8k4t

Crystal structure of HLA-A*11:01 in complex with KRAS G12C peptide (VVVGACGVGK)

Method: X-RAY DIFFRACTION Dmax: 100.4 Å Quality: EXCELLENT

1. Protein Identity and Related Structures Protein Identity & Related Structures

HLA class I histocompatibility antigen, A alpha chain

Homo sapiens

UniProt P04439

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 25–299 Not recorded Beta-2-microglobulin × 1 (P61769) KRAS G12C peptide (VVVGACGVGK) × 1 (P01116) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293.15 K;Ammonium sulfate,Sodium cacodylate pH 6.0, PEG 4000 Resolution 2.30 Å R-free 0.316
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain D; UniProt 25–299 Not recorded Beta-2-microglobulin × 1 (P61769) KRAS G12C peptide (VVVGACGVGK) × 1 (P01116) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293.15 K;Ammonium sulfate,Sodium cacodylate pH 6.0, PEG 4000 Resolution 2.30 Å R-free 0.316

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

53 other PDB entries and 77 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HLAA_HUMAN
Isoform P04439-2
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–276; UniProt 25–299 Author chain D; PDBConstruct 2–276; UniProt 25–299

Beta-2-microglobulin

Homo sapiens

UniProt P61769

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 21–119 Not recorded HLA class I histocompatibility antigen, A alpha chain × 1 (P04439) KRAS G12C peptide (VVVGACGVGK) × 1 (P01116) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293.15 K;Ammonium sulfate,Sodium cacodylate pH 6.0, PEG 4000 Resolution 2.30 Å R-free 0.316
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain E; UniProt 21–119 Not recorded HLA class I histocompatibility antigen, A alpha chain × 1 (P04439) KRAS G12C peptide (VVVGACGVGK) × 1 (P01116) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293.15 K;Ammonium sulfate,Sodium cacodylate pH 6.0, PEG 4000 Resolution 2.30 Å R-free 0.316

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

1313 other PDB entries and 1997 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name B2MG_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 2–100; UniProt 21–119 Author chain E; PDBConstruct 2–100; UniProt 21–119

KRAS G12C peptide (VVVGACGVGK)

Homo sapiens

UniProt P01116

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain C; UniProt 7–16 Mutation:G12C HLA class I histocompatibility antigen, A alpha chain × 1 (P04439) Beta-2-microglobulin × 1 (P61769) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293.15 K;Ammonium sulfate,Sodium cacodylate pH 6.0, PEG 4000 Resolution 2.30 Å R-free 0.316
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain F; UniProt 7–16 Mutation:G12C HLA class I histocompatibility antigen, A alpha chain × 1 (P04439) Beta-2-microglobulin × 1 (P61769) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293.15 K;Ammonium sulfate,Sodium cacodylate pH 6.0, PEG 4000 Resolution 2.30 Å R-free 0.316

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

445 other PDB entries and 803 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RASK_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–10; UniProt 7–16 Author chain F; PDBConstruct 1–10; UniProt 7–16

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 8k4t

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8k4t
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8k4t
Deposition date deposition_date2023-07-20
Structure title titleCrystal structure of HLA-A*11:01 in complex with KRAS G12C peptide (VVVGACGVGK)
Keywords keywordscancer immunotherapy, IMMUNE SYSTEM; IMMUNE SYSTEM
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier31.42
Radius of gyration Rg (electron density) rg_electron30.42
Forward intensity I(0) i0133902000.00
Molecular weight molecular_weight87979.0 kDa
Excluded volume excluded_volume108330 ų
Envelope volume envelope_volume142270 ų
Hydration-shell volume shell_volume38499 ų
Envelope diameter envelope_diameter106.7
Shell Rg shell_rg38.15
Envelope Rg envelope_rg29.99
Shape Rg shape_rg30.41
Total Rg total_rg31.11
Total atoms total_atoms6213
Residues n_residues763
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax100.4
Rg (real space) rg_real31.30
Rg uncertainty (real space) rg_real_error0.78
I(0) (real space) i0_real1.3390e+08
I(0) uncertainty (real space) i0_real_error2.1770e+06
Rg (reciprocal space) rg_reciprocal31.36
I(0) (reciprocal space) i0_reciprocal133900000.0000
Solution quality estimate total_estimate0.9021
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary40.2
Skewness Skewness skewness0.191
Kurtosis Kurtosis kurtosis-0.462
Angular range angular_range— – 0.2500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha15440000.0000
Real-space data points n_real_points51
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.927; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.944

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)