3qn8

HIV-1 protease (mutant Q7K L33I L63I) in complex with a novel inhibitor

Method: X-RAY DIFFRACTION Dmax: 61.3 Å Quality: GOOD

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

Protease

Human immunodeficiency virus type 1 (BRU ISOLATE)

UniProt P03367

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 501–599 Chain B; UniProt 501–599 Mutation:Q7K L33I L63I CL CHLORIDE ION × 3 NI7 (4aS,7aS)-1,4-bis(3-hydroxybenzyl)hexahydro-1H-pyrrolo[3,4-b]pyrazine-2,3-dione × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;289 K;500mM NaCl, 100mM Na citrate, 100mM DTT, 3mM NaN3, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 289K Resolution 1.38 Å R-free 0.181

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.

198 other PDB entries and 210 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_HV1BR
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–99; UniProt 501–599 Author chain B; PDBConstruct 1–99; UniProt 501–599

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 3qn8

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3qn8
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3qn8
Deposition date deposition_date2011-02-08
Structure title titleHIV-1 protease (mutant Q7K L33I L63I) in complex with a novel inhibitor
Keywords keywordsAspartyl Protease, 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_guinier18.09
Radius of gyration Rg (electron density) rg_electron17.13
Forward intensity I(0) i07845310.00
Molecular weight molecular_weight21801.0 kDa
Excluded volume excluded_volume27889 ų
Envelope volume envelope_volume31252 ų
Hydration-shell volume shell_volume15649 ų
Envelope diameter envelope_diameter59.8
Shell Rg shell_rg22.85
Envelope Rg envelope_rg17.43
Shape Rg shape_rg17.13
Total Rg total_rg18.13
Total atoms total_atoms1528
Residues n_residues198
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 dmax61.3
Rg (real space) rg_real18.06
Rg uncertainty (real space) rg_real_error0.37
I(0) (real space) i0_real7.8450e+06
I(0) uncertainty (real space) i0_real_error9.3560e+04
Rg (reciprocal space) rg_reciprocal18.06
I(0) (reciprocal space) i0_reciprocal7845000.0000
Solution quality estimate total_estimate0.8698
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary19.9
Skewness Skewness skewness0.345
Kurtosis Kurtosis kurtosis-0.262
Angular range angular_range— – 0.4400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3344000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.771; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.994

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_idd3qn8a_
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_idd3qn8b_
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 (2 domains)

Domain ID domain_id3qn8A00
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_id3qn8B00
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)