cryo-EM structure of E.coli ArnA

Method: ELECTRON MICROSCOPY D_max: 159.5 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9wi0
deposition_date	2025-08-27
title	cryo-EM structure of E.coli ArnA
keywords	Bifunctional polymyxin resistance protein ArnA, ANTIBIOTIC; ANTIBIOTIC
method	ELECTRON MICROSCOPY

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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	52.75 Å
rg_electron	52.21 Å
i0	2761330000.00
molecular_weight	443020.0 kDa
excluded_volume	555630 Å³
envelope_volume	880270 Å³
shell_volume	132880 Å³
envelope_diameter	168.1 Å
shell_rg	60.85 Å
envelope_rg	51.13 Å
shape_rg	52.18 Å
total_rg	52.59 Å
total_atoms	31284
n_residues	3936
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	159.5 Å
rg_real	52.50 Å
rg_real_error	0.80 Å
i0_real	2.7610e+09
i0_real_error	4.6270e+07
rg_reciprocal	52.95 Å
i0_reciprocal	2763000000.0000
total_estimate	0.8730
solution_quality	GOOD a GOOD solution
n_peaks	1
r_peak_primary	63.8 Å
skewness	0.134
kurtosis	-0.539
angular_range	— – 0.1500 Å⁻¹
current_alpha	0.0001
highest_alpha	409900000.0000
n_real_points	31
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.935; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.970; Smooth: 0.570

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4. Crystallography & Experiment

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5. Entities & Polymer Info (1)

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6. Citations (1)

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length_a	1.000 Å
length_b	1.000 Å
length_c	1.000 Å
angle_alpha	90.00 °
angle_beta	90.00 °
angle_gamma	90.00 °
z_pdb	—

space_group	P 1
int_tables_number	1
crystal_system	—

resolution	2.890 Å
resolution_low	— Å
r_factor	—
r_work	—
r_free	—

resolution	2.89 Å
resolution_method	—
num_particles	476403

description	Bifunctional polymyxin resistance protein ArnA
formula_weight	74385.8 kDa
ec_number	2.1.2.13,1.1.1.305
src_method	man
entity_count	6

cryo-EM structure of E.coli ArnA

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

EM 3D

5. Entities & Polymer Info (1)

Entity 1 polymer

Polymer

Source

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)

organism	Escherichia coli BW25113
ncbi_taxonomy_id	679895
host_organism	Escherichia coli BL21(DE3)

fit	/app/data/saxs_computation/wi/9wi0/9wi0.fit
pddf	/app/data/pr_computation/wi/9wi0/9wi0.pr.out
profile	/app/data/saxs_computation/wi/9wi0/9wi0.dat

type	polypeptide(L)
strand_id	A,B,C,D,E,F
atom_count	31284