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9rwp

Ancestral Group II Chaperonin (ACII) Double-Ring in Closed Conformation

Method: ELECTRON MICROSCOPY D_max: 171.6 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9rwp
deposition_date	2025-07-09
title	Ancestral Group II Chaperonin (ACII) Double-Ring in Closed Conformation
keywords	Chaperonins, Ancestors, Evolution, Cryoelectron Microscopy, CHAPERONE; CHAPERONE
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	68.14 Å
rg_electron	67.49 Å
i0	10563400000.00
molecular_weight	855850.0 kDa
excluded_volume	1067500 Å³
envelope_volume	1986800 Å³
shell_volume	234530 Å³
envelope_diameter	185.0 Å
shell_rg	80.53 Å
envelope_rg	62.15 Å
shape_rg	67.53 Å
total_rg	67.56 Å
total_atoms	120912
n_residues	7936
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	171.6 Å
rg_real	67.71 Å
rg_real_error	0.56 Å
i0_real	1.0560e+10
i0_real_error	1.8330e+08
rg_reciprocal	69.55 Å
i0_reciprocal	10600000000.0000
total_estimate	0.8364
solution_quality	GOOD a GOOD solution
n_peaks	1
r_peak_primary	104.4 Å
skewness	-0.226
kurtosis	-0.569
angular_range	— – 0.1150 Å⁻¹
current_alpha	0.0000
highest_alpha	6371000000.0000
n_real_points	24
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.963; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.980; Smooth: 0.000

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4. Crystallography & Experiment

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5. Entities & Polymer Info (3)

Entity 1 polymer

description	Ancestral Group II Chaperonin (ACII)
formula_weight	56811.4 kDa
src_method	man
entity_count	16

Polymer

type	polypeptide(L)
strand_id	A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P
atom_count	120912

MGQPMVVLSENTERTSGRDARKNNIAAARAIADMVKTTLGPRGMNKMLVNSLGDVTITNDGATILEEMDIEHPAAKMLKEVAKAQEEEAGDGTTTAVVLAGALLEEAEKLIEQGIHPTTIIKGYRKAVDKALEVLEEVAIPVDPDDEETLKAVARTAMTGKASEENREEIADLVVEAVLSLAEDGGGKYRVDLDNIKIEKQTGGGASDTELIEGVVLDKEPVHEDMPKKLENAKVAVLDAPIEVEKTELDAKISISSPEQFQAFLDQEEKQLREMVDKIVDTGANVVFCEKGIDDQVEHMLAKKGILAVRRVKKDDLEKIAKATGARVVSNIDELTPEDLGHAGLVEQRKKGEDRMVFVSGCKNEPVATILIRAATEHVVEELERAIDDALNAVKAAIKDGKVVPGGGAAEVAVARKLREYAKSLSGKEQLAIEAFADALEEIPRTLAENAGLDPIDTLVQLRAAHEEGDKNIGIDCLTGEVADMLEAGVIDPAAVKKQAIKSATEAATMILRIDDIIPAKAPTGEDGDG

Source

organism	synthetic construct
ncbi_taxonomy_id	32630
host_organism	Escherichia coli BL21(DE3)

Entity 2 non-polymer

description	ADENOSINE-5'-DIPHOSPHATE
formula_weight	427.2 kDa
src_method	syn
entity_count	16

Entity 3 non-polymer

description	MAGNESIUM ION
formula_weight	24.3 kDa
src_method	syn
entity_count	16

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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	triclinic

resolution	3.69 Å
resolution_method	—
num_particles	39180

fit	/app/data/saxs_computation/rw/9rwp/9rwp.fit
pddf	/app/data/pr_computation/rw/9rwp/9rwp.pr.out
profile	/app/data/saxs_computation/rw/9rwp/9rwp.dat