SAXSdb — 1hkh

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

GAMMA LACTAMASE

MICROBACTERIUM

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8GJP7
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–279； UniProt 2–280 Author chain B； PDBConstruct 1–279； UniProt 2–280

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	1hkh
Deposition date deposition_date	2003-03-10
Structure title title	unligated gamma lactamase from an Aureobacterium species
Keywords keywords	HYDROLASE, ALPHA/BETA HYDROLASE, CO-FACTOR FREE HALOPEROXIDASE; HYDROLASE
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.

1hkh__assembly_1__model_1

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

Download this curve (.dat)

1hkh__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1hkh__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.12 Å
Rg (electron density)	27.92 Å
Total Rg	28.76 Å
Atom count	6579
Residues	837
Excluded volume	115690 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1hkh__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1hkh__assembly_2__model_1`	trimeric （3）	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	GAMMA LACTAMASE
Molecular weight formula_weight	30878.3 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	5376

GYITVGNENSTPIELYYEDQGSGQPVVLIHGYPLDGHSWERQTRELLAQGYRVITYDRRGFGGSSKVNTGYDYDTFAADLHTVLETLDLRDVVLVGFSMGTGELARYVARYGHERVAKLAFLASLEPFLVQRDDNPEGVPQEVFDGIEAAAKGDRFAWFTDFYKNFYNLDENLGSRISEQAVTGSWNVAIGSAPVAAYAVVPAWIEDFRSDVEAVRAAGKPTLILHGTKDNILPIDATARRFHQAVPEADYVEVEGAPHGLLWTHADEVNAALKTFLAK

Source Source

Source organism organism	MICROBACTERIUM
NCBI taxonomy ID ncbi_taxonomy_id	33882
Host organism host_organism	Escherichia coli DH5[alpha]

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	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	843

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1hkha_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.69 — alpha/beta-Hydrolases
Superfamily Superfamily superfamily	c.69.1 — alpha/beta-Hydrolases
Family Family family	c.69.1.12 — Haloperoxidase

Domain ID domain_id	d1hkhb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.69 — alpha/beta-Hydrolases
Superfamily Superfamily superfamily	c.69.1 — alpha/beta-Hydrolases
Family Family family	c.69.1.12 — Haloperoxidase

CATH v4.4 (2 domains)

Domain ID domain_id	1hkhA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1820 — Alpha/Beta hydrolase fold, catalytic domain

Domain ID domain_id	1hkhB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1820 — Alpha/Beta hydrolase fold, catalytic domain

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Unit-cell length a length_a	240.874 Å
Unit-cell length b length_b	240.874 Å
Unit-cell length c length_c	240.874 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	96

Space group space_group	F 2 3
Space-group number int_tables_number	196
Crystal system crystal_system	—

Resolution resolution	1.730 Å
Low-resolution limit resolution_low	11.000 Å
R factor r_factor	—
R_work r_work	0.1443
R_free r_free	0.1582

unligated gamma lactamase from an Aureobacterium species

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

GAMMA LACTAMASE

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

1hkh__assembly_1__model_1

1hkh__assembly_1__model_1 | I(q)

1hkh__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)

unligated gamma lactamase from an Aureobacterium species

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

GAMMA LACTAMASE

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

1hkh__assembly_1__model_1

1hkh__assembly_1__model_1 | I(q)

1hkh__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)