2itg

CATALYTIC DOMAIN OF HIV-1 INTEGRASE: ORDERED ACTIVE SITE IN THE F185H CONSTRUCT

Method: X-RAY DIFFRACTION Dmax: 57.8 Å Quality: GOOD

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

HUMAN IMMUNODEFICIENCY VIRUS-1 INTEGRASE

Human immunodeficiency virus 1

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 765–927 Fragment:CATALYTIC CORE DOMAIN 50 - 212 Mutation:F185H No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;3-9% PEG 8000, 0.4M AMMONIUM SULFATE, 0.1M SODIUM CACODYLATE PH 6.5 Resolution 2.60 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.

163 other PDB entries and 211 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 2itg

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2itg
Deposition date deposition_date1996-09-13
Structure title titleCATALYTIC DOMAIN OF HIV-1 INTEGRASE: ORDERED ACTIVE SITE IN THE F185H CONSTRUCT
Keywords keywordsDNA INTEGRATION, AIDS, POLYPROTEIN, HYDROLASE, ENDONUCLEASE, POLYNUCLEOTIDYL TRANSFERASE, DNA BINDING (VIRAL); DNA INTEGRATION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.39
Radius of gyration Rg (electron density) rg_electron16.26
Forward intensity I(0) i05850550.00
Molecular weight molecular_weight17492.0 kDa
Excluded volume excluded_volume21944 ų
Envelope volume envelope_volume26444 ų
Hydration-shell volume shell_volume14063 ų
Envelope diameter envelope_diameter57.9
Shell Rg shell_rg21.77
Envelope Rg envelope_rg16.72
Shape Rg shape_rg16.27
Total Rg total_rg17.27
Total atoms total_atoms1233
Residues n_residues160
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 dmax57.8
Rg (real space) rg_real17.32
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real5.8510e+06
I(0) uncertainty (real space) i0_real_error7.3570e+04
Rg (reciprocal space) rg_reciprocal17.33
I(0) (reciprocal space) i0_reciprocal5851000.0000
Solution quality estimate total_estimate0.8047
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary21.3
Skewness Skewness skewness0.236
Kurtosis Kurtosis kurtosis-0.293
Angular range angular_range— – 0.4600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1183000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.821; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2itga_
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_id2itgA00
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 (3)

9. Files and Curves (10)