1781 4799 4.99 %
Rwork0.1557 91439 -
obs0.1568 96238 98.9 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 20.38 Å2
Refinement stepCycle: LAST / Resolution: 1.28→38.44 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3152 0 33 334 3519
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00823504
X-RAY DIFFRACTIONf_angle_d1.05884768
X-RAY DIFFRACTIONf_chiral_restr0.0871472
X-RAY DIFFRACTIONf_plane_restr0.0062646
X-RAY DIFFRACTIONf_dihedral_angle_d14.63191323
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.28-1.290.27381510.22852895X-RAY DIFFRACTION94.27
1.29-1.310.23341510.21123065X-RAY DIFFRACTION98.08
1.31-1.330.21391640.18452943X-RAY DIFFRACTION97.43
1.33-1.340.24471640.17573000X-RAY DIFFRACTION97.96
1.34-1.360.20181330.16653029X-RAY DIFFRACTION98.05
1.36-1.380.19731790.15632982X-RAY DIFFRACTION97.56
1.38-1.40.17591700.14963020X-RAY DIFFRACTION98.79
1.4-1.420.17541350.14873023X-RAY DIFFRACTION98.14
1.42-1.440.17271560.14683064X-RAY DIFFRACTION98.26
1.44-1.460.15391460.14843008X-RAY DIFFRACTION99.03
1.46-1.490.20591580.14853028X-RAY DIFFRACTION98.49
1.49-1.520.18161750.14483051X-RAY DIFFRACTION98.53
1.52-1.550.17791620.14263058X-RAY DIFFRACTION99.17
1.55-1.580.16281640.13612998X-RAY DIFFRACTION99.12
1.58-1.610.16371600.143036X-RAY DIFFRACTION99.1
1.61-1.650.16871670.14493043X-RAY DIFFRACTION99.14
1.65-1.690.17491670.1413072X-RAY DIFFRACTION99.36
1.69-1.740.18341790.13583026X-RAY DIFFRACTION99.38
1.74-1.790.15741590.13693091X-RAY DIFFRACTION99.6
1.79-1.850.17021630.13553061X-RAY DIFFRACTION99.66
1.85-1.910.18391540.1413058X-RAY DIFFRACTION99.69
1.91-1.990.17031470.14463093X-RAY DIFFRACTION99.85
1.99-2.080.14811590.14163113X-RAY DIFFRACTION99.88
2.08-2.190.17941810.14673037X-RAY DIFFRACTION99.91
2.19-2.330.18631420.15773121X-RAY DIFFRACTION99.97
2.33-2.50.18441580.16443099X-RAY DIFFRACTION99.91
2.5-2.760.19641610.17553104X-RAY DIFFRACTION99.94
2.76-3.160.19051510.1693092X-RAY DIFFRACTION99.97
3.16-3.970.17791670.16163111X-RAY DIFFRACTION99.73
3.98-38.440.15951760.15623118X-RAY DIFFRACTION98.98

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