SAXSdb — 9wz3

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

Stellatatriene synthase

Aspergillus stellatus

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 × 18 PDB declaration: octadecameric（18） Consistent with protein copy count	Chain A； UniProt 1–714 Chain B； UniProt 1–714 Chain C； UniProt 1–714 Chain D； UniProt 1–714 Chain E； UniProt 1–714 Chain F； UniProt 1–714 Chain G； UniProt 1–714 Chain H； UniProt 1–714 Chain I； UniProt 1–714 Chain J； UniProt 1–714 Chain K； UniProt 1–714 Chain L； UniProt 1–714 Chain M； UniProt 1–714 Chain N； UniProt 1–714 Chain O； UniProt 1–714 Chain P； UniProt 1–714 Chain Q； UniProt 1–714 Chain R； UniProt 1–714	Not recorded	No other associated polymer	ELECTRON MICROSCOPY cryo-EM buffer：pH 8 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.19 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.

Other PDB	Difference from Current Entry 9WZ3	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
9X0F Cryo-EM structure of EvSS Deposited 2025-09-30	Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 18 PDB declaration: octadecameric	Chain A 1–714（714 aa） Chain B 1–714（714 aa） Chain C 1–714（714 aa） Chain D 1–714（714 aa） Chain E 1–714（714 aa） Chain F 1–714（714 aa） Chain G 1–714（714 aa） Chain H 1–714（714 aa） Chain I 1–714（714 aa） Chain J 1–714（714 aa） Chain K 1–714（714 aa） Chain L 1–714（714 aa） Chain M 1–714（714 aa） Chain N 1–714（714 aa） Chain O 1–714（714 aa） Chain P 1–714（714 aa） Chain Q 1–714（714 aa） Chain R 1–714（714 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.25 Å

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	STLSS_EMEVA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–714； UniProt 1–714 Author chain B； PDBConstruct 1–714； UniProt 1–714 Author chain C； PDBConstruct 1–714； UniProt 1–714 Author chain D； PDBConstruct 1–714； UniProt 1–714 Author chain E； PDBConstruct 1–714； UniProt 1–714 Author chain F； PDBConstruct 1–714； UniProt 1–714 Author chain G； PDBConstruct 1–714； UniProt 1–714 Author chain H； PDBConstruct 1–714； UniProt 1–714 Author chain I； PDBConstruct 1–714； UniProt 1–714 Author chain J； PDBConstruct 1–714； UniProt 1–714 Author chain K； PDBConstruct 1–714； UniProt 1–714 Author chain L； PDBConstruct 1–714； UniProt 1–714 Author chain M； PDBConstruct 1–714； UniProt 1–714 Author chain N； PDBConstruct 1–714； UniProt 1–714 Author chain O； PDBConstruct 1–714； UniProt 1–714 Author chain P； PDBConstruct 1–714； UniProt 1–714 Author chain Q； PDBConstruct 1–714； UniProt 1–714 Author chain R； PDBConstruct 1–714； UniProt 1–714

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	9wz3
Deposition date deposition_date	2025-09-29
Structure title title	Cryo-EM structure of the PT domain of EvSS
Keywords keywords	EvSS, Stellatatriene synthase, BIOSYNTHETIC PROTEIN; BIOSYNTHETIC PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier	71.42 Å
Radius of gyration Rg (electron density) rg_electron	72.08 Å
Forward intensity I(0) i0	5149450000.00
Molecular weight molecular_weight	612760.0 kDa
Excluded volume excluded_volume	770000 Å³
Envelope volume envelope_volume	1193300 Å³
Hydration-shell volume shell_volume	146050 Å³
Envelope diameter envelope_diameter	242.0 Å
Shell Rg shell_rg	64.06 Å
Envelope Rg envelope_rg	69.56 Å
Shape Rg shape_rg	72.09 Å
Total Rg total_rg	71.92 Å
Total atoms total_atoms	43146
Residues n_residues	5364
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	210.4 Å
Rg (real space) rg_real	71.43 Å
Rg uncertainty (real space) rg_real_error	1.06 Å
I(0) (real space) i0_real	5.1390e+09
I(0) uncertainty (real space) i0_real_error	9.7680e+07
Rg (reciprocal space) rg_reciprocal	70.31 Å
I(0) (reciprocal space) i0_reciprocal	5135000000.0000
Solution quality estimate total_estimate	0.8269
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	76.5 Å
Skewness Skewness skewness	0.485
Kurtosis Kurtosis kurtosis	-0.434
Angular range angular_range	— – 0.1100 Å⁻¹
Current regularization parameter α current_alpha	0.0192
Highest regularization parameter α highest_alpha	246700000.0000
Real-space data points n_real_points	23
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.911; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.011

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (1)

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8. Citations (1)

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	3.190 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	3.19 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	377521

Description description	Stellatatriene synthase
Molecular weight formula_weight	80803.0 kDa
EC 编号 ec_number	2.5.1.-,4.2.3.178
Source method src_method	man
Copy count entity_count	18

Cryo-EM structure of the PT domain of EvSS

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

Stellatatriene synthase

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

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

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R
Atom count atom_count	43146

来源生物 organism	Aspergillus stellatus
NCBI Class编号 ncbi_taxonomy_id	1549217
宿主生物 host_organism	Escherichia coli

fit	/app/data/saxs_computation/wz/9wz3/9wz3.fit
pddf	/app/data/pr_computation/wz/9wz3/9wz3.pr.out
profile	/app/data/saxs_computation/wz/9wz3/9wz3.dat