1biz

HIV-1 INTEGRASE CORE DOMAIN

Method: X-RAY DIFFRACTION Dmax: 58.5 Å Quality: GOOD

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

HIV-1 INTEGRASE

Human immunodeficiency virus 1

UniProt Q76353

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, RESIDUES 54 - 212 Mutation:C56S, F185K CAC CACODYLATE ION × 4 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 Resolution 1.95 Å R-free 0.253

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.

103 other PDB entries and 114 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q76353_9HIV1
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

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 1biz

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1biz
Deposition date deposition_date1998-06-21
Structure title titleHIV-1 INTEGRASE CORE DOMAIN
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_guinier19.36
Radius of gyration Rg (electron density) rg_electron17.99
Forward intensity I(0) i017618400.00
Molecular weight molecular_weight31680.0 kDa
Excluded volume excluded_volume39626 ų
Envelope volume envelope_volume46115 ų
Hydration-shell volume shell_volume20730 ų
Envelope diameter envelope_diameter59.6
Shell Rg shell_rg24.91
Envelope Rg envelope_rg18.26
Shape Rg shape_rg17.98
Total Rg total_rg19.01
Total atoms total_atoms2216
Residues n_residues290
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 dmax58.5
Rg (real space) rg_real19.17
Rg uncertainty (real space) rg_real_error0.18
I(0) (real space) i0_real1.7620e+07
I(0) uncertainty (real space) i0_real_error1.7710e+05
Rg (reciprocal space) rg_reciprocal19.20
I(0) (reciprocal space) i0_reciprocal17620000.0000
Solution quality estimate total_estimate0.8970
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.4
Skewness Skewness skewness0.004
Kurtosis Kurtosis kurtosis-0.525
Angular range angular_range— – 0.4100 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha6898000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.897; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.975; Smooth: 0.992

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_idd1biza_
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_idd1bizb_
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 (2 domains)

Domain ID domain_id1bizA00
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_id1bizB00
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)