SAXSdb — 9q0b

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

Beta-lactamase CTX-M-15

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Beta-lactamase inhibitory protein × 1 （P35804） water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	BLC15_ECO25
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–261； UniProt 31–291

Beta-lactamase inhibitory protein

Streptomyces clavuligerus

UniProt P35804

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Beta-lactamase CTX-M-15 × 1 （A0A5R8T042） water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	BLIP_STRCL
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–164； UniProt 38–201

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	9q0b
Deposition date deposition_date	2025-08-12
Structure title title	CTX-M-15 WT in complex with BLIP E73W
Keywords keywords	beta-lactamase, BLIP, beta-lactamase inhibitory protein, PROTEIN BINDING, HYDROLASE-PROTEIN BINDING complex; HYDROLASE/PROTEIN BINDING
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.

9q0b__assembly_1__model_1

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

Download this curve (.dat)

9q0b__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9q0b__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	22.61 Å
Rg (electron density)	21.75 Å
Total Rg	22.65 Å
Atom count	3191
Residues	425
Excluded volume	56451 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9q0b__assembly_1__model_1`	dimeric （2）	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	Beta-lactamase CTX-M-15
Molecular weight formula_weight	27909.6 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	3693

ADVQQKLAELERQSGGRLGVALINTADNSQILYRADERFAMCSTSKVMAAAAVLKKSESEPNLLNQRVEIKKSDLVNYNPIAEKHVNGTMSLAELSAAALQYSDNVAMNKLIAHVGGPASVTAFARQLGDETFRLDRTEPTLNTAIPGDPRDTTSPRAMAQTLRNLTLGKALGDSQRAQLVTWMKGNTTGAASIQAGLPASWVVGDKTGSGGYGTTNDIAVIWPKDRAPLILVTYFTQPQPKAESRRDVLASAAKIVTDGL

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 polymer

Description description	Beta-lactamase inhibitory protein
Molecular weight formula_weight	17542.5 kDa
Mutation mutation	E73W
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

GVMTGAKFTQIQFGMTRQQVLDIAGAENCETGGSFGDSIHCRGHAAGDYYAYATFGFTSAAADAKVDSKSQWKLLAPSAPTLTLAKFNQVTVGMTRAQVLATVGQGSCTTWSEYYPAYPSTAGVTLSLSCFDVDGYSSTGFYRGSAHLWFTDGVLQGKRQWDLV

Source Source

Source organism organism	Streptomyces clavuligerus
NCBI taxonomy ID ncbi_taxonomy_id	1901
Host organism host_organism	Komagataella pastoris

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	502

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Unit-cell length a length_a	47.460 Å
Unit-cell length b length_b	81.960 Å
Unit-cell length c length_c	129.074 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	96.14 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	I 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	monoclinic

Resolution resolution	1.580 Å
Low-resolution limit resolution_low	40.980 Å
R factor r_factor	0.1640
R_work r_work	0.1631
R_free r_free	0.1816

CTX-M-15 WT in complex with BLIP E73W

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

Beta-lactamase CTX-M-15

State in the Current Structure

Other States of the Same Protein in the Database

Beta-lactamase inhibitory protein

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

9q0b__assembly_1__model_1

9q0b__assembly_1__model_1 | I(q)

9q0b__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 water

7. Citations (1)

CTX-M-15 WT in complex with BLIP E73W

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

Beta-lactamase CTX-M-15

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Beta-lactamase inhibitory protein

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

9q0b__assembly_1__model_1

9q0b__assembly_1__model_1 | I(q)

9q0b__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 water

7. Citations (1)