SAXSdb — 3bw8

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

Mono-ADP-ribosyltransferase C3

Clostridium limosum

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	SULFATE ION × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ARC3_CLOLM
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 13–217； UniProt 46–250 Author chain B； PDBConstruct 13–217； UniProt 46–250

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	3bw8
Deposition date deposition_date	2008-01-08
Structure title title	Crystal structure of the Clostridium limosum C3 exoenzyme
Keywords keywords	;C3LIM, EXOENZYME C3, ADP-RIBOSYLTRANSFERASE, RHO, RIBOSYLATING TOXIN, ARTT, C3BOT, C3CER, C3STAU, Glycosyltransferase, NAD, Secreted, TRANSFERASE ;; TRANSFERASE
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.

3bw8__assembly_1__model_1

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

Download this curve (.dat)

3bw8__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3bw8__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	18.26 Å
Rg (electron density)	17.13 Å
Total Rg	18.17 Å
Atom count	1629
Residues	205
Excluded volume	29052 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3bw8__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3bw8__assembly_2__model_1`	monomeric （1）	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 (3)

Entity 1 Entity 1 polymer

Description description	Mono-ADP-ribosyltransferase C3
Molecular weight formula_weight	23909.0 kDa
EC 编号 ec_number	2.4.2.-
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3439

GSPGISGGGGGSPYADSFKEFTNIDEARAWGDKQFAKYKLSSSEKNALTIYTRNAARINGPLRANQGNTNGLPADIRKEVEQIDKSFTKMQTPENIILFRGDDPGYLGPDFENTILNRDGTINKAVFEQVKLRFKGKDRKEYGYISTSLVNGSAFAGRPIITKFKVLDGSKAGYIEPISTFKGQLEVLLPRSSTYTISDMQIAPNNKQIIITALLKR

Source Source

Source organism organism	Clostridium limosum
NCBI taxonomy ID ncbi_taxonomy_id	1536
Host organism host_organism	Escherichia coli BL21

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	219

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d3bw8a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.166 — ADP-ribosylation
Superfamily Superfamily superfamily	d.166.1 — ADP-ribosylation
Family Family family	d.166.1.1 — ADP-ribosylating toxins

Domain ID domain_id	d3bw8b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.166 — ADP-ribosylation
Superfamily Superfamily superfamily	d.166.1 — ADP-ribosylation
Family Family family	d.166.1.1 — ADP-ribosylating toxins

CATH v4.4 (2 domains)

Domain ID domain_id	3bw8A00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	176 — Toxin ADP-ribosyltransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Toxin ADP-ribosyltransferase; Chain A, domain 1

Domain ID domain_id	3bw8B00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	176 — Toxin ADP-ribosyltransferase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Toxin ADP-ribosyltransferase; Chain A, domain 1

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Unit-cell length a length_a	40.000 Å
Unit-cell length b length_b	91.540 Å
Unit-cell length c length_c	70.850 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	106.45 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	11.800 Å
R factor r_factor	0.1969
R_work r_work	0.1950
R_free r_free	0.2336

Crystal structure of the Clostridium limosum C3 exoenzyme

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

Mono-ADP-ribosyltransferase C3

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

3bw8__assembly_1__model_1

3bw8__assembly_1__model_1 | I(q)

3bw8__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Crystal structure of the Clostridium limosum C3 exoenzyme

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

Mono-ADP-ribosyltransferase C3

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

3bw8__assembly_1__model_1

3bw8__assembly_1__model_1 | I(q)

3bw8__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)