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- PDB-1jht: Crystal structure of HLA-A2*0201 in complex with a nonameric alte... -

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Basic information

Entry
Database: PDB / ID: 1jht
TitleCrystal structure of HLA-A2*0201 in complex with a nonameric altered peptide ligand (ALGIGILTV) from the MART-1/Melan-A.
Components
  • HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN
  • beta-2-microglobulin
  • nonameric peptide ligand from the MART-1/Melan-A
KeywordsIMMUNE SYSTEM / HUMAN / TUMOR IMMUNITY / MELANOMA ANTIGEN / MHC / VACCINATION / Melanoma / Class I
Function / homology
Function and homology information


T cell mediated cytotoxicity directed against tumor cell target / positive regulation of memory T cell activation / TAP complex binding / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / Golgi medial cisterna / 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 / endoplasmic reticulum exit site ...T cell mediated cytotoxicity directed against tumor cell target / positive regulation of memory T cell activation / TAP complex binding / positive regulation of CD8-positive, alpha-beta T cell activation / CD8-positive, alpha-beta T cell activation / Golgi medial cisterna / 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 / endoplasmic reticulum exit site / antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent / TAP binding / protection from natural killer cell mediated cytotoxicity / beta-2-microglobulin binding / T cell receptor binding / detection of bacterium / 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 / DAP12 interactions / negative regulation of receptor binding / 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 / lumenal side of endoplasmic reticulum membrane / cellular response to iron ion / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / 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 / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / 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 / MHC class I protein complex / multicellular organismal-level iron ion homeostasis / negative regulation of neurogenesis / peptide antigen assembly with MHC class II protein complex / positive regulation of receptor-mediated endocytosis / MHC class II protein complex / 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 / peptide antigen binding / negative regulation of epithelial cell proliferation / antigen processing and presentation of exogenous peptide antigen via MHC class II / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Interferon gamma signaling / positive regulation of immune response / Modulation by Mtb of host immune system / Interferon alpha/beta signaling / positive regulation of type II interferon production / sensory perception of smell / positive regulation of T cell activation / positive regulation of protein binding / tertiary granule lumen / E3 ubiquitin ligases ubiquitinate target proteins / DAP12 signaling / negative regulation of neuron projection development / MHC class II protein complex binding / late endosome membrane / T cell receptor signaling pathway / iron ion transport / ER-Phagosome pathway / early endosome membrane / antibacterial humoral response / T cell differentiation in thymus / protein refolding / protein homotetramerization / intracellular iron ion homeostasis / amyloid fibril formation / learning or memory / defense response to Gram-positive bacterium / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / lysosomal membrane / external side of plasma membrane / Golgi membrane / innate immune response / focal adhesion / signaling receptor binding / Neutrophil degranulation / endoplasmic reticulum membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / structural molecule activity / Golgi apparatus / cell surface / endoplasmic reticulum
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 classes I/II-like antigen recognition protein ...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 / Immunoglobulins / Immunoglobulin-like fold / Immunoglobulin-like / Sandwich / 2-Layer Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
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)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.15 Å
AuthorsSliz, P. / Michielin, O. / Karplus, M. / Romero, P. / Wiley, D.
CitationJournal: J.Immunol. / Year: 2001
Title: Crystal structures of two closely related but antigenically distinct HLA-A2/melanocyte-melanoma tumor-antigen peptide complexes.
Authors: Sliz, P. / Michielin, O. / Cerottini, J.C. / Luescher, I. / Romero, P. / Karplus, M. / Wiley, D.C.
History
DepositionJun 28, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 14, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details

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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
C: nonameric peptide ligand from the MART-1/Melan-A


Theoretical massNumber of molelcules
Total (without water)44,5903
Polymers44,5903
Non-polymers00
Water4,756264
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4210 Å2
ΔGint-20 kcal/mol
Surface area18480 Å2
MethodPISA
Unit cell
Length a, b, c (Å)49.190, 74.470, 122.290
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Cell settingorthorhombic
Space group name H-MP212121

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Components

#1: Protein HLA CLASS I HISTOCOMPATIBILITY ANTIGEN, A-2 ALPHA CHAIN / HLA-A2*0201 / MHC class I histocompatibility antigen HLA-A2 alpha chain / MHC class I antigen / ...HLA-A2*0201 / MHC class I histocompatibility antigen HLA-A2 alpha chain / MHC class I antigen / lymphocyte antigen / MHC class I HLA-A


Mass: 31854.203 Da / Num. of mol.: 1 / Fragment: HEAVY CHAIN
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: UniProt: P01892, UniProt: P04439*PLUS
#2: Protein beta-2-microglobulin / HLA-A2*0201


Mass: 11879.356 Da / Num. of mol.: 1
Fragment: BETA-CHAIN OF MAJOR HISTOCOMPATIBILITY COMPLEX CLASS I MOLECULES
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: UniProt: P61769
#3: Protein/peptide nonameric peptide ligand from the MART-1/Melan-A


Mass: 856.062 Da / Num. of mol.: 1 / Mutation: A28L / Source method: obtained synthetically / Details: Standard Solid-Phase Peptide Synthesis
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 264 / Source method: isolated from a natural source / Formula: H2O

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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: 2.51 Å3/Da / Density % sol: 51.01 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 16% PEG, 25 mM MES, 0.10% NaN3, pH 6.5, VAPOR DIFFUSION, HANGING DROP, at 293K
Crystal grow
*PLUS
Temperature: 20 ℃
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
110 mg/mlprotein1drop
225 mMMES1drop
316 %PEG60001reservoir
425 mMMES1reservoir
50.10 %1reservoirNaN3

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 14-BM-C / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Mar 26, 2000 / Details: bent conical Si-mirror (Rh coating)
RadiationMonochromator: bent cylindrical Ge(111) monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.15→30 Å / Num. all: 25511 / Num. obs: 25511 / % possible obs: 99 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 7.4 % / Biso Wilson estimate: 17.3 Å2 / Rmerge(I) obs: 0.039 / Net I/σ(I): 36
Reflection shellResolution: 2.15→2.25 Å / Redundancy: 6.2 % / Rmerge(I) obs: 0.124 / Mean I/σ(I) obs: 8.2 / Num. unique all: 3085 / % possible all: 96.4
Reflection
*PLUS
Lowest resolution: 30 Å / Num. measured all: 190647
Reflection shell
*PLUS
% possible obs: 96.4 % / Num. unique obs: 3085 / Num. measured obs: 19192

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Processing

Software
NameVersionClassification
SCALEPACKdata scaling
MOLREPphasing
CNS0.9refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1DUZ (peptide removed)

1duz


Resolution: 2.15→29.69 Å / Rfactor Rfree error: 0.005 / Data cutoff high absF: 1503724.59 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.252 2472 9.9 %RANDOM
Rwork0.21 ---
obs0.21 25064 99.6 %-
all-25158 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 50.04 Å2 / ksol: 0.3835 e/Å3
Displacement parametersBiso mean: 30.8 Å2
Baniso -1Baniso -2Baniso -3
1-3.08 Å20 Å20 Å2
2--0.21 Å20 Å2
3----3.3 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.31 Å0.24 Å
Luzzati d res low-5 Å
Luzzati sigma a0.22 Å0.14 Å
Refinement stepCycle: LAST / Resolution: 2.15→29.69 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3127 0 0 264 3391
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.3
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d24.9
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.69
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it2.061.5
X-RAY DIFFRACTIONc_mcangle_it2.952
X-RAY DIFFRACTIONc_scbond_it3.272
X-RAY DIFFRACTIONc_scangle_it4.562.5
LS refinement shellResolution: 2.15→2.28 Å / Rfactor Rfree error: 0.014 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.282 394 9.6 %
Rwork0.228 3705 -
obs--99.6 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER.PARAMWATER.TOP
Software
*PLUS
Name: CNS / Version: 0.9 / Classification: refinement
Refinement
*PLUS
σ(F): 0 / % reflection Rfree: 9.9 % / Rfactor obs: 0.21 / Rfactor Rwork: 0.21
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 30.8 Å2
Refine LS restraints
*PLUS
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_angle_deg1.3
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg24.9
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.69
X-RAY DIFFRACTIONc_mcbond_it1.5
X-RAY DIFFRACTIONc_scbond_it2
X-RAY DIFFRACTIONc_mcangle_it2
X-RAY DIFFRACTIONc_scangle_it2.5
LS refinement shell
*PLUS
Rfactor Rfree: 0.282 / % reflection Rfree: 9.6 % / Rfactor Rwork: 0.228

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