2hb4

Structure of HIV Protease NL4-3 in an Unliganded State

Method: X-RAY DIFFRACTION Dmax: 53.8 Å Quality: GOOD

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

Protease

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 500–598 Fragment:residues 500-598 Mutation:Q7K MG MAGNESIUM ION × 2 PGR R-1,2-PROPANEDIOL × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;281.16 K;100mM Tris HCl, 0.2M MgCl2, 15% PEG 8K, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 281.16K Resolution 2.15 Å R-free 0.321

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 500–598

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 2hb4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2hb4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2hb4
Deposition date deposition_date2006-06-13
Structure title titleStructure of HIV Protease NL4-3 in an Unliganded State
Keywords keywordsHIV, protease, aspartyl, retrovirus, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier14.75
Radius of gyration Rg (electron density) rg_electron13.53
Forward intensity I(0) i02306070.00
Molecular weight molecular_weight11076.0 kDa
Excluded volume excluded_volume14239 ų
Envelope volume envelope_volume16786 ų
Hydration-shell volume shell_volume10824 ų
Envelope diameter envelope_diameter51.7
Shell Rg shell_rg18.97
Envelope Rg envelope_rg14.07
Shape Rg shape_rg13.57
Total Rg total_rg14.77
Total atoms total_atoms776
Residues n_residues99
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 dmax53.8
Rg (real space) rg_real14.71
Rg uncertainty (real space) rg_real_error0.37
I(0) (real space) i0_real2.3060e+06
I(0) uncertainty (real space) i0_real_error2.6840e+04
Rg (reciprocal space) rg_reciprocal14.71
I(0) (reciprocal space) i0_reciprocal2306000.0000
Solution quality estimate total_estimate0.8171
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary17.7
Skewness Skewness skewness0.312
Kurtosis Kurtosis kurtosis-0.077
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha857300.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.551; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.964; Smooth: 1.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2hb4a_
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 (1 domains)

Domain ID domain_id2hb4A00
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)