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- PDB-8i5e: Crystal structure of HLA-A*11:01 in complex with KRAS peptide (VV... -

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Basic information

Entry
Database: PDB / ID: 8i5e
TitleCrystal structure of HLA-A*11:01 in complex with KRAS peptide (VVGAGGVGK)
Components
  • Beta-2-microglobulin
  • KRAS-G12wt-9
  • MHC class I antigen (Fragment)
KeywordsIMMUNE SYSTEM / KRAS / MHC
Function / homology
Function and homology information


forebrain astrocyte development / negative regulation of epithelial cell differentiation / regulation of synaptic transmission, GABAergic / epithelial tube branching involved in lung morphogenesis / type I pneumocyte differentiation / Rac protein signal transduction / skeletal muscle cell differentiation / positive regulation of Rac protein signal transduction / Signaling by RAS GAP mutants / Signaling by RAS GTPase mutants ...forebrain astrocyte development / negative regulation of epithelial cell differentiation / regulation of synaptic transmission, GABAergic / epithelial tube branching involved in lung morphogenesis / type I pneumocyte differentiation / Rac protein signal transduction / skeletal muscle cell differentiation / positive regulation of Rac protein signal transduction / Signaling by RAS GAP mutants / Signaling by RAS GTPase mutants / Activation of RAS in B cells / RAS signaling downstream of NF1 loss-of-function variants / RUNX3 regulates p14-ARF / SOS-mediated signalling / Activated NTRK3 signals through RAS / Activated NTRK2 signals through RAS / SHC1 events in ERBB4 signaling / Signalling to RAS / SHC-related events triggered by IGF1R / glial cell proliferation / Activated NTRK2 signals through FRS2 and FRS3 / Estrogen-stimulated signaling through PRKCZ / SHC-mediated cascade:FGFR3 / MET activates RAS signaling / Signaling by PDGFRA transmembrane, juxtamembrane and kinase domain mutants / Signaling by PDGFRA extracellular domain mutants / SHC-mediated cascade:FGFR2 / PTK6 Regulates RHO GTPases, RAS GTPase and MAP kinases / SHC-mediated cascade:FGFR4 / Signaling by FGFR4 in disease / SHC-mediated cascade:FGFR1 / Erythropoietin activates RAS / protein-membrane adaptor activity / FRS-mediated FGFR3 signaling / Signaling by CSF3 (G-CSF) / Signaling by FLT3 ITD and TKD mutants / positive regulation of glial cell proliferation / homeostasis of number of cells within a tissue / FRS-mediated FGFR2 signaling / FRS-mediated FGFR4 signaling / Signaling by FGFR3 in disease / p38MAPK events / Tie2 Signaling / FRS-mediated FGFR1 signaling / Signaling by FGFR2 in disease / striated muscle cell differentiation / GRB2 events in EGFR signaling / SHC1 events in EGFR signaling / EGFR Transactivation by Gastrin / Signaling by FLT3 fusion proteins / FLT3 Signaling / Ras activation upon Ca2+ influx through NMDA receptor / Signaling by FGFR1 in disease / GRB2 events in ERBB2 signaling / NCAM signaling for neurite out-growth / CD209 (DC-SIGN) signaling / SHC1 events in ERBB2 signaling / Downstream signal transduction / Constitutive Signaling by Overexpressed ERBB2 / Insulin receptor signalling cascade / small monomeric GTPase / Signaling by phosphorylated juxtamembrane, extracellular and kinase domain KIT mutants / G protein activity / positive regulation of ferrous iron binding / positive regulation of transferrin receptor binding / VEGFR2 mediated cell proliferation / positive regulation of receptor binding / early endosome lumen / Nef mediated downregulation of MHC class I complex cell surface expression / DAP12 interactions / negative regulation of receptor binding / 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 / cellular response to iron ion / Endosomal/Vacuolar pathway / FCERI mediated MAPK activation / Antigen Presentation: Folding, assembly and peptide loading of class I MHC / Signaling by ERBB2 TMD/JMD mutants / RAF activation / regulation of long-term neuronal synaptic plasticity / Signaling by high-kinase activity BRAF mutants / cellular response to iron(III) ion / antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent / Constitutive Signaling by EGFRvIII / negative regulation of forebrain neuron differentiation / MAP2K and MAPK activation / visual learning / Signaling by ERBB2 ECD mutants / regulation of erythrocyte differentiation / ER to Golgi transport vesicle membrane / peptide antigen assembly with MHC class I protein complex / regulation of iron ion transport / response to molecule of bacterial origin / Signaling by ERBB2 KD Mutants / MHC class I peptide loading complex / Signaling by SCF-KIT / HFE-transferrin receptor complex / T cell mediated cytotoxicity / cytoplasmic side of plasma membrane / antigen processing and presentation of endogenous peptide antigen via MHC class I
Similarity search - Function
Small GTPase, Ras-type / small GTPase Ras family profile. / Ran (Ras-related nuclear proteins) /TC4 subfamily of small GTPases / Rho (Ras homology) subfamily of Ras-like small GTPases / Ras subfamily of RAS small GTPases / MHC class I alpha chain, alpha1 alpha2 domains / Small GTPase / Ras family / Class I Histocompatibility antigen, domains alpha 1 and 2 / Rab subfamily of small GTPases ...Small GTPase, Ras-type / small GTPase Ras family profile. / Ran (Ras-related nuclear proteins) /TC4 subfamily of small GTPases / Rho (Ras homology) subfamily of Ras-like small GTPases / Ras subfamily of RAS small GTPases / MHC class I alpha chain, alpha1 alpha2 domains / Small GTPase / Ras family / Class I Histocompatibility antigen, domains alpha 1 and 2 / Rab subfamily of small GTPases / 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 / Small GTP-binding protein domain / 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 / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
GTPase KRas / Beta-2-microglobulin / MHC class I antigen
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsLu, D. / Chen, Y. / Jiang, M. / Tan, S.G. / Chai, Y. / Gao, G.F.
Funding support China, 4items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)2022YFC2302900 China
National Natural Science Foundation of China (NSFC)2021YFC2301400 China
National Natural Science Foundation of China (NSFC)92169208 China
National Natural Science Foundation of China (NSFC)32222031 China
CitationJournal: Nat Commun / Year: 2023
Title: Crystal structure of a TCR in complex with HLA-A*11:01 bound to KRAS peptide (VVGAVGVGK)
Authors: Lu, D. / Chen, Y. / Jiang, M. / Tan, S.G. / Chai, Y. / Gao, G.F.
History
DepositionJan 25, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 23, 2023Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
H: MHC class I antigen (Fragment)
L: Beta-2-microglobulin
P: KRAS-G12wt-9


Theoretical massNumber of molelcules
Total (without water)44,2453
Polymers44,2453
Non-polymers00
Water2,900161
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: surface plasmon resonance
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3950 Å2
ΔGint-12 kcal/mol
Surface area18630 Å2
MethodPISA
Unit cell
Length a, b, c (Å)49.140, 67.697, 73.100
Angle α, β, γ (deg.)90.000, 100.880, 90.000
Int Tables number4
Space group name H-MP1211
Space group name HallP2yb
Symmetry operation#1: x,y,z
#2: -x,y+1/2,-z

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Components

#1: Protein MHC class I antigen (Fragment)


Mass: 31753.006 Da / Num. of mol.: 1 / Mutation: A245V,E253Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HLA-A / Production host: Escherichia coli (E. coli) / References: UniProt: U5YJJ6
#2: Protein Beta-2-microglobulin


Mass: 11748.160 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: B2M / Production host: Escherichia coli (E. coli) / References: UniProt: P61769
#3: Protein/peptide KRAS-G12wt-9


Mass: 743.872 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P01116
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 161 / Source method: isolated from a natural source / Formula: H2O

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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: 2.7 Å3/Da / Density % sol: 54.42 %
Crystal growTemperature: 291.15 K / Method: vapor diffusion, sitting drop / Details: 0.1 M Tris. 8.0. 25% v/v PEG 350 MME.

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL19U1 / Wavelength: 0.97853 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Nov 15, 2022
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97853 Å / Relative weight: 1
ReflectionResolution: 2.2→50 Å / Num. obs: 23921 / % possible obs: 99.9 % / Redundancy: 6.7 % / Biso Wilson estimate: 32.17 Å2 / Rmerge(I) obs: 0.125 / Net I/σ(I): 14.8
Reflection shellResolution: 2.2→2.28 Å / Rmerge(I) obs: 1.103 / Num. unique obs: 2361

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Processing

Software
NameVersionClassification
HKL-2000data reduction
PHENIX1.13_2998refinement
Cootmodel building
HKL-2000data scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 7S8Q

7s8q


Resolution: 2.2→39.3 Å / SU ML: 0.2471 / Cross valid method: FREE R-VALUE / σ(F): 1.36 / Phase error: 24.5888 / Stereochemistry target values: GeoStd + Monomer Library
RfactorNum. reflection% reflection
Rfree0.2353 1083 4.7 %
Rwork0.1824 21943 -
obs0.1849 23026 96.1 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 35.71 Å2
Refinement stepCycle: LAST / Resolution: 2.2→39.3 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3117 0 0 161 3278
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00753203
X-RAY DIFFRACTIONf_angle_d0.90734346
X-RAY DIFFRACTIONf_chiral_restr0.0523439
X-RAY DIFFRACTIONf_plane_restr0.0067576
X-RAY DIFFRACTIONf_dihedral_angle_d3.18261893
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.2-2.30.27041020.21372126X-RAY DIFFRACTION75.37
2.3-2.420.30531250.22052710X-RAY DIFFRACTION94.78
2.42-2.580.27411480.22382798X-RAY DIFFRACTION98.86
2.58-2.780.2761360.21762836X-RAY DIFFRACTION99.83
2.78-3.050.29451430.20582838X-RAY DIFFRACTION99.83
3.05-3.50.24791430.18492863X-RAY DIFFRACTION100
3.5-4.40.19981390.1572860X-RAY DIFFRACTION100
4.4-39.30.18921470.15792912X-RAY DIFFRACTION99.84

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