SAXSdb — 2wkn

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

FORMAMIDASE

DELFTIA ACIDOVORANS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	ZINC ION × 8 water × 4	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 4	ZINC ION × 8 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A9BPK4_DELAS
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–409； UniProt 1–409 Author chain B； PDBConstruct 1–409； UniProt 1–409 Author chain C； PDBConstruct 1–409； UniProt 1–409 Author chain D； PDBConstruct 1–409； UniProt 1–409 Author chain E； PDBConstruct 1–409； UniProt 1–409 Author chain F； PDBConstruct 1–409； UniProt 1–409 Author chain G； PDBConstruct 1–409； UniProt 1–409 Author chain H； PDBConstruct 1–409； UniProt 1–409

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	2wkn
Deposition date deposition_date	2009-06-16
Structure title title	gamma lactamase from Delftia acidovorans
Keywords keywords	HYDROLASE, BIOCATALYSIS; 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.

2wkn__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2wkn__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2wkn__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	34.35 Å
Rg (electron density)	33.14 Å
Total Rg	33.80 Å
Atom count	12504
Residues	1632
Excluded volume	221590 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2wkn__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2wkn__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	FORMAMIDASE
Molecular weight formula_weight	44467.1 kDa
EC 编号 ec_number	3.5.1.49
Source method src_method	man
Copy count entity_count	8

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H
Atom count atom_count	26920

MAETLIKVDLNQSPYDNPQVHNRWHPDIPMAVWVEPGAEFKLETYDWTGGAIKNDDSAEDVRDVDLSTVHFLSGPVGVKGAEPGDLLVVDLLDIGARDDSLWGFNGFFSKQNGGGFLDEHFPLAQKSIWDFHGMFTKSRHIPGVNFAGLIHPGLIGCLPDPKMLASWNERETGLIATDPDRIPGLANPPNATTAHMGQMQGEARDKAAAEGARTVPPREHGGNCDIKDLSRGSRVFFPVYVDGAGLSVGDLHFSQGDGEITFCGAIEMAGWVHMKVSLIKGGMAKYGIKNPIFKPSPMTPNYKDYLIFEGISVDEKGKQHYLDVTVAYRQACLNAIEYLKKFGYSGAQAYSLLGTAPVQGHISGVVDVPNACATLWLPTEIFDFDINPTAEGPQKIITGGVDLPIAQDK

Source Source

Source organism organism	DELFTIA ACIDOVORANS
NCBI taxonomy ID ncbi_taxonomy_id	80866
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	16

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	1848

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Unit-cell length a length_a	63.871 Å
Unit-cell length b length_b	94.621 Å
Unit-cell length c length_c	152.297 Å
Unit-cell angle α angle_alpha	105.71 °
Unit-cell angle β angle_beta	90.27 °
Unit-cell angle γ angle_gamma	108.46 °
Molecules per unit cell Z z_pdb	8

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

Resolution resolution	2.080 Å
Low-resolution limit resolution_low	24.780 Å
R factor r_factor	0.2210
R_work r_work	0.2200
R_free r_free	0.2690

gamma lactamase from Delftia acidovorans

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

FORMAMIDASE

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

2wkn__assembly_2__model_1

2wkn__assembly_2__model_1 | I(q)

2wkn__assembly_2__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

7. Citations (2)

gamma lactamase from Delftia acidovorans

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

FORMAMIDASE

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

2wkn__assembly_2__model_1

2wkn__assembly_2__model_1 | I(q)

2wkn__assembly_2__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

7. Citations (2)