1u5p

Crystal Structure of Repeats 15 and 16 of Chicken Brain Alpha Spectrin

Method: X-RAY DIFFRACTION Dmax: 110.3 Å Quality: REASONABLE

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

Spectrin alpha chain, brain

Gallus gallus

UniProt P07751

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 1662–1876 Fragment:repeats 15 and 16 (residues 1662 to 1876) K POTASSIUM ION × 1 PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;287 K;1M NaH2PO4, 1M K2HPO4, 0.2M ammonium acetate, 0.1M Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 287K Resolution 2.00 Å R-free 0.225

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.

60 other PDB entries and 65 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SPTA2_CHICK
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–216; UniProt 1662–1876

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 1u5p

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1u5p
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id1u5p
Deposition date deposition_date2004-07-28
Structure title titleCrystal Structure of Repeats 15 and 16 of Chicken Brain Alpha Spectrin
Keywords keywordsalpha spectrin, two repeats of spectrin, alpha-helical linker region, 3-helix coiled coil, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier30.00
Radius of gyration Rg (electron density) rg_electron30.48
Forward intensity I(0) i011163100.00
Molecular weight molecular_weight24347.0 kDa
Excluded volume excluded_volume30085 ų
Envelope volume envelope_volume40553 ų
Hydration-shell volume shell_volume14242 ų
Envelope diameter envelope_diameter113.3
Shell Rg shell_rg29.37
Envelope Rg envelope_rg31.31
Shape Rg shape_rg30.43
Total Rg total_rg30.52
Total atoms total_atoms1712
Residues n_residues211
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 dmax110.3
Rg (real space) rg_real30.83
Rg uncertainty (real space) rg_real_error1.46
I(0) (real space) i0_real1.1160e+07
I(0) uncertainty (real space) i0_real_error2.0770e+05
Rg (reciprocal space) rg_reciprocal30.47
I(0) (reciprocal space) i0_reciprocal11160000.0000
Solution quality estimate total_estimate0.6314
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary16.7
Skewness Skewness skewness0.727
Kurtosis Kurtosis kurtosis-0.224
Angular range angular_range— – 0.2650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha810500.0000
Real-space data points n_real_points54
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.141; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.021; Smooth: 0.758

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_idd1u5pa1
Class classa — All alpha proteins
Fold Fold folda.7 — Spectrin repeat-like
Superfamily Superfamily superfamilya.7.1 — Spectrin repeat
Family Family familya.7.1.1 — Spectrin repeat
Domain ID domain_idd1u5pa2
Class classa — All alpha proteins
Fold Fold folda.7 — Spectrin repeat-like
Superfamily Superfamily superfamilya.7.1 — Spectrin repeat
Family Family familya.7.1.1 — Spectrin repeat

CATH v4.4 (2 domains)

Domain ID domain_id1u5pA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily60
Domain ID domain_id1u5pA02
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily60

8. Citations (1)

9. Files and Curves (10)