1vh7

Crystal structure of a cyclase subunit of imidazolglycerolphosphate synthase

Method: X-RAY DIFFRACTION Dmax: 57.5 Å Quality: EXCELLENT

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

Imidazole glycerol phosphate synthase subunit hisF

Thermotoga maritima

UniProt Q9X0C6

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 2–253 Not recorded PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 1.90 Å R-free 0.224

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.

24 other PDB entries and 40 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HIS6_THEMA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 4–255; UniProt 2–253

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 1vh7

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1vh7
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1vh7
Deposition date deposition_date2003-12-01
Structure title titleCrystal structure of a cyclase subunit of imidazolglycerolphosphate synthase
Keywords keywordsstructural genomics, LYASE; LYASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.73
Radius of gyration Rg (electron density) rg_electron17.48
Forward intensity I(0) i012760800.00
Molecular weight molecular_weight27264.0 kDa
Excluded volume excluded_volume34406 ų
Envelope volume envelope_volume39018 ų
Hydration-shell volume shell_volume18416 ų
Envelope diameter envelope_diameter58.3
Shell Rg shell_rg23.89
Envelope Rg envelope_rg17.60
Shape Rg shape_rg17.47
Total Rg total_rg18.48
Total atoms total_atoms1920
Residues n_residues250
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 dmax57.5
Rg (real space) rg_real18.59
Rg uncertainty (real space) rg_real_error0.30
I(0) (real space) i0_real1.2760e+07
I(0) uncertainty (real space) i0_real_error1.5810e+05
Rg (reciprocal space) rg_reciprocal18.62
I(0) (reciprocal space) i0_reciprocal12760000.0000
Solution quality estimate total_estimate0.9001
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.4
Skewness Skewness skewness0.078
Kurtosis Kurtosis kurtosis-0.510
Angular range angular_range— – 0.4250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3203000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.910; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.983

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1vh7a_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.2 — Ribulose-phoshate binding barrel
Family Family familyc.1.2.1 — Histidine biosynthesis enzymes

CATH v4.4 (1 domains)

Domain ID domain_id1vh7A00
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I

8. Citations (1)

9. Files and Curves (10)