2fiv

Crystal structure of feline immunodeficiency virus protease complexed with a substrate

Method: X-RAY DIFFRACTION Dmax: 63.0 Å Quality: GOOD

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

FELINE IMMUNODEFICIENCY VIRUS PROTEASE

Feline immunodeficiency virus

UniProt P16088

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 39–154 Chain B; UniProt 39–154 Mutation:D30N ACE-ALN-VAL-STA-GLU-ALN-NH2 × 2 SO4 SULFATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.6;PROTEIN WAS CRYSTALLIZED FROM 2.0 MOLAR AMMONIUM SULFATE, 0.1 M SODIUM ACETATE PH=5.6. Resolution 2.00 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.

19 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_FIVPE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–116; UniProt 39–154 Author chain B; PDBConstruct 1–116; UniProt 39–154

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 2fiv

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2fiv
Deposition date deposition_date1997-07-21
Structure title titleCrystal structure of feline immunodeficiency virus protease complexed with a substrate
Keywords keywordsHYDROLASE-HYDROLASE INHIBITOR COMPLEX, ACID PROTEINASE-SUBSTRATE, ASPARTIC PROTEASE, RETROVIRAL PROTEASE; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.10
Radius of gyration Rg (electron density) rg_electron17.83
Forward intensity I(0) i012512300.00
Molecular weight molecular_weight27127.0 kDa
Excluded volume excluded_volume34183 ų
Envelope volume envelope_volume36516 ų
Hydration-shell volume shell_volume17322 ų
Envelope diameter envelope_diameter66.0
Shell Rg shell_rg23.98
Envelope Rg envelope_rg18.19
Shape Rg shape_rg17.82
Total Rg total_rg18.74
Total atoms total_atoms1904
Residues n_residues230
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 dmax63.0
Rg (real space) rg_real19.08
Rg uncertainty (real space) rg_real_error0.44
I(0) (real space) i0_real1.2510e+07
I(0) uncertainty (real space) i0_real_error1.4450e+05
Rg (reciprocal space) rg_reciprocal19.08
I(0) (reciprocal space) i0_reciprocal12510000.0000
Solution quality estimate total_estimate0.8030
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary21.9
Skewness Skewness skewness0.353
Kurtosis Kurtosis kurtosis-0.248
Angular range angular_range— – 0.4150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3176000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.815; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2fiva_
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_idd2fivb_
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_id2fivA00
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_id2fivB00
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)