9z1u

Backbone Modification in the GCN4 Leucine Zipper: beta3-Lys at position 28

Method: X-RAY DIFFRACTION Dmax: 57.1 Å Quality: GOOD

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

General control transcription factor GCN4

OrganismNot specified

UniProt P03069

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 249–281 Chain B; UniProt 249–281 Fragment:leucine zipper domain Non-standard monomer:Yes (specific site not provided by mmCIF) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.6;298 K;0.2 M sodium acetate pH 4.6, 0.1 M sodium citrate pH 4.6, 10% w/v PEG 3350 Resolution 1.50 Å R-free 0.206

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.

162 other PDB entries and 200 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GCN4_YEAST
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–34; UniProt 249–281 Author chain B; PDBConstruct 2–34; UniProt 249–281

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 9z1u

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9z1u
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9z1u
Deposition date deposition_date2025-11-04
Structure title titleBackbone Modification in the GCN4 Leucine Zipper: beta3-Lys at position 28
Keywords keywordscoiled coil, backbone modification, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier15.32
Radius of gyration Rg (electron density) rg_electron14.91
Forward intensity I(0) i01282400.00
Molecular weight molecular_weight7842.0 kDa
Excluded volume excluded_volume9966 ų
Envelope volume envelope_volume11857 ų
Hydration-shell volume shell_volume7813 ų
Envelope diameter envelope_diameter54.2
Shell Rg shell_rg18.63
Envelope Rg envelope_rg15.42
Shape Rg shape_rg14.85
Total Rg total_rg15.98
Total atoms total_atoms553
Residues n_residues63
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 dmax57.1
Rg (real space) rg_real15.56
Rg uncertainty (real space) rg_real_error0.61
I(0) (real space) i0_real1.2820e+06
I(0) uncertainty (real space) i0_real_error1.6230e+04
Rg (reciprocal space) rg_reciprocal15.54
I(0) (reciprocal space) i0_reciprocal1282000.0000
Solution quality estimate total_estimate0.7571
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary13.7
Skewness Skewness skewness0.604
Kurtosis Kurtosis kurtosis-0.156
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha198200.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.508; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.327; Smooth: 0.989

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)