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- PDB-2hla: SPECIFICITY POCKETS FOR THE SIDE CHAINS OF PEPTIDE ANTIGENS IN HL... -

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Basic information

Entry
Database: PDB / ID: 2hla
TitleSPECIFICITY POCKETS FOR THE SIDE CHAINS OF PEPTIDE ANTIGENS IN HLA-AW68
Components
  • BETA 2-MICROGLOBULIN
  • CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-Aw68)
KeywordsHISTOCOMPATIBILITY ANTIGEN
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 I via ER pathway, TAP-independent / antigen processing and presentation of endogenous peptide antigen via MHC class Ib / 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 / lumenal side of endoplasmic reticulum membrane / 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 / MHC class II protein complex / negative regulation of forebrain neuron differentiation / 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 / positive regulation of T cell activation / peptide antigen binding / positive regulation of receptor-mediated endocytosis / negative regulation of neurogenesis / 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 / antibacterial humoral response / positive regulation of cellular senescence / tertiary granule lumen / DAP12 signaling / T cell differentiation in thymus / T cell receptor signaling pathway / E3 ubiquitin ligases ubiquitinate target proteins / negative regulation of neuron projection development / 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 / lysosomal membrane / innate immune response / external side of plasma 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
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 / Resolution: 2.6 Å
AuthorsGarrett, T.P.J. / Saper, M.A. / Wiley, D.C.
Citation
Journal: Nature / Year: 1989
Title: Specificity pockets for the side chains of peptide antigens in HLA-Aw68.
Authors: Garrett, T.P. / Saper, M.A. / Bjorkman, P.J. / Strominger, J.L. / Wiley, D.C.
#2: Journal: Nature / Year: 1987
Title: Structure of the Human Class I Histocompatibility Antigen, Hla-A2
Authors: Bjorkman, P.J. / Saper, M.A. / Samraoui, B. / Bennett, W.S. / Strominger, J.L. / Wiley, D.C.
#3: Journal: Nature / Year: 1987
Title: The Foreign Antigen Binding Site and T Cell Recognition Regions of Class I Histocompatibility Antigens
Authors: Bjorkman, P.J. / Saper, M.A. / Samraoui, B. / Bennett, W.S. / Strominger, J.L. / Wiley, D.C.
#4: Journal: J.Mol.Biol. / Year: 1985
Title: Crystallization and X-Ray Diffraction Studies on the Histocompatibility Antigens Hla-A2 and Hla-A28 from Human Cell Membranes
Authors: Bjorkman, P.J. / Strominger, J.L. / Wiley, D.C.
#1: Journal: To be Published
Authors: Garrett, T.P.J. / Saper, M.A. / Wiley, D.C.
History
DepositionOct 5, 1989Processing site: BNL
Revision 1.0Apr 15, 1990Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 29, 2017Group: Derived calculations / Other
Category: pdbx_database_status / struct_conf / struct_conf_type
Item: _pdbx_database_status.process_site
Revision 1.4Oct 23, 2024Group: Data collection / Database references / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_entry_details / pdbx_modification_feature
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_entry_details.has_protein_modification
Remark 700SHEET SHEET 2 HAS A BETA BULGE AT RESIDUE SER A 207 AND SHEET 4 HAS A BETA BULGE AT RESIDUE GLY B ...SHEET SHEET 2 HAS A BETA BULGE AT RESIDUE SER A 207 AND SHEET 4 HAS A BETA BULGE AT RESIDUE GLY B 29. ADDITIONALLY, IN EACH OF SHEETS 2 AND 4, STRAND 4 CONTAINS AN EXTRA RESIDUE WHICH DISRUPTS THE HYDROGEN BONDING PATTERN. THIS IS REPRESENTED BY PRESENTING THE SHEETS TWICE (DESIGNATED SHEETS S2A, S2B AND S4A, S4B RESPECTIVELY) WHERE THE TWO REPRESENTATIONS DIFFER IN THEIR FIRST AND LAST STRANDS.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-Aw68)
B: BETA 2-MICROGLOBULIN


Theoretical massNumber of molelcules
Total (without water)42,8992
Polymers42,8992
Non-polymers00
Water18010
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2420 Å2
ΔGint-6 kcal/mol
Surface area19320 Å2
MethodPISA
Unit cell
Length a, b, c (Å)60.000, 80.660, 113.000
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Atom site foot note1: FOR RESIDUES GLY A 1, LYS A 268, PRO A 269 AND LEU A 270 THERE IS NO INTERPRETABLE DENSITY FOR ATOMS WITH AN OCCUPANCY OF 0.01.
2: RESIDUES PRO A 210 AND PRO B 32 ARE CIS PROLINES.

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Components

#1: Protein CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-Aw68)


Mass: 31151.334 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / References: UniProt: P01891, UniProt: P04439*PLUS
#2: Protein BETA 2-MICROGLOBULIN


Mass: 11748.160 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / References: UniProt: P61769
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 10 / Source method: isolated from a natural source / Formula: H2O
Compound detailsRESIDUE ASN A 86 IS THE CARBOHYDRATE ATTACHMENT SITE. NO CARBOHYDRATE COORDINATES HAVE BEEN ...RESIDUE ASN A 86 IS THE CARBOHYDRATE ATTACHMENT SITE. NO CARBOHYDRATE COORDINATES HAVE BEEN INCLUDED IN THIS ENTRY. SECONDARY STRUCTURE SPECIFICATIONS WERE MADE BY USE OF THE PROCEDURE OF W. KABSCH AND C. SANDER (PROGRAM *DSSP*). THE HYDROGEN BONDING SCHEME WAS USED TO RESOLVE ANY AMBIGUOUS ASSIGNMENTS. TURNS HAVE BEEN IDENTIFIED USING THE FOLLOWING CRITERIA. 1. O(I) - N(I+3) HYDROGEN BOND LENGTH IS LESS THAN OR EQUAL TO 3.2 ANGSTROMS. 2. CA(I) - CA (I+3) DISTANCE IS LESS THAN OR EQUAL TO 5.9 ANGSTROMS. THE FRAGMENT CRYSTALLIZED WAS THE EXTRACELLULAR PORTION OF THE PROTEIN CLEAVED FROM THE CELL MEMBRANE WITH PAPAIN.
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 3.19 Å3/Da / Density % sol: 61.39 %
Crystal grow
*PLUS
Method: vapor diffusion / Details: referred to J.Mol.Biol. 186.205-210 1985 / PH range low: 6.5 / PH range high: 6.2
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
115 mg/mlprotein1drop
225 mM2-(N-morpholino)ethanesulfonic acid1dropcan be replaced with 100mM imidazole
315 %(w/v)PEG60001reservoir

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Processing

SoftwareName: X-PLOR / Classification: refinement
RefinementResolution: 2.6→6 Å / Rfactor Rwork: 0.173
Details: FOR RESIDUES GLY A 1, LYS A 268, PRO A 269 AND LEU A 270 THERE IS NO INTERPRETABLE DENSITY FOR ATOMS WITH AN OCCUPANCY OF 0.01.
Refinement stepCycle: LAST / Resolution: 2.6→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3023 0 0 10 3033
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.017
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg3.2
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Refinement
*PLUS
Highest resolution: 2.6 Å / Lowest resolution: 6 Å / σ(I): 1 / Rfactor obs: 0.173
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_d / Dev ideal: 3.2

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