4qag

Structure of a dihydroxycoumarin active-site inhibitor in complex with the RNASE H domain of HIV-1 reverse transcriptase

Method: X-RAY DIFFRACTION Dmax: 62.6 Å Quality: EXCELLENT

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

Reverse transcriptase/ribonuclease H

Human immunodeficiency virus type 1

UniProt P03366

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 1024–1156 Fragment:UNP residues 1024-1156 MN MANGANESE (II) ION × 2 F95 (7,8-dihydroxy-2-oxo-2H-chromen-4-yl)acetic acid × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.2;293 K;100 mM Bicine pH 8.2, 10 mM Manganese Sulfate, 1 mM Sodium Azide, 9% PEG 3350, combined with equal volume of 10 mM Tris pH 8.0, 75 mM NaCl, 20 mg/mL (1.34 mM) RNase H, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.71 Å R-free 0.190
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1024–1156 Fragment:UNP residues 1024-1156 MN MANGANESE (II) ION × 2 F95 (7,8-dihydroxy-2-oxo-2H-chromen-4-yl)acetic acid × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.2;293 K;100 mM Bicine pH 8.2, 10 mM Manganese Sulfate, 1 mM Sodium Azide, 9% PEG 3350, combined with equal volume of 10 mM Tris pH 8.0, 75 mM NaCl, 20 mg/mL (1.34 mM) RNase H, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.71 Å R-free 0.190
3 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1024–1156 Chain B; UniProt 1024–1156 Fragment:UNP residues 1024-1156 MN MANGANESE (II) ION × 4 F95 (7,8-dihydroxy-2-oxo-2H-chromen-4-yl)acetic acid × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.2;293 K;100 mM Bicine pH 8.2, 10 mM Manganese Sulfate, 1 mM Sodium Azide, 9% PEG 3350, combined with equal volume of 10 mM Tris pH 8.0, 75 mM NaCl, 20 mg/mL (1.34 mM) RNase H, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.71 Å R-free 0.190

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.

383 other PDB entries and 467 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_HV1B1
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–133; UniProt 1024–1156 Author chain B; PDBConstruct 1–133; UniProt 1024–1156

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 4qag

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4qag
Deposition date deposition_date2014-05-04
Structure title titleStructure of a dihydroxycoumarin active-site inhibitor in complex with the RNASE H domain of HIV-1 reverse transcriptase
Keywords keywords;RNASE H INHIBITOR, STRUCTURE-BASED DRUG DESIGN, ACTIVE SITE, TRANSFERASE, DIHYDROXYCOUMARIN ANALOGS, DIHYDROXY-BENZOPYRONE DERIVATIVES, DIVALENT CATION CHELATOR, AIDS, REVERSE TRANSCRIPTASE, PROTEIN-INHIBITOR COMPLEX, HYDROLASE-HYDROLASE INHIBITOR complex ;; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.87
Radius of gyration Rg (electron density) rg_electron18.84
Forward intensity I(0) i015502900.00
Molecular weight molecular_weight30088.0 kDa
Excluded volume excluded_volume37906 ų
Envelope volume envelope_volume44556 ų
Hydration-shell volume shell_volume19706 ų
Envelope diameter envelope_diameter62.8
Shell Rg shell_rg25.02
Envelope Rg envelope_rg18.84
Shape Rg shape_rg18.82
Total Rg total_rg19.80
Total atoms total_atoms2114
Residues n_residues266
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 dmax62.6
Rg (real space) rg_real19.73
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real1.5500e+07
I(0) uncertainty (real space) i0_real_error1.9070e+05
Rg (reciprocal space) rg_reciprocal19.75
I(0) (reciprocal space) i0_reciprocal15500000.0000
Solution quality estimate total_estimate0.9024
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.7
Skewness Skewness skewness0.114
Kurtosis Kurtosis kurtosis-0.509
Angular range angular_range— – 0.4000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2199000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.916; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.980

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4qaga_
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.55.3.1 — Ribonuclease H
Domain ID domain_idd4qagb_
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.55.3.1 — Ribonuclease H

CATH v4.4 (2 domains)

Domain ID domain_id4qagA00
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_id4qagB00
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 (5)

9. Files and Curves (10)