SAXSdb — 3h50

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

Tetracenomycin polyketide synthesis protein

Xanthomonas campestris pv. campestris

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	ZINC ION × 8 ACETATE ION × 4 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8PBM3_XANCP
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–114； UniProt 1–113

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	3h50
Deposition date deposition_date	2009-04-21
Structure title title	CRYSTAL STRUCTURE OF A TETRACENOMYCIN POLYKETIDE SYNTHESIS PROTEIN (TCMJ) FROM XANTHOMONAS CAMPESTRIS PV. CAMPESTRIS AT 1.60 A RESOLUTION
Keywords keywords	;TETRACENOMYCIN POLYKETIDE SYNTHESIS PROTEIN, STRUCTURAL GENOMICS, JOINT CENTER FOR STRUCTURAL GENOMICS, JCSG, PROTEIN STRUCTURE INITIATIVE, PSI-2, BIOSYNTHETIC PROTEIN ;; BIOSYNTHETIC PROTEIN
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

3h50__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3h50__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3h50__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	18.27 Å
Rg (electron density)	16.81 Å
Total Rg	17.84 Å
Atom count	1734
Residues	224
Excluded volume	30432 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3h50__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Tetracenomycin polyketide synthesis protein
Molecular weight formula_weight	12329.3 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1031

GMQYATLELNNAFKVLFSLRQVQAAEMVIAPGDREGGPDNRHRGADQWLFVVDGAGEAIVDGHTQALQAGSLIAIERGQAHEIRNTGDTPLKTVNFYHPPAYDAQGEPLPAGEG

Source Source

Source organism organism	Xanthomonas campestris pv. campestris
NCBI taxonomy ID ncbi_taxonomy_id	340
Host organism host_organism	Escherichia Coli

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	ACETATE ION
Molecular weight formula_weight	59.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	152

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id	3h50A01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	10 — Jelly Rolls

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Unit-cell length a length_a	48.920 Å
Unit-cell length b length_b	72.030 Å
Unit-cell length c length_c	32.750 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	110.76 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	1.600 Å
Low-resolution limit resolution_low	28.502 Å
R factor r_factor	0.1840
R_work r_work	0.1820
R_free r_free	0.2200

CRYSTAL STRUCTURE OF A TETRACENOMYCIN POLYKETIDE SYNTHESIS PROTEIN (TCMJ) FROM XANTHOMONAS CAMPESTRIS PV. CAMPESTRIS AT 1.60 A RESOLUTION

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

Tetracenomycin polyketide synthesis protein

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

3h50__assembly_1__model_1

3h50__assembly_1__model_1 | I(q)

3h50__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF A TETRACENOMYCIN POLYKETIDE SYNTHESIS PROTEIN (TCMJ) FROM XANTHOMONAS CAMPESTRIS PV. CAMPESTRIS AT 1.60 A RESOLUTION

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

Tetracenomycin polyketide synthesis protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

3h50__assembly_1__model_1

3h50__assembly_1__model_1 | I(q)

3h50__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

7. Citations (1)