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- PDB-4u6x: Crystal Structure of HLA-A*0201 in complex with ALQDA, a 15 mer s... -

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Basic information

Entry
Database: PDB / ID: 4u6x
TitleCrystal Structure of HLA-A*0201 in complex with ALQDA, a 15 mer self-peptide
Components
  • ALQDA peptide, ALQDAGDSSRKEYFI
  • Beta-2-microglobulin
  • HLA class I histocompatibility antigen, A-2 alpha chain
KeywordsIMMUNE SYSTEM / HLA A*0201 / ligandome / TCR / T cell
Function / homology
Function and homology information


positive regulation of memory T cell activation / T cell mediated cytotoxicity directed against tumor cell target / TAP complex binding / Golgi medial cisterna / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / positive regulation of CD8-positive, alpha-beta T cell proliferation / CD8 receptor binding / antigen processing and presentation of exogenous peptide antigen via MHC class I / beta-2-microglobulin binding ...positive regulation of memory T cell activation / T cell mediated cytotoxicity directed against tumor cell target / TAP complex binding / Golgi medial cisterna / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / positive regulation of CD8-positive, alpha-beta T cell proliferation / CD8 receptor binding / antigen processing and presentation of exogenous peptide antigen via MHC class I / beta-2-microglobulin binding / endoplasmic reticulum exit site / TAP binding / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent / protection from natural killer cell mediated cytotoxicity / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent / detection of bacterium / T cell receptor binding / negative regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / transferrin transport / 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 / lumenal side of endoplasmic reticulum membrane / cellular response to iron(III) ion / negative regulation of forebrain neuron differentiation / MHC class II protein complex / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of iron ion transport / regulation of erythrocyte differentiation / HFE-transferrin receptor complex / response to molecule of bacterial origin / MHC class I peptide loading complex / T cell mediated cytotoxicity / positive regulation of T cell cytokine production / antigen processing and presentation of endogenous peptide antigen via MHC class I / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / MHC class I protein complex / peptide antigen binding / positive regulation of T cell activation / negative regulation of neurogenesis / positive regulation of receptor-mediated endocytosis / cellular response to nicotine / positive regulation of T cell mediated cytotoxicity / multicellular organismal-level iron ion homeostasis / specific granule lumen / positive regulation of type II interferon production / phagocytic vesicle membrane / recycling endosome membrane / Interferon gamma signaling / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / negative regulation of epithelial cell proliferation / MHC class II protein complex binding / Interferon alpha/beta signaling / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / positive regulation of cellular senescence / tertiary granule lumen / antibacterial humoral response / DAP12 signaling / T cell differentiation in thymus / T cell receptor signaling pathway / negative regulation of neuron projection development / E3 ubiquitin ligases ubiquitinate target proteins / ER-Phagosome pathway / protein refolding / early endosome membrane / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / defense response to Gram-positive bacterium / immune response / endoplasmic reticulum lumen / Amyloid fiber formation / Golgi membrane / signaling receptor binding / innate immune response / external side of plasma membrane / lysosomal membrane / focal adhesion / Neutrophil degranulation / endoplasmic reticulum membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / cell surface / endoplasmic reticulum / Golgi apparatus / protein homodimerization activity / extracellular space / RNA binding / extracellular exosome
Similarity search - Function
MHC class I, alpha chain, C-terminal / MHC_I C-terminus / MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / 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 class I, alpha chain, C-terminal / MHC_I C-terminus / MHC class I-like antigen recognition-like / Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1 / 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 / Immunoglobulins / Immunoglobulin-like / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
DI(HYDROXYETHYL)ETHER / HLA class I histocompatibility antigen, A alpha chain / HLA class I histocompatibility antigen, A alpha chain / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 1.68 Å
AuthorsGras, S. / Chabrol, E. / Rossjohn, J.
CitationJournal: J.Biol.Chem. / Year: 2015
Title: Naturally Processed Non-canonical HLA-A*02:01 Presented Peptides.
Authors: Hassan, C. / Chabrol, E. / Jahn, L. / Kester, M.G. / de Ru, A.H. / Drijfhout, J.W. / Rossjohn, J. / Falkenburg, J.H. / Heemskerk, M.H. / Gras, S. / van Veelen, P.A.
History
DepositionJul 30, 2014Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 24, 2014Provider: repository / Type: Initial release
Revision 1.1Dec 31, 2014Group: Database references
Revision 1.2Feb 11, 2015Group: Database references
Revision 1.3Nov 22, 2017Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations / Other / Refinement description / Source and taxonomy
Category: citation / diffrn_source ...citation / diffrn_source / entity_src_gen / pdbx_database_status / pdbx_entity_src_syn / pdbx_struct_assembly / pdbx_struct_assembly_gen / pdbx_struct_assembly_prop / pdbx_struct_oper_list / pdbx_validate_close_contact / pdbx_validate_symm_contact / software
Item: _citation.journal_id_CSD / _diffrn_source.pdbx_synchrotron_site ..._citation.journal_id_CSD / _diffrn_source.pdbx_synchrotron_site / _entity_src_gen.pdbx_alt_source_flag / _pdbx_database_status.pdb_format_compatible / _pdbx_entity_src_syn.pdbx_alt_source_flag / _pdbx_struct_assembly.oligomeric_details / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_assembly_prop.type / _pdbx_struct_assembly_prop.value / _pdbx_struct_oper_list.symmetry_operation / _pdbx_validate_symm_contact.auth_asym_id_2 / _pdbx_validate_symm_contact.auth_seq_id_1 / _pdbx_validate_symm_contact.auth_seq_id_2 / _pdbx_validate_symm_contact.dist / _pdbx_validate_symm_contact.site_symmetry_2
Revision 1.4Sep 27, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / refine_hist / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_dist_value / _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
Revision 1.5Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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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, A-2 alpha chain
B: Beta-2-microglobulin
P: ALQDA peptide, ALQDAGDSSRKEYFI
hetero molecules


Theoretical massNumber of molelcules
Total (without water)46,04112
Polymers45,5333
Non-polymers5099
Water6,467359
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5640 Å2
ΔGint-58 kcal/mol
Surface area18980 Å2
MethodPISA
Unit cell
Length a, b, c (Å)51.043, 79.063, 54.903
Angle α, β, γ (deg.)90.00, 111.11, 90.00
Int Tables number4
Space group name H-MP1211

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Components

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Protein , 2 types, 2 molecules AB

#1: Protein HLA class I histocompatibility antigen, A-2 alpha chain / MHC class I antigen A*2


Mass: 31951.316 Da / Num. of mol.: 1 / Fragment: UNP residues 25-300
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-A, HLAA / Plasmid: pET / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P01892, UniProt: P04439*PLUS
#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 (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P61769

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Protein/peptide , 1 types, 1 molecules P

#3: Protein/peptide ALQDA peptide, ALQDAGDSSRKEYFI


Mass: 1701.833 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: GL biochem / Source: (synth.) synthetic construct (others)

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Non-polymers , 4 types, 368 molecules

#4: Chemical
ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Cl
#5: Chemical ChemComp-PEG / DI(HYDROXYETHYL)ETHER


Mass: 106.120 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C4H10O3
#6: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 359 / Source method: isolated from a natural source / Formula: H2O

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Details

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: 2.27 Å3/Da / Density % sol: 45.78 %
Crystal growTemperature: 277 K / Method: evaporation / pH: 7.5 / Details: 18-22.5% PEG 3350, Hepes pH 7.5, 0.1M MgCl2

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.9537 Å
DetectorType: ADSC QUANTUM 210 / Detector: CCD / Date: Oct 19, 2013
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9537 Å / Relative weight: 1
ReflectionResolution: 1.68→51.218 Å / Num. all: 46457 / Num. obs: 46457 / % possible obs: 99.7 % / Redundancy: 5.6 % / Biso Wilson estimate: 17.48 Å2 / Rpim(I) all: 0.031 / Rrim(I) all: 0.076 / Rsym value: 0.069 / Net I/av σ(I): 10.212 / Net I/σ(I): 17.7 / Num. measured all: 262331
Reflection shell

Diffraction-ID: 1 / Rejects: _

Resolution (Å)Redundancy (%)Rmerge(I) obsMean I/σ(I) obsNum. measured allNum. unique allRpim(I) allRsym valueNet I/σ(I) obs% possible all
1.68-1.775.60.6951.13715266850.3180.6952.698.5
1.77-1.885.70.4361.83628464010.1980.4364.299.9
1.88-2.015.70.2353.33392659960.1070.2357.499.9
2.01-2.175.70.1495.23183456040.0680.14911.5100
2.17-2.375.70.1077.22953651900.0490.10715.699.9
2.37-2.655.70.077102679046840.0350.07720.3100
2.65-3.065.70.05314.32356941330.0240.05328.1100
3.06-3.755.70.03420.61988435120.0160.03441.9100
3.75-5.315.60.02526.11518827210.0110.02554.7100
5.31-47.6175.30.02623.9816815310.0120.02651.599.8

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Phasing

PhasingMethod: molecular replacement

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Processing

Software
NameVersionClassification
PHENIX(phenix.refine: 1.8.1_1168)refinement
SCALA3.3.20data scaling
XDSdata scaling
PDB_EXTRACT3.14data extraction
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3GSO

3gso


Resolution: 1.68→39.532 Å / SU ML: 0.18 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 19.95 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2016 2346 5.05 %
Rwork0.1634 --
obs0.1653 46425 99.7 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 1.68→39.532 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3159 0 27 359 3545
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0073592
X-RAY DIFFRACTIONf_angle_d1.0854906
X-RAY DIFFRACTIONf_dihedral_angle_d14.0971353
X-RAY DIFFRACTIONf_chiral_restr0.082494
X-RAY DIFFRACTIONf_plane_restr0.004660
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.68-1.7120.27851370.2282542X-RAY DIFFRACTION96
1.712-1.74920.28971360.22332540X-RAY DIFFRACTION100
1.7492-1.78990.28791380.21342558X-RAY DIFFRACTION100
1.7899-1.83470.2671420.2022618X-RAY DIFFRACTION100
1.8347-1.88430.22851380.19312587X-RAY DIFFRACTION100
1.8843-1.93970.22121400.18412564X-RAY DIFFRACTION100
1.9397-2.00230.2251350.17792592X-RAY DIFFRACTION100
2.0023-2.07390.19511470.16812587X-RAY DIFFRACTION100
2.0739-2.15690.22981290.1612593X-RAY DIFFRACTION100
2.1569-2.25510.18391560.15862570X-RAY DIFFRACTION100
2.2551-2.3740.20931380.16792601X-RAY DIFFRACTION100
2.374-2.52270.23551430.17212593X-RAY DIFFRACTION100
2.5227-2.71740.20131270.17072623X-RAY DIFFRACTION100
2.7174-2.99080.2191510.16352590X-RAY DIFFRACTION100
2.9908-3.42340.16421340.15092628X-RAY DIFFRACTION100
3.4234-4.31220.15651280.13172632X-RAY DIFFRACTION100
4.3122-39.54250.17921270.15272661X-RAY DIFFRACTION100

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