4faf

Substrate CA/p2 in Complex with a Human Immunodeficiency Virus Type 1 Protease Variant

Method: X-RAY DIFFRACTION Dmax: 63.9 Å Quality: REASONABLE

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

HIV-1 protease

Human immunodeficiency virus 1

UniProt Q000H7

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 1–99 Chain B; UniProt 1–99 Mutation:D25N, D35E, I36V, M46L substrate CA/p2 peptide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;298 K;0.1 M MES, 2.4 M ammonium sulfate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 2.10 Å R-free 0.240

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.

20 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q000H7_9HIV1
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–99; UniProt 1–99 Author chain B; PDBConstruct 1–99; UniProt 1–99

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 4faf

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4faf
Deposition date deposition_date2012-05-22
Structure title titleSubstrate CA/p2 in Complex with a Human Immunodeficiency Virus Type 1 Protease Variant
Keywords keywordsprotease, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.18
Radius of gyration Rg (electron density) rg_electron17.27
Forward intensity I(0) i08332190.00
Molecular weight molecular_weight22389.0 kDa
Excluded volume excluded_volume28633 ų
Envelope volume envelope_volume32322 ų
Hydration-shell volume shell_volume15986 ų
Envelope diameter envelope_diameter67.2
Shell Rg shell_rg23.11
Envelope Rg envelope_rg17.72
Shape Rg shape_rg17.29
Total Rg total_rg18.22
Total atoms total_atoms1574
Residues n_residues205
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 dmax63.9
Rg (real space) rg_real18.19
Rg uncertainty (real space) rg_real_error0.27
I(0) (real space) i0_real8.3310e+06
I(0) uncertainty (real space) i0_real_error1.1260e+05
Rg (reciprocal space) rg_reciprocal18.18
I(0) (reciprocal space) i0_reciprocal8332000.0000
Solution quality estimate total_estimate0.6170
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary19.9
Skewness Skewness skewness0.426
Kurtosis Kurtosis kurtosis-0.101
Angular range angular_range— – 0.4400 −1
Current regularization parameter α current_alpha0.1893
Highest regularization parameter α highest_alpha4841000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.680; Stabil: 1.000; Sysdev: 0.000; Positv: 1.000; Valcen: 0.979; Smooth: 0.997

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_idd4fafa_
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_idd4fafb_
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_id4fafA00
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_id4fafB00
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)