SAXSdb — 1mu4

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

HPr-like protein crh

Bacillus subtilis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	SULFATE ION × 3 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 4	SULFATE ION × 6 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CRH_BACSU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–85； UniProt 1–85 Author chain B； PDBConstruct 1–85； UniProt 1–85

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	1mu4
Deposition date deposition_date	2002-09-23
Structure title title	CRYSTAL STRUCTURE AT 1.8 ANGSTROMS OF THE BACILLUS SUBTILIS CATABOLITE REPRESSION HISTIDINE CONTAINING PROTEIN (CRH)
Keywords keywords	OPEN-FACED B-SANDWICH, PHOSPHOTRANSFERASE SYSTEM, SWAPPING DOMAIN, TRANSPORT PROTEIN; TRANSPORT 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.

1mu4__assembly_1__model_1

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

Download this curve (.dat)

1mu4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1mu4__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.53 Å
Rg (electron density)	18.74 Å
Total Rg	19.45 Å
Atom count	1345
Residues	173
Excluded volume	24094 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1mu4__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1mu4__assembly_2__model_1`	tetrameric （4）	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	HPr-like protein crh
Molecular weight formula_weight	9578.0 kDa
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	1467

MVQQKVEVRLKTGLQARPAALFVQEANRFTSDVFLEKDGKKVNAKSIMGLMSLAVSTGTEVTLIAQGEDEQEALEKLAAYVQEEVLQ

Source Source

Source organism organism	Bacillus subtilis
NCBI taxonomy ID ncbi_taxonomy_id	1423
Host organism host_organism	Escherichia coli

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	3

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	122

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1mu4a1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.94 — HPr-like
Superfamily Superfamily superfamily	d.94.1 — HPr-like
Family Family family	d.94.1.1 — HPr-like

Domain ID domain_id	d1mu4a2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1mu4b1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.94 — HPr-like
Superfamily Superfamily superfamily	d.94.1 — HPr-like
Family Family family	d.94.1.1 — HPr-like

Domain ID domain_id	d1mu4b2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id	1mu4A00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1340 — Histidine-containing Protein; Chain: A;
Homologous superfamily homologous superfamily	10 — HPr-like

Domain ID domain_id	1mu4B00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1340 — Histidine-containing Protein; Chain: A;
Homologous superfamily homologous superfamily	10 — HPr-like

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Unit-cell length a length_a	68.850 Å
Unit-cell length b length_b	68.850 Å
Unit-cell length c length_c	119.860 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	16

Space group space_group	P 43 2 2
Space-group number int_tables_number	95
Crystal system crystal_system	—

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	29.850 Å
R factor r_factor	0.1790
R_work r_work	0.1790
R_free r_free	0.1970

CRYSTAL STRUCTURE AT 1.8 ANGSTROMS OF THE BACILLUS SUBTILIS CATABOLITE REPRESSION HISTIDINE CONTAINING PROTEIN (CRH)

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

HPr-like protein crh

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

1mu4__assembly_1__model_1

1mu4__assembly_1__model_1 | I(q)

1mu4__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (2)

CRYSTAL STRUCTURE AT 1.8 ANGSTROMS OF THE BACILLUS SUBTILIS CATABOLITE REPRESSION HISTIDINE CONTAINING PROTEIN (CRH)

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

HPr-like protein crh

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

1mu4__assembly_1__model_1

1mu4__assembly_1__model_1 | I(q)

1mu4__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) 6 domains

SCOP 2.08 (4 domains)

CATH v4.4 (2 domains)

7. Citations (2)