4zqk

Structure of the complex of human programmed death-1 (PD-1) and its ligand PD-L1.

Method: X-RAY DIFFRACTION Dmax: 62.9 Å Quality: REASONABLE

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

Programmed cell death 1 ligand 1

Homo sapiens

UniProt Q9NZQ7

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 18–132 Not recorded Programmed cell death protein 1 × 1 (Q15116) NA SODIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;295 K;0.1 M BIS-Tris pH 5.5, 1.84 M ammonium sulfate Resolution 2.45 Å R-free 0.253

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.

74 other PDB entries and 124 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PD1L1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–115; UniProt 18–132

Programmed cell death protein 1

Homo sapiens

UniProt Q15116

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 33–150 Fragment:UNP Residues 33-150 Mutation:C93S Programmed cell death 1 ligand 1 × 1 (Q9NZQ7) NA SODIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;295 K;0.1 M BIS-Tris pH 5.5, 1.84 M ammonium sulfate Resolution 2.45 Å R-free 0.253

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.

33 other PDB entries and 56 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PDCD1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–118; UniProt 33–150

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 4zqk

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4zqk
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4zqk
Deposition date deposition_date2015-05-10
Structure title titleStructure of the complex of human programmed death-1 (PD-1) and its ligand PD-L1.
Keywords keywordscomplex, co-stimulation, receptor-ligand complex, 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_guinier19.14
Radius of gyration Rg (electron density) rg_electron18.22
Forward intensity I(0) i09821630.00
Molecular weight molecular_weight23441.0 kDa
Excluded volume excluded_volume29401 ų
Envelope volume envelope_volume34136 ų
Hydration-shell volume shell_volume16258 ų
Envelope diameter envelope_diameter63.2
Shell Rg shell_rg23.59
Envelope Rg envelope_rg18.47
Shape Rg shape_rg18.23
Total Rg total_rg19.06
Total atoms total_atoms1651
Residues n_residues221
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 dmax62.9
Rg (real space) rg_real19.67
Rg uncertainty (real space) rg_real_error0.15
I(0) (real space) i0_real9.7400e+06
I(0) uncertainty (real space) i0_real_error1.0550e+05
Rg (reciprocal space) rg_reciprocal19.14
I(0) (reciprocal space) i0_reciprocal9822000.0000
Solution quality estimate total_estimate0.6788
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary21.0
Skewness Skewness skewness0.413
Kurtosis Kurtosis kurtosis-0.271
Angular range angular_range— – 0.4150 −1
Current regularization parameter α current_alpha7.3310
Highest regularization parameter α highest_alpha2552000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.898; Stabil: 0.912; Sysdev: 0.000; Positv: 1.000; Valcen: 0.978; Smooth: 0.455

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4zqka_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.0 — automated matches
Domain ID domain_idd4zqkb_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)

CATH v4.4 (2 domains)

Domain ID domain_id4zqkA00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4zqkB00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)