9nnz

Structure of rod opsin in complex with a megabody

Method: ELECTRON MICROSCOPY Dmax: 93.9 Å Quality: REASONABLE

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

Rhodopsin

OrganismNot specified

UniProt P02699

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 2 其他Polymer 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–348 Not recorded Megabody 7 × 1 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE;LEICA EM GP2 Resolution 3.94 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.

74 other PDB entries and 95 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name OPSD_BOVIN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–348; UniProt 1–348

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 9nnz

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9nnz
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9nnz
Deposition date deposition_date2025-03-06
Structure title titleStructure of rod opsin in complex with a megabody
Keywords keywordsopsin, membrane protein, megabody, nanobody; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier24.97
Radius of gyration Rg (electron density) rg_electron24.17
Forward intensity I(0) i021598100.00
Molecular weight molecular_weight34768.0 kDa
Excluded volume excluded_volume42993 ų
Envelope volume envelope_volume59915 ų
Hydration-shell volume shell_volume22132 ų
Envelope diameter envelope_diameter90.7
Shell Rg shell_rg29.79
Envelope Rg envelope_rg24.93
Shape Rg shape_rg24.19
Total Rg total_rg24.87
Total atoms total_atoms2484
Residues n_residues374
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 dmax93.9
Rg (real space) rg_real25.28
Rg uncertainty (real space) rg_real_error1.14
I(0) (real space) i0_real2.1600e+07
I(0) uncertainty (real space) i0_real_error3.5380e+05
Rg (reciprocal space) rg_reciprocal25.21
I(0) (reciprocal space) i0_reciprocal21600000.0000
Solution quality estimate total_estimate0.6809
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary23.8
Skewness Skewness skewness0.645
Kurtosis Kurtosis kurtosis0.007
Angular range angular_range— – 0.3200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7528000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.476; Stabil: 0.977; Sysdev: 1.000; Positv: 1.000; Valcen: 0.488; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)