4ck2

Interrogating HIV integrase for compounds that bind- a SAMPL challenge

Method: X-RAY DIFFRACTION Dmax: 61.4 Å Quality: GOOD

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

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 50–212 Chain B; UniProt 50–212 Fragment:CATALYTIC DOMAIN, RESIDUES 50-212 Mutation:YES SO4 SULFATE ION × 6 ACT ACETATE ION × 4 NVU 2-(1,2-benzoxazol-3-yl)ethanoic acid × 4 X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.5;THE PROTEIN WAS CONCENTRATED TO 5.5 MG/ML IN 40 MM TRIS PH 8.0, 250 MM NACL, 30 MM MGCL2, 5 MM DTT AND SET UP IN A 1:1 RATIO WITH 1.6 TO 2.0 M AMMONIUM SULFATE, 100 MM SODIUM ACETATE BUFFER PH 5.0 TO 5.5. Resolution 1.85 Å R-free 0.211

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 21–183; UniProt 50–212 Author chain B; PDBConstruct 21–183; UniProt 50–212

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 4ck2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4ck2
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4ck2
Deposition date deposition_date2013-12-24
Structure title titleInterrogating HIV integrase for compounds that bind- a SAMPL challenge
Keywords keywordsTRANSFERASE, STRUCTURE BASED DRUG DESIGN; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.82
Radius of gyration Rg (electron density) rg_electron18.52
Forward intensity I(0) i021223700.00
Molecular weight molecular_weight34457.0 kDa
Excluded volume excluded_volume42822 ų
Envelope volume envelope_volume49593 ų
Hydration-shell volume shell_volume21647 ų
Envelope diameter envelope_diameter63.4
Shell Rg shell_rg25.62
Envelope Rg envelope_rg18.81
Shape Rg shape_rg18.49
Total Rg total_rg19.55
Total atoms total_atoms2421
Residues n_residues300
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 dmax61.4
Rg (real space) rg_real19.64
Rg uncertainty (real space) rg_real_error0.25
I(0) (real space) i0_real2.1220e+07
I(0) uncertainty (real space) i0_real_error2.3130e+05
Rg (reciprocal space) rg_reciprocal19.67
I(0) (reciprocal space) i0_reciprocal21220000.0000
Solution quality estimate total_estimate0.8905
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.8
Skewness Skewness skewness0.072
Kurtosis Kurtosis kurtosis-0.421
Angular range angular_range— – 0.4000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6171000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.868; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.985

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4ck2a_
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_idd4ck2b_
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_id4ck2A00
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_id4ck2B00
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)