8eqs

Structure of SARS-CoV-1 Orf3a in late endosome/lysosome-like environment, MSP1D1 nanodisc

Method: ELECTRON MICROSCOPY Dmax: 81.9 Å Quality: GOOD

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

ORF3a protein

Severe acute respiratory syndrome coronavirus

UniProt P59632

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–274 Chain B; UniProt 1–274 Not recorded Apolipoprotein A-I × 2 (P02647) PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.10 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.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name AP3A_SARS
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–274; UniProt 1–274 Author chain B; PDBConstruct 1–274; UniProt 1–274

Apolipoprotein A-I

Homo sapiens

UniProt P02647

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain C; UniProt 79–267 Chain D; UniProt 79–267 Not recorded ORF3a protein × 2 (P59632) PEE 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.10 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.

30 other PDB entries and 31 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name APOA1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 23–211; UniProt 79–267 Author chain D; PDBConstruct 23–211; UniProt 79–267

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 8eqs

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id8eqs
Deposition date deposition_date2022-10-09
Structure title titleStructure of SARS-CoV-1 Orf3a in late endosome/lysosome-like environment, MSP1D1 nanodisc
Keywords keywordsMembrane protein, SARS-CoV, SARS-CoV-2, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier24.35
Radius of gyration Rg (electron density) rg_electron23.80
Forward intensity I(0) i039233000.00
Molecular weight molecular_weight51702.0 kDa
Excluded volume excluded_volume65946 ų
Envelope volume envelope_volume79955 ų
Hydration-shell volume shell_volume28125 ų
Envelope diameter envelope_diameter81.9
Shell Rg shell_rg30.88
Envelope Rg envelope_rg23.89
Shape Rg shape_rg23.81
Total Rg total_rg24.63
Total atoms total_atoms3654
Residues n_residues438
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 dmax81.9
Rg (real space) rg_real24.33
Rg uncertainty (real space) rg_real_error0.52
I(0) (real space) i0_real3.9230e+07
I(0) uncertainty (real space) i0_real_error5.6690e+05
Rg (reciprocal space) rg_reciprocal24.33
I(0) (reciprocal space) i0_reciprocal39230000.0000
Solution quality estimate total_estimate0.8688
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary29.9
Skewness Skewness skewness0.395
Kurtosis Kurtosis kurtosis-0.082
Angular range angular_range— – 0.3250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6441000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.787; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.989; Smooth: 0.941

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (2)

9. Files and Curves (10)