SAXSdb — 9zor

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

Beta-lactamase OXA-23

Acinetobacter baumannii

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	(2S)-2-[(1S,2R)-1-carboxy-2-hydroxypropyl]-4-{[(3S)-2,3-dihydroazet-3-yl]sulfanyl}-2-methyl-2H-pyrrole-5-carboxylic acid × 1 SULFATE ION × 2 (4S)-2-METHYL-2,4-PENTANEDIOL × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	BLO23_ACIBA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–273； UniProt 1–273

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	9zor
Deposition date deposition_date	2025-12-16
Last revision last_revision	2026-01-14
Structure title title	OXA-23-JDB/PQ-1-219, 10 min complex
Keywords keywords	antibiotic resistance, beta-lactamase, inhibitor, HYDROLASE-INHIBITOR complex; HYDROLASE/INHIBITOR
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.

9zor__assembly_1__model_1

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

Download this curve (.dat)

9zor__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9zor__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.37 Å
Rg (electron density)	18.31 Å
Total Rg	19.27 Å
Atom count	1999
Residues	245
Excluded volume	35866 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9zor__assembly_1__model_1`	monomeric （1）	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 (5)

Entity 1 Entity 1 polymer

Description description	Beta-lactamase OXA-23
Molecular weight formula_weight	31054.8 kDa
EC 编号 ec_number	3.5.2.6
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2178

MNKYFTCYVVASLFLSGCTVQHNLINETPSQIVQGHNQVIHQYFDEKNTSGVLVIQTDKKINLYGNALSRANTEYVPASTFKMLNALIGLENQKTDINEIFKWKGEKRSFTAWEKDMTLGEAMKLSAVPVYQELARRIGLDLMQKEVKRIGFGNAEIGQQVDNFWLVGPLKVTPIQEVEFVSQLAHTQLPFSEKVQANVKNMLLLEESNGYKIFGKTGWAMDIKPQVGWLTGWVEQPDGKIVAFALNMEMRSEMPASIRNELLMKSLKQLNII

Source Source

Source organism organism	Acinetobacter baumannii
NCBI taxonomy ID ncbi_taxonomy_id	470
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	(2S)-2-[(1S,2R)-1-carboxy-2-hydroxypropyl]-4-{[(3S)-2,3-dihydroazet-3-yl]sulfanyl}-2-methyl-2H-pyrrole-5-carboxylic acid
Molecular weight formula_weight	312.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	(4S)-2-METHYL-2,4-PENTANEDIOL
Molecular weight formula_weight	118.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	135

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Unit-cell length a length_a	83.424 Å
Unit-cell length b length_b	83.424 Å
Unit-cell length c length_c	85.216 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	8

Space group space_group	P 42 21 2
Space-group number int_tables_number	94
Crystal system crystal_system	—

Resolution resolution	1.650 Å
Low-resolution limit resolution_low	37.950 Å
R factor r_factor	0.1802
R_work r_work	0.1792
R_free r_free	0.1998

OXA-23-JDB/PQ-1-219, 10 min complex

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

Beta-lactamase OXA-23

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

9zor__assembly_1__model_1

9zor__assembly_1__model_1 | I(q)

9zor__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)

OXA-23-JDB/PQ-1-219, 10 min complex

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

Beta-lactamase OXA-23

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

9zor__assembly_1__model_1

9zor__assembly_1__model_1 | I(q)

9zor__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)