8a7p

beta-2-microglobulin DeltaN6 amyloid fibril form 2PFb

Method: ELECTRON MICROSCOPY Dmax: 140.4 Å Quality: REASONABLE

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

Beta-2-microglobulin form pI 5.3

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 homooligomer Homooligomer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 27–119 Chain B; UniProt 27–119 Chain C; UniProt 27–119 Chain D; UniProt 27–119 Chain E; UniProt 27–119 Chain F; UniProt 27–119 Mutation:deltaN6, K6M No other associated polymer ELECTRON MICROSCOPY cryo-EM buffer:pH 6.2 cryo-EM vitrification conditions:Cryogen ETHANE;6s blot Resolution 3.40 Å

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 2–94; UniProt 27–119 Author chain B; PDBConstruct 2–94; UniProt 27–119 Author chain C; PDBConstruct 2–94; UniProt 27–119 Author chain D; PDBConstruct 2–94; UniProt 27–119 Author chain E; PDBConstruct 2–94; UniProt 27–119 Author chain F; PDBConstruct 2–94; UniProt 27–119

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 8a7p

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8a7p
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8a7p
Deposition date deposition_date2022-06-21
Structure title titlebeta-2-microglobulin DeltaN6 amyloid fibril form 2PFb
Keywords keywordsAmyloid, fibril, helical, cross-beta, dialysis-related amyloidosis, b2m, polymorph, PROTEIN FIBRIL; PROTEIN FIBRIL
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier44.59
Radius of gyration Rg (electron density) rg_electron45.65
Forward intensity I(0) i057011500.00
Molecular weight molecular_weight61118.0 kDa
Excluded volume excluded_volume76266 ų
Envelope volume envelope_volume110920 ų
Hydration-shell volume shell_volume23663 ų
Envelope diameter envelope_diameter149.2
Shell Rg shell_rg40.23
Envelope Rg envelope_rg45.49
Shape Rg shape_rg45.69
Total Rg total_rg45.18
Total atoms total_atoms4320
Residues n_residues522
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 dmax140.4
Rg (real space) rg_real45.41
Rg uncertainty (real space) rg_real_error1.20
I(0) (real space) i0_real5.7010e+07
I(0) uncertainty (real space) i0_real_error1.0080e+06
Rg (reciprocal space) rg_reciprocal44.60
I(0) (reciprocal space) i0_reciprocal56960000.0000
Solution quality estimate total_estimate0.7005
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary28.1
Skewness Skewness skewness0.498
Kurtosis Kurtosis kurtosis-0.770
Angular range angular_range— – 0.1750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2132000.0000
Real-space data points n_real_points36
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.631; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.209; Smooth: 0.002

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)