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9yi4

Octopus sensory receptor CRT1 bound to Progesterone

Method: ELECTRON MICROSCOPY D_max: 116.4 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9yi4
deposition_date	2025-10-01
title	Octopus sensory receptor CRT1 bound to Progesterone
keywords	complex, membrane protein; MEMBRANE PROTEIN
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	36.63 Å
rg_electron	36.37 Å
i0	394280000.00
molecular_weight	175510.0 kDa
excluded_volume	225690 Å³
envelope_volume	293310 Å³
shell_volume	65284 Å³
envelope_diameter	118.5 Å
shell_rg	44.05 Å
envelope_rg	35.93 Å
shape_rg	36.35 Å
total_rg	36.97 Å
total_atoms	24770
n_residues	1460
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	116.4 Å
rg_real	36.51 Å
rg_real_error	0.92 Å
i0_real	3.9430e+08
i0_real_error	6.4390e+06
rg_reciprocal	36.59 Å
i0_reciprocal	394300000.0000
total_estimate	0.8676
solution_quality	GOOD a GOOD solution
n_peaks	1
r_peak_primary	46.0 Å
skewness	0.305
kurtosis	-0.212
angular_range	— – 0.2150 Å⁻¹
current_alpha	0.0000
highest_alpha	62780000.0000
n_real_points	44
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.848; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.740

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4. Crystallography & Experiment

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5. Entities & Polymer Info (3)

Entity 1 polymer

description	Chemotactile receptor CRT1
formula_weight	47334.3 kDa
src_method	man
entity_count	5

Polymer

type	polypeptide(L)
strand_id	A,B,C,D,E
atom_count	24770

MIFVIYLVFILISSIPIVKSTPTYGDERLLREKLLTNYSKSIRPVINLTKVVDVTALLYLQTLYDLDFVNNFIMARYYLGLIWIDEKLTWNPLDYNNITSIYLPKDKIWTPPIKMCNSMDKSEENDGVGELMLTYTGWINMWSFRLLHTYCQINAYTYPFDEHTCEIYLCVALHTINHTRIKELIYEDSKFTQNYKWDINVSGKVNGTDELFSYAFAPMYLRRKLTVGIIAMLIPTVMMTILTIFVFLLPPESGEKVSLATTIFLSNVLYLVQIDKTTPTNTKYPSLLMLYLMLLSMLSGIATLGSVVISKLYVIQSPSLRKSNPSDQNMNKSHTNKVADISTISKVQSDLPIREKPNEKRIYCISDYIRLDDIFLKLSIATSVIISMIFTCLLFIPLESSAWSHPQFEK

Source

organism	Octopus bimaculoides
common_name	California two-spot octopus
ncbi_taxonomy_id	37653
host_organism	Homo sapiens

Entity 2 non-polymer

description	2-acetamido-2-deoxy-beta-D-glucopyranose
formula_weight	221.2 kDa
src_method	man
entity_count	25

Entity 3 non-polymer

description	PROGESTERONE
formula_weight	314.5 kDa
src_method	syn
entity_count	5

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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	2.800 Å
resolution_low	— Å
r_factor	—
r_work	—
r_free	—

resolution	2.80 Å
resolution_method	—
num_particles	241406

fit	/app/data/saxs_computation/yi/9yi4/9yi4.fit
pddf	/app/data/pr_computation/yi/9yi4/9yi4.pr.out
profile	/app/data/saxs_computation/yi/9yi4/9yi4.dat

Octopus sensory receptor CRT1 bound to Progesterone

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