SAXSdb — 6qw7

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

Beta-lactamase

Stenotrophomonas maltophilia

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	D-SERINE × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	(2S,5R)-1-formyl-N-(piperidin-4-yl)-5-[(sulfooxy)amino]piperidine-2-carboxamide × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9RBQ1_STEMA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–278； UniProt 28–303 Author chain B； PDBConstruct 3–278； UniProt 28–303

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	6qw7
Deposition date deposition_date	2019-03-05
Structure title title	Crystal structure of L2 complexed with relebactam (16 hour soak)
Keywords keywords	inhibitor, relebactam, diazabicyclooctane, antibiotic resistance., ANTIMICROBIAL PROTEIN; ANTIMICROBIAL 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.

6qw7__assembly_2__model_1

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

Download this curve (.dat)

6qw7__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6qw7__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	18.68 Å
Rg (electron density)	17.66 Å
Total Rg	18.57 Å
Atom count	4068
Residues	270
Excluded volume	35822 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6qw7__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`6qw7__assembly_2__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 (4)

Entity 1 Entity 1 polymer

Description description	Beta-lactamase
Molecular weight formula_weight	29318.2 kDa
EC 编号 ec_number	3.5.2.6
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	8920

GPAGKATANAPTDAAITAASDFAALEKACAGRLGVTLLDTASGRRIGHRQDERFPMCSTFKSMLAATVLSQAERMPALLDRRVPVGEADLLSHAPVTRRHAGKDMTVRDLCRATIITSDNTAANLLFGVVGGPPAVTAFLRASGDTVSRSDRLEPELNSFAKGDPRDTTTPAAMAATLQRVVLGEVLQPASRQQLADWLIDNETGDACLRAGLGKRWRVGDKTGSNGEDARNDIAVLWPVAGGAPWVLTAYLQAGAISYEQRASVLAQVGRIADRLIG

Source Source

Source organism organism	Stenotrophomonas maltophilia
NCBI taxonomy ID ncbi_taxonomy_id	40324
Host organism host_organism	Escherichia coli BL21

Entity 2 Entity 2 non-polymer

Description description	D-SERINE
Molecular weight formula_weight	105.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	(2S,5R)-1-formyl-N-(piperidin-4-yl)-5-[(sulfooxy)amino]piperidine-2-carboxamide
Molecular weight formula_weight	350.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	619

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	6qw7A00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	710 — Beta-lactamase
Homologous superfamily homologous superfamily	10 — DD-peptidase/beta-lactamase superfamily

Domain ID domain_id	6qw7B00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	710 — Beta-lactamase
Homologous superfamily homologous superfamily	10 — DD-peptidase/beta-lactamase superfamily

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Unit-cell length a length_a	69.958 Å
Unit-cell length b length_b	84.340 Å
Unit-cell length c length_c	94.136 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 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.780 Å
Low-resolution limit resolution_low	62.816 Å
R factor r_factor	0.1616
R_work r_work	0.1593
R_free r_free	0.2050

Crystal structure of L2 complexed with relebactam (16 hour soak)

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

Beta-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

6qw7__assembly_2__model_1

6qw7__assembly_2__model_1 | I(q)

6qw7__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

Crystal structure of L2 complexed with relebactam (16 hour soak)

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

Beta-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

6qw7__assembly_2__model_1

6qw7__assembly_2__model_1 | I(q)

6qw7__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 (4)

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 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)