9hlq

Crystal structure of human TRF1 TRFH domain in complex with compound 57

Method: X-RAY DIFFRACTION Dmax: 75.4 Å Quality: REASONABLE

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

Telomeric repeat-binding factor 1

Homo sapiens

UniProt P54274

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 48–268 Not recorded HHQ 4-iodanyl-3~{H}-pyridin-2-one × 2 EDO 1,2-ETHANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6;291 K;150 nanoliter of TRF1 TRFH at 28.6 mg/mL plus 150 nanoliter of a crystallisation solution consisting of 0.1 M MES pH 6, 50 mM CaCl2 and 35-45 % PEG 200, against 35 microliter of crystallisation solution. Resolution 2.50 Å R-free 0.297

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.

57 other PDB entries and 73 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TERF1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 4–224; UniProt 48–268

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 9hlq

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9hlq
Deposition date deposition_date2024-12-05
最后修订 last_revision2025-12-03
Structure title titleCrystal structure of human TRF1 TRFH domain in complex with compound 57
Keywords keywordsTelomere, Shelterin, Inhibitor, PROTEIN BINDING; PROTEIN BINDING
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.83
Radius of gyration Rg (electron density) rg_electron19.20
Forward intensity I(0) i08676840.00
Molecular weight molecular_weight21175.0 kDa
Excluded volume excluded_volume26253 ų
Envelope volume envelope_volume33098 ų
Hydration-shell volume shell_volume15592 ų
Envelope diameter envelope_diameter78.2
Shell Rg shell_rg24.09
Envelope Rg envelope_rg19.97
Shape Rg shape_rg19.26
Total Rg total_rg19.82
Total atoms total_atoms1476
Residues n_residues201
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 dmax75.4
Rg (real space) rg_real20.00
Rg uncertainty (real space) rg_real_error0.65
I(0) (real space) i0_real8.6770e+06
I(0) uncertainty (real space) i0_real_error1.3260e+05
Rg (reciprocal space) rg_reciprocal19.98
I(0) (reciprocal space) i0_reciprocal8677000.0000
Solution quality estimate total_estimate0.5948
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.2
Skewness Skewness skewness0.648
Kurtosis Kurtosis kurtosis0.331
Angular range angular_range— – 0.4000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1509000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.508; Stabil: 1.000; Sysdev: 0.210; Positv: 1.000; Valcen: 0.648; Smooth: 0.926

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)