3ndt

HIV-1 Protease Saquinavir:Ritonavir 1:1 complex structure

Method: X-RAY DIFFRACTION Dmax: 86.5 Å Quality: GOOD

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

Protease

Human immunodeficiency virus type 1 BH10

UniProt P03366

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 1–99 Chain B; UniProt 1–99 Non-standard monomer:Yes (specific site not provided by mmCIF) ROC (2S)-N-[(2S,3R)-4-[(2S,3S,4aS,8aS)-3-(tert-butylcarbamoyl)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]-3-hydroxy-1 -phenyl-butan-2-yl]-2-(quinolin-2-ylcarbonylamino)butanediamide × 1 CL CHLORIDE ION × 6 DMS DIMETHYL SULFOXIDE × 2 NA SODIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;298 K;AMMONIUM SULFATE, DMSO, SODIUM CITRATE, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 1.72 Å R-free 0.229
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–99 Chain D; UniProt 1–99 Non-standard monomer:Yes (specific site not provided by mmCIF) ROC (2S)-N-[(2S,3R)-4-[(2S,3S,4aS,8aS)-3-(tert-butylcarbamoyl)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]-3-hydroxy-1 -phenyl-butan-2-yl]-2-(quinolin-2-ylcarbonylamino)butanediamide × 1 CL CHLORIDE ION × 1 DMS DIMETHYL SULFOXIDE × 2 NA SODIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;298 K;AMMONIUM SULFATE, DMSO, SODIUM CITRATE, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 1.72 Å R-free 0.229

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.

383 other PDB entries and 468 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_HV1B1
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–100; UniProt 1–99 Author chain B; PDBConstruct 2–100; UniProt 1–99 Author chain C; PDBConstruct 2–100; UniProt 1–99 Author chain D; PDBConstruct 2–100; UniProt 1–99

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 3ndt

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3ndt
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3ndt
Deposition date deposition_date2010-06-08
Structure title titleHIV-1 Protease Saquinavir:Ritonavir 1:1 complex structure
Keywords keywordsHYDROLASE, AIDS, ASPARTYL PROTEASE, CARBAMYLATION, hydrolase-hydrolase inhibitor complex; hydrolase/hydrolase inhibitor
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier24.62
Radius of gyration Rg (electron density) rg_electron23.62
Forward intensity I(0) i029213900.00
Molecular weight molecular_weight44964.0 kDa
Excluded volume excluded_volume57907 ų
Envelope volume envelope_volume69392 ų
Hydration-shell volume shell_volume24533 ų
Envelope diameter envelope_diameter85.6
Shell Rg shell_rg30.67
Envelope Rg envelope_rg23.58
Shape Rg shape_rg23.57
Total Rg total_rg24.71
Total atoms total_atoms3153
Residues n_residues396
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 dmax86.5
Rg (real space) rg_real24.57
Rg uncertainty (real space) rg_real_error0.88
I(0) (real space) i0_real2.9210e+07
I(0) uncertainty (real space) i0_real_error4.4850e+05
Rg (reciprocal space) rg_reciprocal24.58
I(0) (reciprocal space) i0_reciprocal29210000.0000
Solution quality estimate total_estimate0.7787
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks4
Primary peak position r_peak_primary33.0
Skewness Skewness skewness0.271
Kurtosis Kurtosis kurtosis-0.417
Angular range angular_range— – 0.3200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha19610000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.748; Stabil: 0.990; Sysdev: 1.000; Positv: 1.000; Valcen: 0.906; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3ndta_
Class classb — All beta proteins
Fold Fold foldb.50 — Acid proteases
Superfamily Superfamily superfamilyb.50.1 — Acid proteases
Family Family familyb.50.1.1 — Retroviral protease (retropepsin)
Domain ID domain_idd3ndtb_
Class classb — All beta proteins
Fold Fold foldb.50 — Acid proteases
Superfamily Superfamily superfamilyb.50.1 — Acid proteases
Family Family familyb.50.1.1 — Retroviral protease (retropepsin)
Domain ID domain_idd3ndtc_
Class classb — All beta proteins
Fold Fold foldb.50 — Acid proteases
Superfamily Superfamily superfamilyb.50.1 — Acid proteases
Family Family familyb.50.1.1 — Retroviral protease (retropepsin)
Domain ID domain_idd3ndtd_
Class classb — All beta proteins
Fold Fold foldb.50 — Acid proteases
Superfamily Superfamily superfamilyb.50.1 — Acid proteases
Family Family familyb.50.1.1 — Retroviral protease (retropepsin)

CATH v4.4 (4 domains)

Domain ID domain_id3ndtA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases
Domain ID domain_id3ndtB00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases
Domain ID domain_id3ndtC00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases
Domain ID domain_id3ndtD00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases

8. Citations (1)

9. Files and Curves (10)