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- PDB-1hhg: THE ANTIGENIC IDENTITY OF PEPTIDE(SLASH)MHC COMPLEXES: A COMPARIS... -

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Basic information

Entry
Database: PDB / ID: 1hhg
TitleTHE ANTIGENIC IDENTITY OF PEPTIDE(SLASH)MHC COMPLEXES: A COMPARISON OF THE CONFORMATION OF FIVE PEPTIDES PRESENTED BY HLA-A2
Components
  • BETA 2-MICROGLOBULIN
  • CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A*0201) (ALPHA CHAIN)
  • HIV-1 GP120 ENVELOPE PROTEIN (RESIDUES 195-207)
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 / 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 / Dectin-2 family / antigen processing and presentation of exogenous peptide antigen via MHC class I ...positive regulation of memory T cell activation / T cell mediated cytotoxicity directed against tumor cell target / 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 / Dectin-2 family / 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 plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / 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 / 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 / cellular response to iron ion / Endosomal/Vacuolar pathway / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / lumenal side of endoplasmic reticulum membrane / 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 / 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 / MHC class I protein complex / negative regulation of neurogenesis / positive regulation of receptor-mediated endocytosis / peptide antigen assembly with MHC class II protein complex / multicellular organismal-level iron ion homeostasis / MHC class II protein complex / cellular response to nicotine / positive regulation of T cell mediated cytotoxicity / specific granule lumen / positive regulation of type II interferon production / recycling endosome membrane / phagocytic vesicle membrane / positive regulation of cellular senescence / peptide antigen binding / antigen processing and presentation of exogenous peptide antigen via MHC class II / negative regulation of epithelial cell proliferation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / positive regulation of immune response / Interferon gamma signaling / positive regulation of T cell activation / Modulation by Mtb of host immune system / Interferon alpha/beta signaling / sensory perception of smell / negative regulation of neuron projection development / positive regulation of protein binding / tertiary granule lumen / DAP12 signaling / antibacterial humoral response / MHC class II protein complex binding / E3 ubiquitin ligases ubiquitinate target proteins / late endosome membrane / T cell receptor signaling pathway / iron ion transport / ER-Phagosome pathway / early endosome membrane / T cell differentiation in thymus / protein refolding / clathrin-dependent endocytosis of virus by host cell / protein homotetramerization / intracellular iron ion homeostasis / amyloid fibril formation / learning or memory / viral protein processing / defense response to Gram-positive bacterium / immune response / Amyloid fiber formation / endoplasmic reticulum lumen / Golgi membrane / external side of plasma membrane / lysosomal membrane / fusion of virus membrane with host plasma membrane / innate immune response / signaling receptor binding
Similarity search - Function
Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / 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 ...Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / 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 / Envelope glycoprotein gp160 / Beta-2-microglobulin
Similarity search - Component
Biological speciesHomo sapiens (human)
Human immunodeficiency virus 1
MethodX-RAY DIFFRACTION / Resolution: 2.6 Å
AuthorsMadden, D.R. / Garboczi, D.N. / Wiley, D.C.
Citation
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.
#1: 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.
#2: Journal: Cell(Cambridge,Mass.) / Year: 1992
Title: The Three-Dimensional Structure of Hla-B27 at 2.1 Angstroms Resolution Suggests a General Mechanism for Tight Peptide Binding to Mhc
Authors: Madden, D.R. / Gorga, J.C. / Strominger, J.L. / Wiley, D.C.
#3: 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.
#4: 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.
#5: 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.
#6: 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
DepositionJun 30, 1993Processing site: BNL
Revision 1.0Oct 31, 1993Provider: 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 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification
Remark 700SHEET SHEETS 2 AND 4 EACH HAVE ONE STRAND THAT IS BIFURCATED. THIS IS REPRESENTED BY PRESENTING THE ...SHEET SHEETS 2 AND 4 EACH HAVE ONE STRAND THAT IS BIFURCATED. THIS IS REPRESENTED BY PRESENTING THE SHEETS TWICE (DESIGNATED SHEETS SB1, SB2 AND SD1, SD2 RESPECTIVELY) WHERE THE TWO REPRESENTATIONS DIFFER IN THEIR LAST STRAND.

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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-A*0201) (ALPHA CHAIN)
B: BETA 2-MICROGLOBULIN
C: HIV-1 GP120 ENVELOPE PROTEIN (RESIDUES 195-207)
D: CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A*0201) (ALPHA CHAIN)
E: BETA 2-MICROGLOBULIN
F: HIV-1 GP120 ENVELOPE PROTEIN (RESIDUES 195-207)


Theoretical massNumber of molelcules
Total (without water)89,3176
Polymers89,3176
Non-polymers00
Water00
1
A: CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A*0201) (ALPHA CHAIN)
B: BETA 2-MICROGLOBULIN
C: HIV-1 GP120 ENVELOPE PROTEIN (RESIDUES 195-207)


Theoretical massNumber of molelcules
Total (without water)44,6593
Polymers44,6593
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4050 Å2
ΔGint-17 kcal/mol
Surface area18740 Å2
MethodPISA
2
D: CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A*0201) (ALPHA CHAIN)
E: BETA 2-MICROGLOBULIN
F: HIV-1 GP120 ENVELOPE PROTEIN (RESIDUES 195-207)


Theoretical massNumber of molelcules
Total (without water)44,6593
Polymers44,6593
Non-polymers00
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4000 Å2
ΔGint-17 kcal/mol
Surface area18640 Å2
MethodPISA
Unit cell
Length a, b, c (Å)62.700, 87.000, 79.400
Angle α, β, γ (deg.)90.00, 90.02, 90.00
Int Tables number4
Space group name H-MP1211
Atom site foot note1: SIDE CHAIN ATOMS OF A 54, A 177, A 255, B 58, D 54, D 86, D 89, D 177, D 255, E 58 ARE DISORDERED AND HAVE OCCUPANCIES EQUAL TO ZERO IN THIS ENTRY.
2: RESIDUES PRO A 210, PRO B 32, PRO D 210 AND PRO E 32 ARE CIS PROLINES.
3: ESCHERICHIA COLI EXPRESSED BETA-2 MICROGLOBULIN CONTAINS AN N-TERMINAL METHIONINE, PRESENTED HERE WITH RESIDUE NUMBER 0.
4: ELECTRON DENSITY NEAR SG ATOMS OF RESIDUES CYS C 5 AND CYS F 5 SUGGESTS THAT THESE PEPTIDE SIDE CHAINS MAY BE CHEMICALLY MODIFIED.

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Components

#1: Protein CLASS I HISTOCOMPATIBILITY ANTIGEN (HLA-A*0201) (ALPHA CHAIN)


Mass: 31854.203 Da / Num. of mol.: 2
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: P01892, UniProt: P04439*PLUS
#2: Protein BETA 2-MICROGLOBULIN


Mass: 11879.356 Da / Num. of mol.: 2
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 HIV-1 GP120 ENVELOPE PROTEIN (RESIDUES 195-207)


Mass: 925.016 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Genus: Lentivirus / References: UniProt: P04582
Compound detailsSECONDARY STRUCTURE SPECIFICATIONS WERE MADE BY USE OF THE PROCEDURE OF W. KABSCH AND C. SANDER ...SECONDARY STRUCTURE SPECIFICATIONS WERE MADE BY USE OF THE PROCEDURE OF W. KABSCH AND C. SANDER (PROGRAM *DSSP*).
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: 2.42 Å3/Da / Density % sol: 49.25 %
Crystal grow
*PLUS
pH: 6.5 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
113 %PEG60001reservoir
225 mMn-morpholinoethanesulfanolamine1reservoir
30.1 %sodium azide1reservoir

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementRfactor Rwork: 0.277 / Rfactor obs: 0.277 / Highest resolution: 2.6 Å
Refinement stepCycle: LAST / Highest resolution: 2.6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6294 0 0 0 6294
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.014
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 / Num. reflection obs: 21347 / Rfactor obs: 0.277
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_d / Dev ideal: 3.2

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