3phv

X-RAY ANALYSIS OF HIV-1 PROTEINASE AT 2.7 ANGSTROMS RESOLUTION CONFIRMS STRUCTURAL HOMOLOGY AMONG RETROVIRAL ENZYMES

Method: X-RAY DIFFRACTION Dmax: 51.6 Å Quality: GOOD

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

UNLIGANDED HIV-1 PROTEASE

HIV-1 M:B_HXB2R

UniProt P04585

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 Not recorded No other associated polymer X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.70 Å

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.

178 other PDB entries and 201 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_HV1H2
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; 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 3phv

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id3phv
Deposition date deposition_date1991-11-04
Structure title titleX-RAY ANALYSIS OF HIV-1 PROTEINASE AT 2.7 ANGSTROMS RESOLUTION CONFIRMS STRUCTURAL HOMOLOGY AMONG RETROVIRAL ENZYMES
Keywords keywordsHYDROLASE, ASPARTIC PROTEINASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier14.85
Radius of gyration Rg (electron density) rg_electron13.71
Forward intensity I(0) i02252440.00
Molecular weight molecular_weight10795.0 kDa
Excluded volume excluded_volume13835 ų
Envelope volume envelope_volume16383 ų
Hydration-shell volume shell_volume10587 ų
Envelope diameter envelope_diameter50.9
Shell Rg shell_rg18.87
Envelope Rg envelope_rg14.10
Shape Rg shape_rg13.74
Total Rg total_rg14.90
Total atoms total_atoms758
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 dmax51.6
Rg (real space) rg_real14.81
Rg uncertainty (real space) rg_real_error0.28
I(0) (real space) i0_real2.2520e+06
I(0) uncertainty (real space) i0_real_error2.5680e+04
Rg (reciprocal space) rg_reciprocal14.81
I(0) (reciprocal space) i0_reciprocal2252000.0000
Solution quality estimate total_estimate0.8412
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary17.6
Skewness Skewness skewness0.306
Kurtosis Kurtosis kurtosis-0.106
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha650900.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.652; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.993; Smooth: 0.982

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3phva_
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_id3phvA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases

8. Citations (2)

9. Files and Curves (10)