4f74

Crystal Structure of active HIV-1 Protease in Complex with the N terminal product of the substrate MA-CA.

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

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

Protease

HIV-1 M:B_ARV2/SF2

UniProt P03369

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 491–589 Chain B; UniProt 491–589 Not recorded N terminal product of substrate MA-CA × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.2;295 K;126mM Phosphate buffer pH 6.2, 63mM Sodium Citrate, 24-31% Ammonium Sulfate, hanging drop, vapor diffusion, temperature 295K, VAPOR DIFFUSION, HANGING DROP Resolution 2.20 Å R-free 0.207

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.

80 other PDB entries and 96 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_HV1A2
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–99; UniProt 491–589 Author chain B; PDBConstruct 1–99; UniProt 491–589

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 4f74

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4f74
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4f74
Deposition date deposition_date2012-05-15
Structure title titleCrystal Structure of active HIV-1 Protease in Complex with the N terminal product of the substrate MA-CA.
Keywords keywordsHIV-1 protease, substrate complex, AIDS, product complex, Aspartyl protease, HYDROLASE, hydrolase-hydrolase product complex; hydrolase/hydrolase product
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.95
Radius of gyration Rg (electron density) rg_electron17.00
Forward intensity I(0) i08031480.00
Molecular weight molecular_weight21682.0 kDa
Excluded volume excluded_volume27571 ų
Envelope volume envelope_volume30727 ų
Hydration-shell volume shell_volume15528 ų
Envelope diameter envelope_diameter57.0
Shell Rg shell_rg22.59
Envelope Rg envelope_rg17.23
Shape Rg shape_rg17.01
Total Rg total_rg17.91
Total atoms total_atoms1524
Residues n_residues202
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_real17.91
Rg uncertainty (real space) rg_real_error0.38
I(0) (real space) i0_real8.0310e+06
I(0) uncertainty (real space) i0_real_error1.0070e+05
Rg (reciprocal space) rg_reciprocal17.92
I(0) (reciprocal space) i0_reciprocal8031000.0000
Solution quality estimate total_estimate0.7234
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary20.3
Skewness Skewness skewness0.327
Kurtosis Kurtosis kurtosis-0.286
Angular range angular_range— – 0.4450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3163000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.789; Stabil: 1.000; Sysdev: 0.346; Positv: 1.000; Valcen: 0.998; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id4f74A00
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_id4f74B00
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)