8oi2

Crystal structure of Alb1 megabody in complex with human serum albumin

Method: X-RAY DIFFRACTION Dmax: 173.6 Å Quality: REASONABLE

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

Albumin

Homo sapiens

UniProt P02768

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 27–607 Not recorded Alb1 Megabody × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8.5;293 K;0.03M Sodium fluoride, 0.03M sodium bromide, 0.03M sodium iodide, 0.1M Tris BICINE pH 8.5, 12% v/v ethylene glycol, 6% w/v PEG 8000 Resolution 3.30 Å R-free 0.277

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.

187 other PDB entries and 271 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ALBU_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–581; UniProt 27–607

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 8oi2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8oi2
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8oi2
Deposition date deposition_date2023-03-22
Structure title titleCrystal structure of Alb1 megabody in complex with human serum albumin
Keywords keywordsnanobody, megabody, albumin, 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_guinier49.30
Radius of gyration Rg (electron density) rg_electron50.49
Forward intensity I(0) i0184152000.00
Molecular weight molecular_weight109410.0 kDa
Excluded volume excluded_volume136040 ų
Envelope volume envelope_volume198770 ų
Hydration-shell volume shell_volume36369 ų
Envelope diameter envelope_diameter184.1
Shell Rg shell_rg47.50
Envelope Rg envelope_rg49.82
Shape Rg shape_rg50.49
Total Rg total_rg50.34
Total atoms total_atoms7679
Residues n_residues984
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 dmax173.6
Rg (real space) rg_real50.39
Rg uncertainty (real space) rg_real_error2.48
I(0) (real space) i0_real1.8420e+08
I(0) uncertainty (real space) i0_real_error4.1000e+06
Rg (reciprocal space) rg_reciprocal49.31
I(0) (reciprocal space) i0_reciprocal183900000.0000
Solution quality estimate total_estimate0.6998
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary32.5
Skewness Skewness skewness0.562
Kurtosis Kurtosis kurtosis-0.438
Angular range angular_range— – 0.1600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha8173000.0000
Real-space data points n_real_points33
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.493; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.288; Smooth: 0.325

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)