9mxq

Cryo-EM Structure of HIV-1 Reverse Transcriptase p66 Homodimer

Method: ELECTRON MICROSCOPY Dmax: 111.5 Å Quality: GOOD

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

Reverse transcriptase/ribonuclease H

Human immunodeficiency virus 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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 600–1154 Chain B; UniProt 600–1154 Not recorded No other associated polymer ELECTRON MICROSCOPY cryo-EM buffer:pH 7;50mM Tris pH 7.0, 25mM NaCl, 5% Glycerol, 1mM TCEP cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.85 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.

383 other PDB entries and 469 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 3–557; UniProt 600–1154 Author chain B; PDBConstruct 3–557; UniProt 600–1154

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 9mxq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9mxq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9mxq
Deposition date deposition_date2025-01-20
Structure title titleCryo-EM Structure of HIV-1 Reverse Transcriptase p66 Homodimer
Keywords keywordsREVERSE TRANSCRIPTASE, ANTIVIRAL, DRUG DESIGN, HIV-1, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier34.07
Radius of gyration Rg (electron density) rg_electron33.42
Forward intensity I(0) i0142759000.00
Molecular weight molecular_weight100840.0 kDa
Excluded volume excluded_volume128540 ų
Envelope volume envelope_volume175890 ų
Hydration-shell volume shell_volume43847 ų
Envelope diameter envelope_diameter114.8
Shell Rg shell_rg40.27
Envelope Rg envelope_rg33.09
Shape Rg shape_rg33.37
Total Rg total_rg34.17
Total atoms total_atoms7138
Residues n_residues871
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 dmax111.5
Rg (real space) rg_real34.02
Rg uncertainty (real space) rg_real_error0.78
I(0) (real space) i0_real1.4280e+08
I(0) uncertainty (real space) i0_real_error2.0780e+06
Rg (reciprocal space) rg_reciprocal34.06
I(0) (reciprocal space) i0_reciprocal142800000.0000
Solution quality estimate total_estimate0.8981
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary38.8
Skewness Skewness skewness0.252
Kurtosis Kurtosis kurtosis-0.480
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha22100000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.915; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.927

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)