Cryo-EM structure of ArlA2 filament of Haloarcula marismortui

Method: ELECTRON MICROSCOPY D_max: 195.2 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9xtb
deposition_date	2025-11-22
title	Cryo-EM structure of ArlA2 filament of Haloarcula marismortui
keywords	archaellum, haloarcheon, PROTEIN FIBRIL; PROTEIN FIBRIL
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	78.00 Å
rg_electron	77.39 Å
i0	26068500000.00
molecular_weight	1285100.0 kDa
excluded_volume	1570900 Å³
envelope_volume	2776200 Å³
shell_volume	282650 Å³
envelope_diameter	289.6 Å
shell_rg	88.52 Å
envelope_rg	74.47 Å
shape_rg	77.41 Å
total_rg	77.41 Å
total_atoms	90160
n_residues	12628
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	195.2 Å
rg_real	76.05 Å
rg_real_error	0.25 Å
i0_real	2.5290e+10
i0_real_error	4.1190e+08
rg_reciprocal	79.27 Å
i0_reciprocal	26160000000.0000
total_estimate	0.8921
solution_quality	GOOD a GOOD solution
n_peaks	2
r_peak_primary	97.6 Å
skewness	0.054
kurtosis	-0.603
angular_range	— – 0.1000 Å⁻¹
current_alpha	0.1359
highest_alpha	7407000000.0000
n_real_points	21
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.958; Stabil: 0.981; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.000

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4. Crystallography & Experiment

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5. Entities & Polymer Info (2)

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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	3.000 Å
resolution_low	— Å
r_factor	—
r_work	—
r_free	—

resolution	3.00 Å
resolution_method	—
num_particles	309194

description	Flagellin
formula_weight	47382.5 kDa
src_method	nat
entity_count	28

Cryo-EM structure of ArlA2 filament of Haloarcula marismortui

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 (2)

Entity 1 polymer

Polymer

Entity 2 non-polymer

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)

type	polypeptide(L)
strand_id	A,C,D,G,H,J,K,L,N,O,R,S,T,V,W,X,Z,a,b,d,e,f,i,j,m,n,o,B
atom_count	90160

description	SODIUM ION
formula_weight	23.0 kDa
src_method	syn
entity_count	28

fit	/app/data/saxs_computation/xt/9xtb/9xtb.fit
pddf	/app/data/pr_computation/xt/9xtb/9xtb.pr.out
profile	/app/data/saxs_computation/xt/9xtb/9xtb.dat