2bhv

Structure of ComB10 of the Com Type IV secretion system of Helicobacter pylori

Method: X-RAY DIFFRACTION

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

COMB10

HELICOBACTER PYLORI

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	O24883
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 14–246； UniProt 1–233 Author chain B； PDBConstruct 14–246； UniProt 1–233 Author chain C； PDBConstruct 14–246； UniProt 1–233 Author chain D； PDBConstruct 14–246； UniProt 1–233 Author chain E； PDBConstruct 14–246； UniProt 1–233 Author chain F； PDBConstruct 14–246； UniProt 1–233

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	2bhv
Deposition date deposition_date	2005-01-18
Structure title title	Structure of ComB10 of the Com Type IV secretion system of Helicobacter pylori
Keywords keywords	BACTERIAL PROTEIN, BACTERIAL TYPE IV SECRETION; BACTERIAL 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.

2bhv__assembly_1__model_1

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

Download this curve (.dat)

2bhv__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2bhv__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	31.90 Å
Rg (electron density)	32.58 Å
Total Rg	32.71 Å
Atom count	2915
Residues	381
Excluded volume	52892 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2bhv__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2bhv__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`2bhv__assembly_3__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 (1)

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6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

Domain ID domain_id	2bhvA01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	128 — Lipocalin
Homologous superfamily homologous superfamily	260 — Type IV secretion system, VirB10/TraB/TrbI

Domain ID domain_id	2bhvA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	160 —

Domain ID domain_id	2bhvB01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	128 — Lipocalin
Homologous superfamily homologous superfamily	260 — Type IV secretion system, VirB10/TraB/TrbI

Domain ID domain_id	2bhvB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	160 —

Domain ID domain_id	2bhvC01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	128 — Lipocalin
Homologous superfamily homologous superfamily	260 — Type IV secretion system, VirB10/TraB/TrbI

Domain ID domain_id	2bhvC02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	160 —

Domain ID domain_id	2bhvD01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	128 — Lipocalin
Homologous superfamily homologous superfamily	260 — Type IV secretion system, VirB10/TraB/TrbI

Domain ID domain_id	2bhvD02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	160 —

Domain ID domain_id	2bhvE01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	128 — Lipocalin
Homologous superfamily homologous superfamily	260 — Type IV secretion system, VirB10/TraB/TrbI

Domain ID domain_id	2bhvE02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	160 —

Domain ID domain_id	2bhvF01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	128 — Lipocalin
Homologous superfamily homologous superfamily	260 — Type IV secretion system, VirB10/TraB/TrbI

Domain ID domain_id	2bhvF02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily	160 —

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Unit-cell length a length_a	69.735 Å
Unit-cell length b length_b	139.411 Å
Unit-cell length c length_c	168.442 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	24

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	3.000 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2590
R_work r_work	0.2570
R_free r_free	0.2930

Description description	COMB10
Molecular weight formula_weight	27183.6 kDa
Source method src_method	man
Copy count entity_count	6

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	8759

Structure of ComB10 of the Com Type IV secretion system of Helicobacter pylori

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

COMB10

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

2bhv__assembly_1__model_1

2bhv__assembly_1__model_1 | I(q)

2bhv__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

7. Citations (1)

Source organism organism	HELICOBACTER PYLORI
NCBI taxonomy ID ncbi_taxonomy_id	210
Host organism host_organism	ESCHERICHIA COLI

Structure of ComB10 of the Com Type IV secretion system of Helicobacter pylori

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

COMB10

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

2bhv__assembly_1__model_1

2bhv__assembly_1__model_1 | I(q)

2bhv__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

7. Citations (1)