1s7m

Crystal Structure of HiaBD1

Method: X-RAY DIFFRACTION

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

Hia

Haemophilus influenzae

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	water × 3	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 3	water × 3	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 6	water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q48152_HAEIN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 8–166； UniProt 548–706 Author chain B； PDBConstruct 8–166； UniProt 548–706 Author chain C； PDBConstruct 8–166； UniProt 548–706 Author chain D； PDBConstruct 8–166； UniProt 548–706 Author chain E； PDBConstruct 8–166； UniProt 548–706 Author chain F； PDBConstruct 8–166； UniProt 548–706

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	1s7m
Deposition date deposition_date	2004-01-29
Structure title title	Crystal Structure of HiaBD1
Keywords keywords	adhesion, homotrimer, autotransporter, CELL ADHESION; CELL ADHESION
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.

1s7m__assembly_3__model_1

Assembly 3 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1s7m__assembly_3__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1s7m__assembly_3__model_1 | P(r) · Pending

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

Rg（Guinier）	43.73 Å
Rg (electron density)	44.76 Å
Total Rg	44.43 Å
Atom count	6873
Residues	944
Excluded volume	120050 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1s7m__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1s7m__assembly_2__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1s7m__assembly_3__model_1`	hexameric （6）	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 (2)

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1s7ma_
Class class	b — All beta proteins
Fold Fold fold	b.144 — Trimeric adhesin
Superfamily Superfamily superfamily	b.144.1 — Trimeric adhesin
Family Family family	b.144.1.1 — Trimeric adhesin

Domain ID domain_id	d1s7mb_
Class class	b — All beta proteins
Fold Fold fold	b.144 — Trimeric adhesin
Superfamily Superfamily superfamily	b.144.1 — Trimeric adhesin
Family Family family	b.144.1.1 — Trimeric adhesin

Domain ID domain_id	d1s7mc_
Class class	b — All beta proteins
Fold Fold fold	b.144 — Trimeric adhesin
Superfamily Superfamily superfamily	b.144.1 — Trimeric adhesin
Family Family family	b.144.1.1 — Trimeric adhesin

Domain ID domain_id	d1s7md_
Class class	b — All beta proteins
Fold Fold fold	b.144 — Trimeric adhesin
Superfamily Superfamily superfamily	b.144.1 — Trimeric adhesin
Family Family family	b.144.1.1 — Trimeric adhesin

Domain ID domain_id	d1s7me_
Class class	b — All beta proteins
Fold Fold fold	b.144 — Trimeric adhesin
Superfamily Superfamily superfamily	b.144.1 — Trimeric adhesin
Family Family family	b.144.1.1 — Trimeric adhesin

Domain ID domain_id	d1s7mf_
Class class	b — All beta proteins
Fold Fold fold	b.144 — Trimeric adhesin
Superfamily Superfamily superfamily	b.144.1 — Trimeric adhesin
Family Family family	b.144.1.1 — Trimeric adhesin

CATH v4.4 (18 domains)

Domain ID domain_id	1s7mA01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	70 — Ubiquitin Ligase Nedd4; Chain: W;
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1780 — Trimeric adhesin
Homologous superfamily homologous superfamily	10 — Trimeric adhesin

Domain ID domain_id	1s7mA03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mB01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	70 — Ubiquitin Ligase Nedd4; Chain: W;
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1780 — Trimeric adhesin
Homologous superfamily homologous superfamily	10 — Trimeric adhesin

Domain ID domain_id	1s7mB03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mC01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	70 — Ubiquitin Ligase Nedd4; Chain: W;
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mC02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1780 — Trimeric adhesin
Homologous superfamily homologous superfamily	10 — Trimeric adhesin

Domain ID domain_id	1s7mC03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mD01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	70 — Ubiquitin Ligase Nedd4; Chain: W;
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mD02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1780 — Trimeric adhesin
Homologous superfamily homologous superfamily	10 — Trimeric adhesin

Domain ID domain_id	1s7mD03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mE01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	70 — Ubiquitin Ligase Nedd4; Chain: W;
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mE02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1780 — Trimeric adhesin
Homologous superfamily homologous superfamily	10 — Trimeric adhesin

Domain ID domain_id	1s7mE03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mF01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	70 — Ubiquitin Ligase Nedd4; Chain: W;
Homologous superfamily homologous superfamily	140 —

Domain ID domain_id	1s7mF02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1780 — Trimeric adhesin
Homologous superfamily homologous superfamily	10 — Trimeric adhesin

Domain ID domain_id	1s7mF03
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	140 —

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Unit-cell length a length_a	83.582 Å
Unit-cell length b length_b	86.204 Å
Unit-cell length c length_c	89.119 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	99.08 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	12

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

Resolution resolution	2.100 Å
Low-resolution limit resolution_low	44.000 Å
R factor r_factor	0.2170
R_work r_work	0.2170
R_free r_free	0.2540

Description description	Hia
Molecular weight formula_weight	18022.6 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	7355

Crystal Structure of HiaBD1

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

Hia

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

1s7m__assembly_3__model_1

1s7m__assembly_3__model_1 | I(q)

1s7m__assembly_3__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (6 domains)

CATH v4.4 (18 domains)

7. Citations (1)

Source organism organism	Haemophilus influenzae
NCBI taxonomy ID ncbi_taxonomy_id	727
Host organism host_organism	Escherichia coli BL21(DE3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	482

Crystal Structure of HiaBD1

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

Hia

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

1s7m__assembly_3__model_1

1s7m__assembly_3__model_1 | I(q)

1s7m__assembly_3__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (6 domains)

CATH v4.4 (18 domains)

7. Citations (1)