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9xfw

Crystal structure of Class A beta-lactamase BlaA in complex with Meropenem (Imine form)

Method: X-RAY DIFFRACTION D_max: 66.2 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9xfw
deposition_date	2025-10-29
last_revision	2025-11-12
title	Crystal structure of Class A beta-lactamase BlaA in complex with Meropenem (Imine form)
keywords	Partial Carbapenemase, Acy-Enzyme Complex, HYDROLASE; HYDROLASE
method	X-RAY DIFFRACTION

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Download Data

SAXS curve (.dat) P(r) distribution (.pr.out) Structure (CIF)

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2. SAXS Parameters (CRYSOL)

rg_guinier	18.91 Å
rg_electron	17.65 Å
i0	15144500.00
molecular_weight	28814.0 kDa
excluded_volume	35934 Å³
envelope_volume	39952 Å³
shell_volume	18669 Å³
envelope_diameter	63.1 Å
shell_rg	24.26 Å
envelope_rg	18.12 Å
shape_rg	17.65 Å
total_rg	18.61 Å
total_atoms	2023
n_residues	260
n_harmonics	20
q_range	— – 0.5000 Å⁻¹
n_points	101
shell_type	directional
solvent_density	0.3340 e/Å³
contrast_shell	0.0300 e/Å³
crysol_version	4.1.3

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3. P(r) Analysis (GNOM)

dmax	66.2 Å
rg_real	18.82 Å
rg_real_error	0.45 Å
i0_real	1.5140e+07
i0_real_error	1.8300e+05
rg_reciprocal	18.83 Å
i0_reciprocal	15140000.0000
total_estimate	0.7776
solution_quality	GOOD a GOOD solution
n_peaks	3
r_peak_primary	23.9 Å
skewness	0.236
kurtosis	-0.295
angular_range	— – 0.4200 Å⁻¹
current_alpha	0.0000
highest_alpha	3747000.0000
n_real_points	73
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.705; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.000

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4. Crystallography & Experiment

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5. Entities & Polymer Info (4)

Entity 1 polymer

description	Beta-lactamase
formula_weight	31966.6 kDa
ec_number	3.5.2.6
src_method	man
entity_count	1

Polymer

type	polypeptide(L)
strand_id	A
atom_count	2199

MKHSSLRRSLLLAGITLPLVSFALPAWANALPASVDKQLAELERNANGRLGVAMINTGNGTKILYRAAQRFPFCSTFKFMLAAAVLDQSQSQPNLLNKHINYHESDLLSYAPITRKNLAHGMTVSELCAATIQYSDNTAANLLIKELGGLAAVNQFARSIGDQMFRLDRWEPDLNTARPNDPRDTTTPAAMAASMNKLVLGDALRPAQRSQLAVWLKGNTTGDATIRAGAPTDWIVGDKTGSGDYGTTNDIAVLWPTKGAPIVLVVYFTQREKDAKPRRDVLASVTKIILSQIS

Source

organism	Yersinia enterocolitica
ncbi_taxonomy_id	630
host_organism	Escherichia coli BL21(DE3)

Entity 2 non-polymer

description	;(2S,3R,4S)-4-{[(3S,5S)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl}-2-[(2S,3R)-3-hydroxy-1-oxobutan-2-yl]-3-methyl-3,4-dihydro-2H-pyrrole-5-carboxylic acid ;
formula_weight	385.5 kDa
src_method	syn
entity_count	1

Entity 3 non-polymer

description	PHOSPHATE ION
formula_weight	95.0 kDa
src_method	syn
entity_count	1

Entity 4 water

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	176

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6. Citations (1)

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length_a	91.774 Å
length_b	72.619 Å
length_c	43.707 Å
angle_alpha	90.00 °
angle_beta	94.95 °
angle_gamma	90.00 °
z_pdb	4

space_group	C 1 2 1
int_tables_number	5
crystal_system	—

resolution	2.000 Å
resolution_low	24.530 Å
r_factor	—
r_work	0.2067
r_free	0.2706

fit	/app/data/saxs_computation/xf/9xfw/9xfw.fit
pddf	/app/data/pr_computation/xf/9xfw/9xfw.pr.out
profile	/app/data/saxs_computation/xf/9xfw/9xfw.dat

Crystal structure of Class A beta-lactamase BlaA in complex with Meropenem (Imine form)

SAXS Profile

P(r) Distribution

1. Structure Basics

Download Data

2. SAXS Parameters (CRYSOL)

3. P(r) Analysis (GNOM)

4. Crystallography & Experiment

Unit Cell

Symmetry

Refinement

Diffraction