1b9f

MOBILITY OF AN HIV-1 INTEGRASE ACTIVE SITE LOOP IS CORRELATED WITH CATALYTIC ACTIVITY

Method: X-RAY DIFFRACTION Dmax: 50.8 Å Quality: GOOD

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

PROTEIN (INTEGRASE)

Human immunodeficiency virus type 1 (CLONE 12)

UniProt P12497

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 765–927 Fragment:CATALYTIC CORE DOMAIN Mutation:F185K, G140A, G149A CAC CACODYLATE ION × 2 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;pH 6.5 Resolution 1.70 Å R-free 0.280
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 765–927 Fragment:CATALYTIC CORE DOMAIN Mutation:F185K, G140A, G149A CAC CACODYLATE ION × 4 SO4 SULFATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;pH 6.5 Resolution 1.70 Å R-free 0.280

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.

163 other PDB entries and 210 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_HV1N5
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–163; UniProt 765–927

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 1b9f

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1b9f
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1b9f
Deposition date deposition_date1999-02-11
Structure title titleMOBILITY OF AN HIV-1 INTEGRASE ACTIVE SITE LOOP IS CORRELATED WITH CATALYTIC ACTIVITY
Keywords keywordsDNA INTEGRATION, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier16.27
Radius of gyration Rg (electron density) rg_electron15.13
Forward intensity I(0) i05359510.00
Molecular weight molecular_weight16497.0 kDa
Excluded volume excluded_volume20575 ų
Envelope volume envelope_volume23520 ų
Hydration-shell volume shell_volume13307 ų
Envelope diameter envelope_diameter51.7
Shell Rg shell_rg20.70
Envelope Rg envelope_rg15.45
Shape Rg shape_rg15.14
Total Rg total_rg16.15
Total atoms total_atoms1152
Residues n_residues151
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 dmax50.8
Rg (real space) rg_real16.17
Rg uncertainty (real space) rg_real_error0.26
I(0) (real space) i0_real5.3600e+06
I(0) uncertainty (real space) i0_real_error6.0740e+04
Rg (reciprocal space) rg_reciprocal16.18
I(0) (reciprocal space) i0_reciprocal5360000.0000
Solution quality estimate total_estimate0.8233
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary20.9
Skewness Skewness skewness0.151
Kurtosis Kurtosis kurtosis-0.409
Angular range angular_range— – 0.4900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha846800.0000
Real-space data points n_real_points79
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.903; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.000

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_idd1b9fa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamilyc.55.3 — Ribonuclease H-like
Family Family familyc.55.3.2 — Retroviral integrase, catalytic domain

CATH v4.4 (1 domains)

Domain ID domain_id1b9fA00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily10 — Ribonuclease H-like superfamily/Ribonuclease H

8. Citations (1)

9. Files and Curves (10)