SAXSdb — 8sj3

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

Beta-lactamase CTX-M-14

Escherichia coli

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein monomer Monomer Protein × 1 PDB declaration: monomeric（1） Consistent with protein copy count	Chain A； UniProt 22–284	Not recorded	No other associated polymer	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 5；298 K；0.2 M ammonium chloride, 0.1 M sodium acetate, 20% w/v PEG 6,000	Resolution 1.50 Å R-free 0.198
2	Protein monomer Monomer Protein × 1 PDB declaration: monomeric（1） Consistent with protein copy count	Chain B； UniProt 22–284	Not recorded	No other associated polymer	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 5；298 K；0.2 M ammonium chloride, 0.1 M sodium acetate, 20% w/v PEG 6,000	Resolution 1.50 Å R-free 0.198

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 8SJ3	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
4UA6 CTX-M-14 Class A Beta-Lactamase Apo Crystal Structure at 0.79 Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	PO4 PHOSPHATE ION × 2 K POTASSIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0M potassium phosphate	Resolution 0.79 Å R-free 0.115
4UA6 CTX-M-14 Class A Beta-Lactamase Apo Crystal Structure at 0.79 Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	PO4 PHOSPHATE ION × 3 K POTASSIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0M potassium phosphate	Resolution 0.79 Å R-free 0.115
4UA7 CTX-M-14 Class A Beta-Lactamase in Complex with a Non-Covalent Inhibitor at Sub-Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	3GK N-[3-(2H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)-1H-benzimidazole-4-carboxamide × 2 PO4 PHOSPHATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0M Potassium Phosphate	Resolution 0.89 Å R-free 0.131
4UA7 CTX-M-14 Class A Beta-Lactamase in Complex with a Non-Covalent Inhibitor at Sub-Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	3GK N-[3-(2H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)-1H-benzimidazole-4-carboxamide × 2 PO4 PHOSPHATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0M Potassium Phosphate	Resolution 0.89 Å R-free 0.131
4UA9 CTX-M-14 Class A Beta-Lactamase in Complex with a Boronic Acid Acylation Transition State Analog at Sub-Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	CB4 PINACOL[[2-AMINO-ALPHA-(1-CARBOXY-1-METHYLETHOXYIMINO)-4-THIAZOLEACETYL]AMINO]METHANEBORONATE × 1 PO4 PHOSPHATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0M Potassium Phosphate	Resolution 0.84 Å R-free 0.131
4UA9 CTX-M-14 Class A Beta-Lactamase in Complex with a Boronic Acid Acylation Transition State Analog at Sub-Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	CB4 PINACOL[[2-AMINO-ALPHA-(1-CARBOXY-1-METHYLETHOXYIMINO)-4-THIAZOLEACETYL]AMINO]METHANEBORONATE × 1 PO4 PHOSPHATE ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0M Potassium Phosphate	Resolution 0.84 Å R-free 0.131
4UAA CTX-M-14 Class A Beta-Lactamase in Complex with a Non-Covalent Inhibitor at Sub-Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	3GK N-[3-(2H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)-1H-benzimidazole-4-carboxamide × 2 PO4 PHOSPHATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；1.0M Potassium Phosphate	Resolution 0.86 Å R-free 0.134
4UAA CTX-M-14 Class A Beta-Lactamase in Complex with a Non-Covalent Inhibitor at Sub-Angstrom Resolution Deposited 2014-08-08	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 23–284（262 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	3GK N-[3-(2H-tetrazol-5-yl)phenyl]-6-(trifluoromethyl)-1H-benzimidazole-4-carboxamide × 2 PO4 PHOSPHATE ION × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；1.0M Potassium Phosphate	Resolution 0.86 Å R-free 0.134
5TOP Atomic Resolution X-Ray Crystal Structure of a Ruthenocene Conjugated Beta-Lactam Antibiotic in Complex with CTX-M-14 S70G Beta-Lactamase Deposited 2016-10-18	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 22–284（263 aa）	Mutation：S70G Non-standard monomer：Yes (specific site not provided by mmCIF)	K POTASSIUM ION × 1 JSE [(1,2,3,4,5-eta)-1-(4-{[carboxy(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 1 RU RUTHENIUM ION × 1 JSC [(1,2,3,4,5-eta)-1-(4-{[carboxy(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；293.15 K；potassium phosphate	Resolution 1.18 Å R-free 0.146
5TOP Atomic Resolution X-Ray Crystal Structure of a Ruthenocene Conjugated Beta-Lactam Antibiotic in Complex with CTX-M-14 S70G Beta-Lactamase Deposited 2016-10-18	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 22–284（263 aa）	Mutation：S70G Non-standard monomer：Yes (specific site not provided by mmCIF)	K POTASSIUM ION × 1 JSE [(1,2,3,4,5-eta)-1-(4-{[carboxy(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 1 RU RUTHENIUM ION × 2 7G4 ruthenocene × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；293.15 K；potassium phosphate	Resolution 1.18 Å R-free 0.146
5U53 CTX-M-14 E166A with acylated ceftazidime molecule Deposited 2016-12-06	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 22–284（263 aa） Fragment：UNP residues 24-284	Not recorded	CAZ ACYLATED CEFTAZIDIME × 1 NO3 NITRATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；0.2M ammonium nitrate, 20% (w/v) PEG 3350	Resolution 1.40 Å R-free 0.195
5VLE Ultrahigh Resolution X-Ray Crystal Structure of Ruthenocene Conjugated Penicilloate and Penilloate Products in Complex with CTX-M-14 E166A Beta-Lactamase Deposited 2017-04-25	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 22–284（263 aa） Fragment：UNP residues 22-284	Mutation：E166A Non-standard monomer：Yes (specific site not provided by mmCIF)	JSD [(1,2,3,4,5-eta)-1-(4-{[(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 2 JSC [(1,2,3,4,5-eta)-1-(4-{[carboxy(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 1 JSE [(1,2,3,4,5-eta)-1-(4-{[carboxy(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 1 K POTASSIUM ION × 1 RU RUTHENIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；293.15 K；potassium phosphate	Resolution 0.85 Å
5VLE Ultrahigh Resolution X-Ray Crystal Structure of Ruthenocene Conjugated Penicilloate and Penilloate Products in Complex with CTX-M-14 E166A Beta-Lactamase Deposited 2017-04-25	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 22–284（263 aa） Fragment：UNP residues 22-284	Mutation：E166A Non-standard monomer：Yes (specific site not provided by mmCIF)	JSD [(1,2,3,4,5-eta)-1-(4-{[(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 1 JSE [(1,2,3,4,5-eta)-1-(4-{[carboxy(4-carboxy-5,5-dimethyl-1,3-thiazolidin-2-yl)methyl]amino}-4-oxobutanoyl)cyclopentadienyl][(1,2,3,4,5-eta)-cyclopentadienyl]ruthenium × 1 K POTASSIUM ION × 1 PO4 PHOSPHATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.9；293.15 K；potassium phosphate	Resolution 0.85 Å
6MIA Crystal structure of CTX-M-14 with compound 6 Deposited 2018-09-19	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Not recorded	1CE 3-(1H-tetrazol-5-ylmethyl)-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0 M potassium phosphate	Resolution 1.40 Å R-free 0.163
6MIA Crystal structure of CTX-M-14 with compound 6 Deposited 2018-09-19	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 23–284（262 aa）	Not recorded	1CE 3-(1H-tetrazol-5-ylmethyl)-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0 M potassium phosphate	Resolution 1.40 Å R-free 0.163
7U70 Crystal Structure of CTX-M-14 with compound 2 Deposited 2022-03-07	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 22–284（263 aa） Fragment：UNP residues 23-284	Not recorded	LW0 3-fluoro-N-[(1R,3S)-3-(1H-tetrazol-5-yl)-2,3-dihydro-1H-inden-1-yl]benzamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0 M potassium phosphate	Resolution 1.36 Å R-free 0.171
7U70 Crystal Structure of CTX-M-14 with compound 2 Deposited 2022-03-07	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 22–284（263 aa） Fragment：UNP residues 23-284	Not recorded	LW0 3-fluoro-N-[(1R,3S)-3-(1H-tetrazol-5-yl)-2,3-dihydro-1H-inden-1-yl]benzamide × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；293 K；1.0 M potassium phosphate	Resolution 1.36 Å R-free 0.171
7UON CTX-M-14 Y105W mutant Deposited 2022-04-13	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 22–284（263 aa）	Mutation：Y105W	PO4 PHOSPHATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；296 K；HEPES (0.1M), PEG 4,000 (25% w/v)	Resolution 1.35 Å R-free 0.246
8DOD Beta-lactamase CTX-M-14 S130A Deposited 2022-07-12	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 22–284（263 aa）	Mutation：S130A Non-standard monomer：Yes (specific site not provided by mmCIF)	K POTASSIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；0.1 M Tris-HCl pH 8.5, 25% (W/V) PEG6000	Resolution 1.61 Å R-free 0.259
8DOE Crystal Structure of CTX-M-14 N106A Deposited 2022-07-12	Different construct Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Mutation：N106A	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；0.2 M Magnesium chloride ,0.1 M Tris pH 8 20% (w/v), PEG 6000	Resolution 1.50 Å R-free 0.165
8DON Beta-lactamase CTX-M-14 T215A Deposited 2022-07-13	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Mutation：T215A	PO4 PHOSPHATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；0.2 M Calcium chloride ,0.1 M HEPES pH 7, 20% (w/v) PEG 6000	Resolution 1.36 Å R-free 0.160
8DP4 Beta-lactamase CTX-M-14 T235A Deposited 2022-07-14	Different mutation/modification Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 22–284（263 aa）	Mutation：T235A Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；0.1 M SPG buffer pH 6, 25% (w/v) PEG 1500	Resolution 1.40 Å R-free 0.182
8DPQ Beta-lactamase CTX-M-14 N170A Deposited 2022-07-15	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 23–284（262 aa）	Mutation：N170A	EDO 1,2-ETHANEDIOL × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；0.1 M Sodium HEPES pH7.5, 25% (w/v) PEG 8000	Resolution 1.67 Å R-free 0.233
9Q0A CTX-M-14 WT in complex with BLIP E73W Deposited 2025-08-12	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 22–284（263 aa） Fragment：UNP residues 22-284	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；0.2 M calcium chloride, 0.1 M sodium acetate pH 5, 20% (w/v) PEG 6000	Resolution 1.65 Å R-free 0.211

16 other PDB entries and 24 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	H6UQI0_ECOLX
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–263； UniProt 22–284 Author chain B； PDBConstruct 1–263； UniProt 22–284

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	8sj3
Deposition date deposition_date	2023-04-17
Structure title title	Beta-lactamase CTX-M-14 E166Y/N170G
Keywords keywords	beta-lactamase, enzyme, serine protease, antimicrobial resistance, HYDROLASE; HYDROLASE
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	27.70 Å
Radius of gyration Rg (electron density) rg_electron	26.92 Å
Forward intensity I(0) i0	52250300.00
Molecular weight molecular_weight	55372.0 kDa
Excluded volume excluded_volume	68996 Å³
Envelope volume envelope_volume	81756 Å³
Hydration-shell volume shell_volume	25821 Å³
Envelope diameter envelope_diameter	91.5 Å
Shell Rg shell_rg	33.54 Å
Envelope Rg envelope_rg	26.89 Å
Shape Rg shape_rg	26.93 Å
Total Rg total_rg	27.56 Å
Total atoms total_atoms	3891
Residues n_residues	522
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	87.2 Å
Rg (real space) rg_real	27.80 Å
Rg uncertainty (real space) rg_real_error	0.67 Å
I(0) (real space) i0_real	5.2250e+07
I(0) uncertainty (real space) i0_real_error	7.8280e+05
Rg (reciprocal space) rg_reciprocal	27.77 Å
I(0) (reciprocal space) i0_reciprocal	52250000.0000
Solution quality estimate total_estimate	0.8893
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	26.0 Å
Skewness Skewness skewness	0.345
Kurtosis Kurtosis kurtosis	-0.637
Angular range angular_range	— – 0.2850 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	14110000.0000
Real-space data points n_real_points	58
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.904; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.933; Smooth: 0.910

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (2)

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8. Citations (1)

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Unit-cell length a length_a	42.371 Å
Unit-cell length b length_b	42.371 Å
Unit-cell length c length_c	262.434 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 41
Space-group number int_tables_number	76
Crystal system crystal_system	tetragonal

Resolution resolution	1.500 Å
Low-resolution limit resolution_low	32.970 Å
R factor r_factor	0.1452
R_work r_work	0.1424
R_free r_free	0.1976

Description description	Beta-lactamase CTX-M-14
Molecular weight formula_weight	27977.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	4575

Beta-lactamase CTX-M-14 E166Y/N170G

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

Beta-lactamase CTX-M-14

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

6. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 water

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)

来源生物 organism	Escherichia coli
NCBI Class编号 ncbi_taxonomy_id	562
宿主生物 host_organism	Escherichia coli BL21(DE3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	506

fit	/app/data/saxs_computation/sj/8sj3/8sj3.fit
pddf	/app/data/pr_computation/sj/8sj3/8sj3.pr.out
profile	/app/data/saxs_computation/sj/8sj3/8sj3.dat