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- PDB-1tmc: THE THREE-DIMENSIONAL STRUCTURE OF A CLASS I MAJOR HISTOCOMPATIBI... -

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Basic information

Entry
Database: PDB / ID: 1tmc
TitleTHE THREE-DIMENSIONAL STRUCTURE OF A CLASS I MAJOR HISTOCOMPATIBILITY COMPLEX MOLECULE MISSING THE ALPHA3 DOMAIN OF THE HEAVY CHAIN
Components
  • BETA 2-MICROGLOBULIN
  • CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-AW68)
  • DECAMERIC PEPTIDE (EVAPPEYHRK)
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 / 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 / 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 / : / : / 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 / 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 / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / MHC class II protein complex / negative regulation of forebrain neuron differentiation / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of erythrocyte differentiation / regulation of iron ion transport / MHC class I peptide loading complex / response to molecule of bacterial origin / 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 T cell mediated cytotoxicity / positive regulation of receptor-mediated endocytosis / multicellular organismal-level iron ion homeostasis / positive regulation of T cell activation / cellular response to nicotine / positive regulation of type II interferon production / specific granule lumen / recycling endosome membrane / phagocytic vesicle membrane / positive regulation of cellular senescence / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / negative regulation of epithelial cell proliferation / Interferon gamma signaling / MHC class II protein complex binding / Interferon alpha/beta signaling / positive regulation of protein binding / antibacterial humoral response / Modulation by Mtb of host immune system / late endosome membrane / sensory perception of smell / tertiary granule lumen / DAP12 signaling / E3 ubiquitin ligases ubiquitinate target proteins / T cell receptor signaling pathway / negative regulation of neuron projection development / iron ion transport / T cell differentiation in thymus / 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 / Amyloid fiber formation / endoplasmic reticulum lumen / external side of plasma membrane / Golgi membrane / signaling receptor binding / lysosomal membrane / innate immune response / 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
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: 2.3 Å
AuthorsCollins, E.J. / Garboczi, D.N. / Karpusas, M.N. / Wiley, D.C.
Citation
Journal: Proc.Natl.Acad.Sci.USA / Year: 1995
Title: The three-dimensional structure of a class I major histocompatibility complex molecule missing the alpha 3 domain of the heavy chain.
Authors: Collins, E.J. / Garboczi, D.N. / Karpusas, M.N. / Wiley, D.C.
#1: Journal: J.Mol.Biol. / Year: 1994
Title: Five Viral Peptide-Hla-A2 Co-Crystals: Simultaneous Space Group Determination and X-Ray Data Collection
Authors: Garboczi, D.N. / Madden, D.R. / Wiley, D.C.
#2: Journal: Cell(Cambridge,Mass.) / Year: 1993
Title: The Antigenic Identity of Peptide-Mhc Complexes: A Comparison of the Conformations of Five Viral Peptides Presented by Hla-A2
Authors: Madden, D.R. / Garboczi, D.N. / Wiley, D.C.
#3: Journal: Proc.Natl.Acad.Sci.USA / Year: 1993
Title: Comparison of the P2 Specificity Pocket in Three Human Histocompatibility Antigens: Hla-A(Asterisk)6801,Hla-A(Asterisk)0201, and Hla-B(Asterisk)2705
Authors: Guo, H.-C. / Madden, D.R. / Silver, M.L. / Jardetzky, T.S. / Gorga, J.C. / Strominger, J.L. / Wiley, D.C.
#4: Journal: Nature / Year: 1992
Title: Different Length Peptides Bind to Hla-Aw68 Similarly at Their Ends But Bulge Out in the Middle
Authors: Guo, H.-C. / Jardetzky, T.S. / Garrett, T.P.J. / Lane, W.S. / Strominger, J.L. / Wiley, D.C.
#5: Journal: Proc.Natl.Acad.Sci.USA / Year: 1992
Title: Hla-A2-Peptide Complexes: Refolding and Crystallization of Molecules Expressed in Escherichia Coli and Complexed with Single Antigenic Peptides
Authors: Garboczi, D.N. / Hung, D.T. / Wiley, D.C.
#6: Journal: J.Mol.Biol. / Year: 1991
Title: Refined Structure of the Human Histocompatibility Antigen Hla-A2 at 2.6 Angstroms Resolution
Authors: Saper, M.A. / Bjorkman, P.J. / Wiley, D.C.
#7: 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.
#8: 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.
#9: 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.
History
DepositionDec 19, 1994Processing site: BNL
Revision 1.0Mar 31, 1995Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jun 5, 2024Group: Data collection / Database references / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.process_site
Revision 1.4Oct 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: CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-AW68)
B: BETA 2-MICROGLOBULIN
C: DECAMERIC PEPTIDE (EVAPPEYHRK)


Theoretical massNumber of molelcules
Total (without water)33,4233
Polymers33,4233
Non-polymers00
Water1,76598
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)48.230, 58.050, 109.530
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Atom site foot note1: CIS PROLINE - PRO B 32

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Components

#1: Protein CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-AW68)


Mass: 20315.336 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BETA-2-MICROGLOBULIN / Production host: Escherichia coli (E. coli) / References: UniProt: P01891, 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: BETA-2-MICROGLOBULIN / Production host: Escherichia coli (E. coli) / References: UniProt: P61769
#3: Protein/peptide DECAMERIC PEPTIDE (EVAPPEYHRK)


Mass: 1228.375 Da / Num. of mol.: 1 / Source method: obtained synthetically
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 98 / Source method: isolated from a natural source / Formula: H2O
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: 2.29 Å3/Da / Density % sol: 46.36 %
Crystal grow
*PLUS
pH: 6.5 / Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
120 mg/mlprotein1drop
225 mMMES1drop
310-20 %PEG80001reservoir
425 mMMES1reservoir

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 2.3 Å / Lowest resolution: 20 Å / % possible obs: 99 % / Rmerge(I) obs: 0.07
Reflection shell
*PLUS
Highest resolution: 2.3 Å / Lowest resolution: 2.39 Å / Rmerge(I) obs: 0.228

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementResolution: 2.3→6 Å / Rfactor Rwork: 0.207 / Rfactor obs: 0.207
Refinement stepCycle: LAST / Resolution: 2.3→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2341 0 0 98 2439
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.008
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_deg1.92
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
Num. reflection all: 12084 / σ(I): 3 / Rfactor all: 0.227 / Rfactor Rfree: 0.304
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_d / Dev ideal: 1.92

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