1ajx

HIV-1 PROTEASE IN COMPLEX WITH THE CYCLIC UREA INHIBITOR AHA001

Method: X-RAY DIFFRACTION Dmax: 61.5 Å Quality: REASONABLE

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

HIV-1 PROTEASE

Human immunodeficiency virus 1

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 69–167 Chain B; UniProt 69–167 Not recorded AH1 AHA001 × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 5.5;277 K;CRYSTALLIZATION WAS PERFORMED BY VAPOR DIFFUSION. PROTEASE (2 MG/ML) AND INHIBITOR (40 MM IN DMSO) WAS MIXED IN A RATIO OF 1:1 AND SUBJECTED TO COCRYSTALLIZATION. DROPS CONSISTING OF 5 MICROLITERS OF THE PROTEASE-INHIBITOR MIXTURE PLUS 5 MICROLITERS OF THE CRYSTALLIZATION BUFFER (50 MM MES PH 5.5, 0.4 M NACL AND 0.02% (W/V) NAN3) WERE EQUILIBRATED AGAINST THE SAME BUFFER AT 4 DEGREES C., vapor diffusion, temperature 277K Resolution 2.00 Å R-free 0.237

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 469 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 1–99; UniProt 69–167 Author chain B; PDBConstruct 1–99; UniProt 69–167

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 1ajx

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1ajx
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1ajx
Deposition date deposition_date1997-05-11
Structure title titleHIV-1 PROTEASE IN COMPLEX WITH THE CYCLIC UREA INHIBITOR AHA001
Keywords keywordsPROTEASE, ASPARTYL PROTEASE, NON-PEPTIDE INHIBITOR, DRUG DESIGN, HIV-1; ASPARTYL PROTEASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.17
Radius of gyration Rg (electron density) rg_electron17.21
Forward intensity I(0) i07833490.00
Molecular weight molecular_weight22128.0 kDa
Excluded volume excluded_volume28440 ų
Envelope volume envelope_volume31320 ų
Hydration-shell volume shell_volume15659 ų
Envelope diameter envelope_diameter60.6
Shell Rg shell_rg22.86
Envelope Rg envelope_rg17.47
Shape Rg shape_rg17.20
Total Rg total_rg18.21
Total atoms total_atoms1556
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 dmax61.5
Rg (real space) rg_real18.14
Rg uncertainty (real space) rg_real_error0.40
I(0) (real space) i0_real7.8330e+06
I(0) uncertainty (real space) i0_real_error9.5750e+04
Rg (reciprocal space) rg_reciprocal18.15
I(0) (reciprocal space) i0_reciprocal7834000.0000
Solution quality estimate total_estimate0.7009
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary60.7
Skewness Skewness skewness0.336
Kurtosis Kurtosis kurtosis-0.271
Angular range angular_range— – 0.4400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2885000.0000
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: 0.275; Positv: 1.000; Valcen: 0.995; Smooth: 0.975

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1ajxa_
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_idd1ajxb_
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_id1ajxA00
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_id1ajxB00
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)