3qda

Crystal structure of W95L beta-2 microglobulin

Method: X-RAY DIFFRACTION Dmax: 55.6 Å Quality: REASONABLE

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

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 21–119 Fragment:Form pI 5.3 (UNP residues 21-119) Mutation:W95L PGE TRIETHYLENE GLYCOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;293 K;19-20% PEG4000, 20% glycerol, 0.2 M ammonium acetate, 0.1 M MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.57 Å R-free 0.198

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 1998 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name B2MG_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–100; UniProt 21–119

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 3qda

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3qda
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id3qda
Deposition date deposition_date2011-01-18
Structure title titleCrystal structure of W95L beta-2 microglobulin
Keywords keywordstryptophan, immunoglobin, beta-sandwich, hydrophobic pocket, amyloidosis, DRA, MHC class I, 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_guinier15.58
Radius of gyration Rg (electron density) rg_electron14.42
Forward intensity I(0) i02948770.00
Molecular weight molecular_weight11937.0 kDa
Excluded volume excluded_volume14924 ų
Envelope volume envelope_volume17783 ų
Hydration-shell volume shell_volume10943 ų
Envelope diameter envelope_diameter55.2
Shell Rg shell_rg19.55
Envelope Rg envelope_rg14.99
Shape Rg shape_rg14.39
Total Rg total_rg15.62
Total atoms total_atoms841
Residues n_residues100
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 dmax55.6
Rg (real space) rg_real15.57
Rg uncertainty (real space) rg_real_error0.39
I(0) (real space) i0_real2.9490e+06
I(0) uncertainty (real space) i0_real_error3.4280e+04
Rg (reciprocal space) rg_reciprocal15.57
I(0) (reciprocal space) i0_reciprocal2949000.0000
Solution quality estimate total_estimate0.6759
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary17.6
Skewness Skewness skewness0.354
Kurtosis Kurtosis kurtosis-0.205
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha721800.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.705; Stabil: 1.000; Sysdev: 0.256; Positv: 1.000; Valcen: 0.905; Smooth: 0.993

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3qdaa_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.2 — C1 set domains (antibody constant domain-like)

CATH v4.4 (1 domains)

Domain ID domain_id3qdaA00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)