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- PDB-3mrn: Crystal Structure of MHC class I HLA-A2 molecule complexed with H... -

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Basic information

Entry
Database: PDB / ID: 3mrn
TitleCrystal Structure of MHC class I HLA-A2 molecule complexed with HCV NS4b-1807-1816 decapeptide
Components
  • 10-meric peptide from Genome polyprotein
  • Beta-2-microglobulin
  • HLA class I histocompatibility antigen, A-2 alpha chain
KeywordsIMMUNE SYSTEM / MHC class I / HLA / IMMUNE RESPONSE / DECAPEPTIDE / VIRAL PEPTIDE / HEPATITIS C VIRUS / NS4B PROTEIN
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 / host cell lipid droplet / symbiont-mediated suppression of host TRAF-mediated signal transduction / symbiont-mediated transformation of host cell ...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 / host cell lipid droplet / symbiont-mediated suppression of host TRAF-mediated signal transduction / symbiont-mediated transformation of host cell / CD8 receptor binding / antigen processing and presentation of exogenous peptide antigen via MHC class I / beta-2-microglobulin binding / symbiont-mediated perturbation of host cell cycle G1/S transition checkpoint / 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 / host cell mitochondrion / detection of bacterium / T cell receptor binding / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / ribonucleoside triphosphate phosphatase activity / : / : / negative regulation of receptor binding / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / 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 / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / cellular response to iron(III) ion / 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 / 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 / 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 / positive regulation of T cell mediated cytotoxicity / cellular response to nicotine / multicellular organismal-level iron ion homeostasis / positive regulation of protein binding / specific granule lumen / positive regulation of type II interferon production / phagocytic vesicle membrane / recycling endosome membrane / positive regulation of cellular senescence / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / Interferon gamma signaling / negative regulation of epithelial cell proliferation / MHC class II protein complex binding / Modulation by Mtb of host immune system / Interferon alpha/beta signaling / late endosome membrane / sensory perception of smell / antibacterial humoral response / tertiary granule lumen / DAP12 signaling / T cell differentiation in thymus / E3 ubiquitin ligases ubiquitinate target proteins / T cell receptor signaling pathway / negative regulation of neuron projection development / iron ion transport / ER-Phagosome pathway / channel activity / protein refolding / viral nucleocapsid / early endosome membrane / monoatomic ion transmembrane transport / protein homotetramerization / amyloid fibril formation / intracellular iron ion homeostasis / learning or memory / RNA helicase activity / host cell perinuclear region of cytoplasm / defense response to Gram-positive bacterium / host cell endoplasmic reticulum membrane / immune response / symbiont-mediated suppression of host type I interferon-mediated signaling pathway
Similarity search - Function
Hepatitus C virus, Non-structural 5a protein, C-terminal / Hepatitis C virus NS5A, 1B domain superfamily / Hepatitis C virus non-structural protein NS2, C-terminal domain / Hepatitis C virus non-structural protein NS2, N-terminal domain / Hepatitis C virus non-structural protein NS2 / HCV NS5a protein C-terminal region / Hepatitis C virus, Non-structural protein NS4b / Hepatitis C virus, Core protein, N-terminal / Hepatitis C virus core protein, chain A superfamily / : ...Hepatitus C virus, Non-structural 5a protein, C-terminal / Hepatitis C virus NS5A, 1B domain superfamily / Hepatitis C virus non-structural protein NS2, C-terminal domain / Hepatitis C virus non-structural protein NS2, N-terminal domain / Hepatitis C virus non-structural protein NS2 / HCV NS5a protein C-terminal region / Hepatitis C virus, Non-structural protein NS4b / Hepatitis C virus, Core protein, N-terminal / Hepatitis C virus core protein, chain A superfamily / : / Hepatitis C virus non-structural protein NS4b / Hepatitis C virus capsid protein / Hepatitis C virus, Non-structural protein NS2 / Hepatitis C virus, Non-structural 5a protein / Hepatitis C virus, Non-structural 5a protein, domain 1a / Hepatitis C virus non-structural 5a, 1B domain / NS5A domain 1a superfamily / : / Hepatitis C virus non-structural 5a protein membrane anchor / Hepatitis C virus non-structural 5a zinc finger domain / Hepatitis C virus non-structural 5a domain 1b / NS3 RNA helicase, C-terminal helical domain / Hepacivirus nonstructural protein 2 (NS2) protease domain profile. / Hepatitis C virus, Non-structural protein NS4a / Hepatitis C virus non-structural protein NS4a / Hepatitis C virus, Core protein, C-terminal / Hepatitis C virus core protein / Hepatitis C virus, Non-structural protein E2/NS1 / Hepatitis C virus non-structural protein E2/NS1 / Hepatitis C virus, Envelope glycoprotein E1 / Hepatitis C virus envelope glycoprotein E1 / RNA dependent RNA polymerase, hepatitis C virus / Viral RNA dependent RNA polymerase / Hepatitis C virus, NS3 protease, Peptidase S29 / Hepatitis C virus NS3 protease / Hepacivirus/Pegivirus NS3 protease domain profile. / 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 / DEAD box, Flavivirus / Flavivirus DEAD domain / 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. / helicase superfamily c-terminal domain / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / Reverse transcriptase/Diguanylate cyclase domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / Peptidase S1, PA clan, chymotrypsin-like fold / Immunoglobulin-like fold / Peptidase S1, PA clan / Immunoglobulins / DNA/RNA polymerase superfamily / Immunoglobulin-like / Sandwich / P-loop containing nucleoside triphosphate hydrolase / 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 / Genome polyprotein
Similarity search - Component
Biological speciesHomo sapiens (human)
hepatitis C virus HCV
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.3 Å
AuthorsGras, S. / Chouquet, A. / Echasserieau, K. / Saulquin, X. / Bonneville, M. / Housset, D.
CitationJournal: To be Published
Title: Crystal Structure of MHC class I HLA-A2 molecule complexed with HCV NS4b-1807-1816 decapeptide
Authors: Gras, S. / Chouquet, A. / Echasserieau, K. / Saulquin, X. / Bonneville, M. / Housset, D.
History
DepositionApr 29, 2010Deposition site: RCSB / Processing site: PDBJ
Revision 1.0May 25, 2011Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Nov 1, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details
Revision 1.3Oct 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: HLA class I histocompatibility antigen, A-2 alpha chain
B: Beta-2-microglobulin
P: 10-meric peptide from Genome polyprotein


Theoretical massNumber of molelcules
Total (without water)47,0193
Polymers47,0193
Non-polymers00
Water1,76598
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4360 Å2
ΔGint-21 kcal/mol
Surface area18890 Å2
MethodPISA
Unit cell
Length a, b, c (Å)97.943, 37.935, 119.858
Angle α, β, γ (deg.)90.000, 90.890, 90.000
Int Tables number5
Space group name H-MC121

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Components

#1: Protein HLA class I histocompatibility antigen, A-2 alpha chain / MHC class I antigen A*2


Mass: 34008.711 Da / Num. of mol.: 1 / Fragment: HLA-A*0201 alpha chain, UNP resiude 25-300 / Mutation: A245V
Source method: isolated from a genetically manipulated source
Details: C-terminal biotin acceptor peptide sequence tag (GSLHHILDAQKMVWNHR)
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA, HLA-A, HLAA / Plasmid: pHN1 / Production host: Escherichia coli (E. coli) / Strain (production host): X90F LAQQ1 / References: UniProt: P01892, UniProt: P04439*PLUS
#2: Protein Beta-2-microglobulin / Beta-2-microglobulin form pI 5.3


Mass: 11879.356 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: B2M, BETA-2 MICROGLUBULIN, CDABP0092, HDCMA22P / Plasmid: pHN1 / Production host: Escherichia coli (E. coli) / Strain (production host): X90F LAQQ1 / References: UniProt: P61769
#3: Protein/peptide 10-meric peptide from Genome polyprotein


Mass: 1131.367 Da / Num. of mol.: 1 / Fragment: NS4b protein fragment, UNP residues 1807-1816 / Source method: obtained synthetically / Details: chemical synthesis / Source: (synth.) hepatitis C virus HCV / References: UniProt: Q9DIT6
#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 / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.37 Å3/Da / Density % sol: 48.05 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 18% PEG 6000, 0.1M NaCitrate, 0.1M NaCl, 5mg/ml protein conc., pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-2 / Wavelength: 0.933 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Feb 25, 2006
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.933 Å / Relative weight: 1
ReflectionResolution: 2.3→25 Å / Num. obs: 17510 / % possible obs: 87.3 % / Observed criterion σ(I): -3 / Redundancy: 3.81 % / Biso Wilson estimate: 34.54 Å2 / Rmerge(I) obs: 0.123 / Net I/σ(I): 7.54
Reflection shell

Diffraction-ID: 1

Resolution (Å)Highest resolution (Å)Rmerge(I) obsMean I/σ(I) obsNum. measured obsNum. unique obs% possible all
2.3-2.380.3682.84270124263.7
2.38-2.470.3353.25719153982.7
2.47-2.570.3223.56411165993.1
2.57-2.690.2624.36692171893.2
2.69-2.820.22455893151693.5
2.82-2.970.1915.85610143492
2.97-3.150.1547.15512140492.2
3.15-3.370.1299.24937127891.3
3.37-3.640.11410.64541118989.9
3.64-3.980.098123986105488.3
3.98-4.450.09513.1366697686.9
4.45-5.140.08513.8323186689.1
5.14-6.30.0813.7288774787.6
6.3-8.910.06214.2224457186.1
8.910.04714.2113731782.1

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Processing

Software
NameVersionClassificationNB
XSCALEdata scaling
REFMAC5.5.0044refinement
PDB_EXTRACT3.1data extraction
XDSdata reduction
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3GSO

3gso


Resolution: 2.3→15 Å / Cor.coef. Fo:Fc: 0.913 / Cor.coef. Fo:Fc free: 0.854 / Occupancy max: 1 / Occupancy min: 0.5 / SU B: 6.132 / SU ML: 0.152 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.35 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: U VALUES: REFINED INDIVIDUALLY; 10 to 20 refinement cycles with all observed reflections were performed at the end of the refinement procedure, in order to obtain the most accurate model. ...Details: U VALUES: REFINED INDIVIDUALLY; 10 to 20 refinement cycles with all observed reflections were performed at the end of the refinement procedure, in order to obtain the most accurate model. Rwork and Rfree values corresponds to the coordinates just before these very last cycles.
RfactorNum. reflection% reflectionSelection details
Rfree0.298 1715 10.2 %RANDOM
Rwork0.214 ---
obs0.222 16813 84.27 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso max: 71.98 Å2 / Biso mean: 31.425 Å2 / Biso min: 8.23 Å2
Baniso -1Baniso -2Baniso -3
1--0.61 Å20 Å2-0.25 Å2
2--1.04 Å2-0 Å2
3----0.44 Å2
Refinement stepCycle: LAST / Resolution: 2.3→15 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3157 0 0 98 3255
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.0213276
X-RAY DIFFRACTIONr_angle_refined_deg1.1721.9214450
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.1525387
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.95323.068176
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.86915534
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.211529
X-RAY DIFFRACTIONr_chiral_restr0.080.2452
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.0212583
X-RAY DIFFRACTIONr_mcbond_it0.87421925
X-RAY DIFFRACTIONr_mcangle_it1.56733106
X-RAY DIFFRACTIONr_scbond_it1.27931351
X-RAY DIFFRACTIONr_scangle_it1.95441343
LS refinement shellResolution: 2.301→2.359 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.342 78 -
Rwork0.274 719 -
all-797 -
obs--54.44 %

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