4ppi

Crystal structure of Bcl-xL hexamer

Method: X-RAY DIFFRACTION Dmax: 78.3 Å Quality: REASONABLE

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

Bcl-2-like protein 1

Homo sapiens

UniProt Q07817

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 homooligomer Homooligomer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 1–209 Fragment:Bcl-xl, UNP residues 1-209, with deletion of residues 45-84 GOL GLYCEROL × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 9;291 K;1.0M sodium citrate, 0.1M CHES pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K Resolution 2.85 Å R-free 0.269

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.

123 other PDB entries and 195 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name B2CL1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–169; UniProt 1–209

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 4ppi

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4ppi
Deposition date deposition_date2014-02-27
Structure title titleCrystal structure of Bcl-xL hexamer
Keywords keywords3D DOMAIN SWAP, APOPTOSIS, ANTI-APOPTOTIC, BCL-2 FAMILY; APOPTOSIS
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.05
Radius of gyration Rg (electron density) rg_electron22.81
Forward intensity I(0) i04606350.00
Molecular weight molecular_weight15597.0 kDa
Excluded volume excluded_volume19517 ų
Envelope volume envelope_volume28308 ų
Hydration-shell volume shell_volume12277 ų
Envelope diameter envelope_diameter76.3
Shell Rg shell_rg25.65
Envelope Rg envelope_rg23.10
Shape Rg shape_rg22.88
Total Rg total_rg23.10
Total atoms total_atoms1105
Residues n_residues135
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 dmax78.3
Rg (real space) rg_real23.46
Rg uncertainty (real space) rg_real_error0.94
I(0) (real space) i0_real4.6060e+06
I(0) uncertainty (real space) i0_real_error7.4450e+04
Rg (reciprocal space) rg_reciprocal23.37
I(0) (reciprocal space) i0_reciprocal4606000.0000
Solution quality estimate total_estimate0.7475
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary53.0
Skewness Skewness skewness0.613
Kurtosis Kurtosis kurtosis-0.490
Angular range angular_range— – 0.3450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha339000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.417; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.512; Smooth: 0.959

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4ppia1
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.1 — Toxins' membrane translocation domains
Superfamily Superfamily superfamilyf.1.4 — Bcl-2 inhibitors of programmed cell death
Family Family familyf.1.4.1 — Bcl-2 inhibitors of programmed cell death
Domain ID domain_idd4ppia2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

8. Citations (1)

9. Files and Curves (10)