1u8g

Crystal structure of a HIV-1 Protease in complex with peptidomimetic inhibitor KI2-PHE-GLU-GLU-NH2

Method: X-RAY DIFFRACTION Dmax: 60.0 Å Quality: GOOD

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

PROTEASE RETROPEPSIN

Human immunodeficiency virus 1

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 69–167 Chain B; UniProt 69–167 Not recorded peptidomimetic inhibitor KI2-PHE-GLU-GLU-NH2 × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.6;50mM MES, 2.4 ammonium sulfate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 255K Resolution 2.20 Å R-free 0.259

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 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 1u8g

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1u8g
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1u8g
Deposition date deposition_date2004-08-06
Structure title titleCrystal structure of a HIV-1 Protease in complex with peptidomimetic inhibitor KI2-PHE-GLU-GLU-NH2
Keywords keywordsASPARTYL PROTEASE, HUMAN IMMUNODEFICIENCY VIRUS, INHIBITOR DESIGN, 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_guinier17.90
Radius of gyration Rg (electron density) rg_electron17.00
Forward intensity I(0) i07914090.00
Molecular weight molecular_weight22029.0 kDa
Excluded volume excluded_volume28204 ų
Envelope volume envelope_volume30985 ų
Hydration-shell volume shell_volume15587 ų
Envelope diameter envelope_diameter56.7
Shell Rg shell_rg22.90
Envelope Rg envelope_rg17.31
Shape Rg shape_rg17.00
Total Rg total_rg18.02
Total atoms total_atoms1549
Residues n_residues201
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 dmax60.0
Rg (real space) rg_real17.86
Rg uncertainty (real space) rg_real_error0.39
I(0) (real space) i0_real7.9140e+06
I(0) uncertainty (real space) i0_real_error9.6450e+04
Rg (reciprocal space) rg_reciprocal17.87
I(0) (reciprocal space) i0_reciprocal7914000.0000
Solution quality estimate total_estimate0.8733
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary20.3
Skewness Skewness skewness0.325
Kurtosis Kurtosis kurtosis-0.291
Angular range angular_range— – 0.4450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3318000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.786; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.992

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_idd1u8ga_
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_idd1u8gb_
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_id1u8gA00
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_id1u8gB00
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)