8t1k

DSBU crosslinked nNOS-CaM oxygenase homodimer

Method: ELECTRON MICROSCOPY Dmax: 94.7 Å Quality: EXCELLENT

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

Nitric oxide synthase 1

Rattus norvegicus

UniProt P29476

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–1429 Chain B; UniProt 1–1429 Not recorded ZN ZINC ION × 1 ARG ARGININE × 2 H4B 5,6,7,8-TETRAHYDROBIOPTERIN × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.14 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.

348 other PDB entries and 351 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NOS1_RAT
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–1429; UniProt 1–1429 Author chain B; PDBConstruct 1–1429; UniProt 1–1429

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 8t1k

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8t1k
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8t1k
Deposition date deposition_date2023-06-02
Structure title titleDSBU crosslinked nNOS-CaM oxygenase homodimer
Keywords keywordsComplex, CYTOSOLIC PROTEIN; CYTOSOLIC PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier30.29
Radius of gyration Rg (electron density) rg_electron29.60
Forward intensity I(0) i0154987000.00
Molecular weight molecular_weight99014.0 kDa
Excluded volume excluded_volume123790 ų
Envelope volume envelope_volume152760 ų
Hydration-shell volume shell_volume42306 ų
Envelope diameter envelope_diameter94.7
Shell Rg shell_rg37.68
Envelope Rg envelope_rg29.59
Shape Rg shape_rg29.62
Total Rg total_rg30.25
Total atoms total_atoms6973
Residues n_residues838
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 dmax94.7
Rg (real space) rg_real30.22
Rg uncertainty (real space) rg_real_error0.49
I(0) (real space) i0_real1.5500e+08
I(0) uncertainty (real space) i0_real_error2.2370e+06
Rg (reciprocal space) rg_reciprocal30.25
I(0) (reciprocal space) i0_reciprocal155000000.0000
Solution quality estimate total_estimate0.9007
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary34.6
Skewness Skewness skewness0.278
Kurtosis Kurtosis kurtosis-0.511
Angular range angular_range— – 0.2600 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha48330000.0000
Real-space data points n_real_points53
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.923; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.937

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)