+Open data
-Basic information
Entry | Database: PDB / ID: 1iea | ||||||
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Title | HISTOCOMPATIBILITY ANTIGEN | ||||||
Components | (MHC CLASS II I-EK) x 2 | ||||||
Keywords | HISTOCOMPATIBILITY ANTIGEN | ||||||
Function / homology | Function and homology information Phosphorylation of CD3 and TCR zeta chains / Translocation of ZAP-70 to Immunological synapse / PD-1 signaling / Generation of second messenger molecules / Downstream TCR signaling / myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / regulation of T-helper cell differentiation / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / positive regulation of CD4-positive, alpha-beta T cell activation ...Phosphorylation of CD3 and TCR zeta chains / Translocation of ZAP-70 to Immunological synapse / PD-1 signaling / Generation of second messenger molecules / Downstream TCR signaling / myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / regulation of T-helper cell differentiation / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / positive regulation of CD4-positive, alpha-beta T cell activation / antigen processing and presentation of peptide or polysaccharide antigen via MHC class II / MHC class II antigen presentation / positive regulation of memory T cell differentiation / polysaccharide binding / immunoglobulin mediated immune response / immunological synapse / T cell receptor binding / cognition / positive regulation of T cell mediated cytotoxicity / peptide antigen assembly with MHC class II protein complex / MHC class II protein complex / peptide antigen binding / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / positive regulation of T cell activation / MHC class II protein complex binding / late endosome membrane / adaptive immune response / lysosome / lysosomal membrane / external side of plasma membrane / cell surface / plasma membrane Similarity search - Function | ||||||
Biological species | Mus musculus (house mouse) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.3 Å | ||||||
Authors | Fremont, D.H. / Hendrickson, W.A. / Marrack, P. / Kappler, J. | ||||||
Citation | Journal: Science / Year: 1996 Title: Structures of an MHC class II molecule with covalently bound single peptides. Authors: Fremont, D.H. / Hendrickson, W.A. / Marrack, P. / Kappler, J. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1iea.cif.gz | 173.3 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1iea.ent.gz | 140.9 KB | Display | PDB format |
PDBx/mmJSON format | 1iea.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ie/1iea ftp://data.pdbj.org/pub/pdb/validation_reports/ie/1iea | HTTPS FTP |
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-Related structure data
Related structure data | 1iebC 1dlhS S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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2 |
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Unit cell |
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-Components
#1: Protein | Mass: 22324.008 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: WITH COVALENTLY BOUND HB PEPTIDE / Source: (gene. exp.) Mus musculus (house mouse) / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P01904 #2: Protein | Mass: 25892.832 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: WITH COVALENTLY BOUND HB PEPTIDE / Source: (gene. exp.) Mus musculus (house mouse) / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q31163 #3: Sugar | ChemComp-NAG / #4: Water | ChemComp-HOH / | Compound details | THIS ENTRY CONTAINS COORDINATES FOR THE EXTRACELLULAR DOMAINS OF THE MURINE MHC CLASS II MOLECULE I- ...THIS ENTRY CONTAINS COORDINATE | Sequence details | CHAINS B AND D CONTAIN THE HB PEPTIDE AND LINKER REGIONS. THE BETA CHAIN AMINO TERMINUS, PEPTIDE P1 ...CHAINS B AND D CONTAIN THE HB PEPTIDE AND LINKER REGIONS. THE BETA CHAIN AMINO TERMINUS, PEPTIDE P1 - P9 AND LINKER ARE NOTED WITH THE INSERTION CODES N, P, AND L. | |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 2 |
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-Sample preparation
Crystal | Density Matthews: 2.54 Å3/Da / Density % sol: 55 % | ||||||||||||||||||||||||||||||
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Crystal grow | pH: 5.2 Details: 8% PEG 4000, 2% EG, 200MM A.S, 100MM CITRATE PH 5.2 | ||||||||||||||||||||||||||||||
Crystal grow | *PLUS Method: unknown / PH range low: 5.6 / PH range high: 5.2 | ||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 110 K | |||||||||
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Diffraction source | Source: SYNCHROTRON / Site: NSLS / Beamline: X4A / Wavelength: 0.9879, 1.0070 | |||||||||
Detector | Type: FUJI / Detector: IMAGE PLATE | |||||||||
Radiation | Scattering type: x-ray | |||||||||
Radiation wavelength |
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Reflection | Resolution: 2.3→20 Å / Num. obs: 38809 / % possible obs: 89.2 % / Redundancy: 4.35 % / Biso Wilson estimate: 34.2 Å2 / Rsym value: 0.075 | |||||||||
Reflection | *PLUS Num. measured all: 169034 / Rmerge(I) obs: 0.075 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: PDB ENTRY 1DLH Resolution: 2.3→6 Å / Rfactor Rfree error: 0.006 / Data cutoff high absF: 100000 / Data cutoff low absF: 0.01 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
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Displacement parameters | Biso mean: 32.3 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2.3→6 Å
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Refine LS restraints |
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Refine LS restraints NCS | NCS model details: RESTRAINED | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
LS refinement shell | Resolution: 2.3→2.44 Å / Rfactor Rfree error: 0.023 / Total num. of bins used: 6
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Xplor file |
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Software | *PLUS Name: X-PLOR / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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