1dj8

CRYSTAL STRUCTURE OF E. COLI PERIPLASMIC PROTEIN HDEA

Method: X-RAY DIFFRACTION

▼

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

PROTEIN HNS-DEPENDENT EXPRESSION A

OrganismNot specified

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	HDEA_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–89； UniProt 22–110 Author chain B； PDBConstruct 1–89； UniProt 22–110 Author chain C； PDBConstruct 1–89； UniProt 22–110 Author chain D； PDBConstruct 1–89； UniProt 22–110 Author chain E； PDBConstruct 1–89； UniProt 22–110 Author chain F； PDBConstruct 1–89； UniProt 22–110

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	1dj8
Deposition date deposition_date	1999-12-02
Structure title title	CRYSTAL STRUCTURE OF E. COLI PERIPLASMIC PROTEIN HDEA
Keywords keywords	ALPHA HELICAL, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method method	X-RAY DIFFRACTION

▼

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.

1dj8__assembly_1__model_1

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

Download this curve (.dat)

1dj8__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1dj8__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.62 Å
Rg (electron density)	15.30 Å
Total Rg	16.54 Å
Atom count	1226
Residues	158
Excluded volume	21804 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1dj8__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1dj8__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1dj8__assembly_3__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (2)

▼

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1dj8a_
Class class	a — All alpha proteins
Fold Fold fold	a.57 — Protein HNS-dependent expression A; HdeA
Superfamily Superfamily superfamily	a.57.1 — Protein HNS-dependent expression A; HdeA
Family Family family	a.57.1.1 — Protein HNS-dependent expression A; HdeA

Domain ID domain_id	d1dj8b_
Class class	a — All alpha proteins
Fold Fold fold	a.57 — Protein HNS-dependent expression A; HdeA
Superfamily Superfamily superfamily	a.57.1 — Protein HNS-dependent expression A; HdeA
Family Family family	a.57.1.1 — Protein HNS-dependent expression A; HdeA

Domain ID domain_id	d1dj8c_
Class class	a — All alpha proteins
Fold Fold fold	a.57 — Protein HNS-dependent expression A; HdeA
Superfamily Superfamily superfamily	a.57.1 — Protein HNS-dependent expression A; HdeA
Family Family family	a.57.1.1 — Protein HNS-dependent expression A; HdeA

Domain ID domain_id	d1dj8d_
Class class	a — All alpha proteins
Fold Fold fold	a.57 — Protein HNS-dependent expression A; HdeA
Superfamily Superfamily superfamily	a.57.1 — Protein HNS-dependent expression A; HdeA
Family Family family	a.57.1.1 — Protein HNS-dependent expression A; HdeA

Domain ID domain_id	d1dj8e_
Class class	a — All alpha proteins
Fold Fold fold	a.57 — Protein HNS-dependent expression A; HdeA
Superfamily Superfamily superfamily	a.57.1 — Protein HNS-dependent expression A; HdeA
Family Family family	a.57.1.1 — Protein HNS-dependent expression A; HdeA

Domain ID domain_id	d1dj8f_
Class class	a — All alpha proteins
Fold Fold fold	a.57 — Protein HNS-dependent expression A; HdeA
Superfamily Superfamily superfamily	a.57.1 — Protein HNS-dependent expression A; HdeA
Family Family family	a.57.1.1 — Protein HNS-dependent expression A; HdeA

CATH v4.4 (6 domains)

Domain ID domain_id	1dj8A00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	890 — 10k-s Protein, Hypothetical Protein A; Chain A
Homologous superfamily homologous superfamily	10 — HNS-dependent expression A

Domain ID domain_id	1dj8B00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	890 — 10k-s Protein, Hypothetical Protein A; Chain A
Homologous superfamily homologous superfamily	10 — HNS-dependent expression A

Domain ID domain_id	1dj8C00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	890 — 10k-s Protein, Hypothetical Protein A; Chain A
Homologous superfamily homologous superfamily	10 — HNS-dependent expression A

Domain ID domain_id	1dj8D00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	890 — 10k-s Protein, Hypothetical Protein A; Chain A
Homologous superfamily homologous superfamily	10 — HNS-dependent expression A

Domain ID domain_id	1dj8E00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	890 — 10k-s Protein, Hypothetical Protein A; Chain A
Homologous superfamily homologous superfamily	10 — HNS-dependent expression A

Domain ID domain_id	1dj8F00
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	890 — 10k-s Protein, Hypothetical Protein A; Chain A
Homologous superfamily homologous superfamily	10 — HNS-dependent expression A

▶

Unit-cell length a length_a	47.000 Å
Unit-cell length b length_b	73.600 Å
Unit-cell length c length_c	74.300 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	96.80 °
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	2.000 Å
Low-resolution limit resolution_low	15.000 Å
R factor r_factor	0.2090
R_work r_work	0.2090
R_free r_free	0.2610

Description description	PROTEIN HNS-DEPENDENT EXPRESSION A
Molecular weight formula_weight	9752.9 kDa
Source method src_method	nat
Copy count entity_count	6

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	4067

CRYSTAL STRUCTURE OF E. COLI PERIPLASMIC PROTEIN HDEA

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

PROTEIN HNS-DEPENDENT EXPRESSION A

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

1dj8__assembly_1__model_1

1dj8__assembly_1__model_1 | I(q)

1dj8__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (6)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	389

CRYSTAL STRUCTURE OF E. COLI PERIPLASMIC PROTEIN HDEA

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

PROTEIN HNS-DEPENDENT EXPRESSION A

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

1dj8__assembly_1__model_1

1dj8__assembly_1__model_1 | I(q)

1dj8__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (6)