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Open data
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Basic information
Entry | Database: PDB / ID: 3s5l | ||||||
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Title | Crystal structure of CD4 mutant bound to HLA-DR1 | ||||||
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![]() | IMMUNE SYSTEM / protein-protein complex / co-receptor | ||||||
Function / homology | ![]() regulation of interleukin-4 production / helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / regulation of interleukin-10 production / maintenance of protein location in cell / myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / autolysosome membrane / regulation of T-helper cell differentiation ...regulation of interleukin-4 production / helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / regulation of interleukin-10 production / maintenance of protein location in cell / myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / autolysosome membrane / regulation of T-helper cell differentiation / T cell selection / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / MHC class II receptor activity / positive regulation of CD4-positive, alpha-beta T cell activation / MHC class II protein binding / antigen processing and presentation of peptide or polysaccharide antigen via MHC class II / positive regulation of T cell mediated immune response to tumor cell / positive regulation of kinase activity / positive regulation of memory T cell differentiation / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / CD4 receptor binding / positive regulation of monocyte differentiation / inflammatory response to antigenic stimulus / Nef Mediated CD4 Down-regulation / Alpha-defensins / regulation of T cell activation / Other interleukin signaling / intermediate filament / extracellular matrix structural constituent / T-helper 1 type immune response / T cell receptor complex / transport vesicle membrane / enzyme-linked receptor protein signaling pathway / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / polysaccharide binding / negative regulation of type II interferon production / humoral immune response / macrophage differentiation / positive regulation of insulin secretion involved in cellular response to glucose stimulus / regulation of calcium ion transport / Generation of second messenger molecules / T cell differentiation / immunological synapse / Co-inhibition by PD-1 / epidermis development / positive regulation of protein kinase activity / Binding and entry of HIV virion / detection of bacterium / T cell receptor binding / coreceptor activity / negative regulation of T cell proliferation / MHC class II antigen presentation / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / viral budding from plasma membrane / cell surface receptor protein tyrosine kinase signaling pathway / protein tyrosine kinase binding / trans-Golgi network membrane / lumenal side of endoplasmic reticulum membrane / protein tetramerization / Vpu mediated degradation of CD4 / peptide antigen assembly with MHC class II protein complex / negative regulation of inflammatory response to antigenic stimulus / MHC class II protein complex / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / ER to Golgi transport vesicle membrane / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / peptide antigen binding / structural constituent of cytoskeleton / positive regulation of T cell mediated cytotoxicity / positive regulation of T cell activation / cognition / Interferon gamma signaling / MHC class II protein complex binding / endocytic vesicle membrane / late endosome membrane / transmembrane signaling receptor activity / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / T cell receptor signaling pathway / signaling receptor activity / Clathrin-mediated endocytosis / positive regulation of protein phosphorylation / virus receptor activity / early endosome membrane / defense response to Gram-negative bacterium / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of canonical NF-kappaB signal transduction / positive regulation of viral entry into host cell / early endosome / lysosome / cell surface receptor signaling pathway / positive regulation of ERK1 and ERK2 cascade / positive regulation of MAPK cascade / cell adhesion Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Li, Y. | ||||||
![]() | ![]() Title: Affinity maturation of human CD4 by yeast surface display and crystal structure of a CD4-HLA-DR1 complex. Authors: Wang, X.X. / Li, Y. / Yin, Y. / Mo, M. / Wang, Q. / Gao, W. / Wang, L. / Mariuzza, R.A. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 239.5 KB | Display | ![]() |
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PDB format | ![]() | 190.5 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 508.1 KB | Display | ![]() |
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Full document | ![]() | 536.9 KB | Display | |
Data in XML | ![]() | 45.1 KB | Display | |
Data in CIF | ![]() | 62.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3s4sC ![]() 1g9mS ![]() 3l6fS C: citing same article ( S: Starting model for refinement |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
-HLA class II histocompatibility ... , 2 types, 4 molecules ADBE
#1: Protein | Mass: 21145.887 Da / Num. of mol.: 2 / Fragment: MHC class II a chain Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 22456.133 Da / Num. of mol.: 2 / Fragment: MHC class II b chain Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Protein/peptide / Protein , 2 types, 4 molecules CFGH
#3: Protein/peptide | Mass: 1506.807 Da / Num. of mol.: 2 / Fragment: HA peptide / Source method: obtained synthetically / Details: Chemical synthesis / Source: (synth.) ![]() #4: Protein | Mass: 21372.283 Da / Num. of mol.: 2 / Fragment: CD4 / Mutation: Q40Y, T45W, S60R, D63R Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Non-polymers , 2 types, 278 molecules 


#5: Chemical | ChemComp-GOL / #6: Water | ChemComp-HOH / | |
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-Details
Has protein modification | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.91 Å3/Da / Density % sol: 57.78 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: PEG 8000, (NH4)SO4, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: SIEMENS-NICOLET / Detector: CCD / Date: Jan 1, 2011 |
Radiation | Monochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.502 Å / Relative weight: 1 |
Reflection | Resolution: 2.1→50 Å / Num. obs: 91276 / % possible obs: 99.9 % / Redundancy: 14.4 % / Rmerge(I) obs: 0.069 / Net I/σ(I): 23.4 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1G9M and 3L6F Resolution: 2.1→50 Å
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Refinement step | Cycle: LAST / Resolution: 2.1→50 Å
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