1biu

HIV-1 INTEGRASE CORE DOMAIN COMPLEXED WITH MG++

Method: X-RAY DIFFRACTION Dmax: 81.2 Å Quality: GOOD

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

HIV-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 762–927 Chain B; UniProt 762–927 Fragment:CORE DOMAIN Mutation:W131E, F185K MG MAGNESIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7;PROTEIN WAS CRYSTALLIZED FROM 30% PEG 4000, 100 MM HEPES, PH 7.0, 5 MM DTT, 5 MM MGCL2 Resolution 2.50 Å R-free 0.265
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 762–927 Fragment:CORE DOMAIN Mutation:W131E, F185K MG MAGNESIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7;PROTEIN WAS CRYSTALLIZED FROM 30% PEG 4000, 100 MM HEPES, PH 7.0, 5 MM DTT, 5 MM MGCL2 Resolution 2.50 Å R-free 0.265

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 1–166; UniProt 762–927 Author chain B; PDBConstruct 1–166; UniProt 762–927 Author chain C; PDBConstruct 1–166; UniProt 762–927

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 1biu

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1biu
Deposition date deposition_date1998-06-19
Structure title titleHIV-1 INTEGRASE CORE DOMAIN COMPLEXED WITH MG++
Keywords keywordsDNA INTEGRATION, INTEGRASE, HIV, HYDROLASE, ASPARTYL PROTEASE, ENDONUCLEASE; DNA INTEGRATION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier25.78
Radius of gyration Rg (electron density) rg_electron24.97
Forward intensity I(0) i037764700.00
Molecular weight molecular_weight47743.0 kDa
Excluded volume excluded_volume60066 ų
Envelope volume envelope_volume75932 ų
Hydration-shell volume shell_volume26203 ų
Envelope diameter envelope_diameter84.3
Shell Rg shell_rg31.52
Envelope Rg envelope_rg24.86
Shape Rg shape_rg24.96
Total Rg total_rg25.79
Total atoms total_atoms4115
Residues n_residues439
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 dmax81.2
Rg (real space) rg_real25.81
Rg uncertainty (real space) rg_real_error0.55
I(0) (real space) i0_real3.7760e+07
I(0) uncertainty (real space) i0_real_error5.4560e+05
Rg (reciprocal space) rg_reciprocal25.80
I(0) (reciprocal space) i0_reciprocal37760000.0000
Solution quality estimate total_estimate0.8974
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.1
Skewness Skewness skewness0.373
Kurtosis Kurtosis kurtosis-0.456
Angular range angular_range— – 0.3100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7955000.0000
Real-space data points n_real_points63
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.896; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.989; Smooth: 0.987

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1biua_
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
Domain ID domain_idd1biub_
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
Domain ID domain_idd1biuc_
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 (3 domains)

Domain ID domain_id1biuA00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily10 — Ribonuclease H-like superfamily/Ribonuclease H
Domain ID domain_id1biuB00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily10 — Ribonuclease H-like superfamily/Ribonuclease H
Domain ID domain_id1biuC00
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 (2)

9. Files and Curves (10)