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9xqr

Cryo-EM structure of P1X1 in complex with BTFA

Method: ELECTRON MICROSCOPY D_max: 114.0 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9xqr
deposition_date	2025-11-18
title	Cryo-EM structure of P1X1 in complex with BTFA
keywords	ION CHANNEL, 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	33.26 Å
rg_electron	33.07 Å
i0	383603000.00
molecular_weight	105610.0 kDa
excluded_volume	102390 Å³
envelope_volume	188780 Å³
shell_volume	48029 Å³
envelope_diameter	119.4 Å
shell_rg	39.24 Å
envelope_rg	33.82 Å
shape_rg	33.07 Å
total_rg	33.43 Å
total_atoms	7992
n_residues	997
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	114.0 Å
rg_real	33.41 Å
rg_real_error	0.81 Å
i0_real	3.8360e+08
i0_real_error	5.4850e+06
rg_reciprocal	33.35 Å
i0_reciprocal	383600000.0000
total_estimate	0.8398
solution_quality	GOOD a GOOD solution
n_peaks	1
r_peak_primary	38.0 Å
skewness	0.562
kurtosis	0.081
angular_range	— – 0.2400 Å⁻¹
current_alpha	0.0000
highest_alpha	35010000.0000
n_real_points	49
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.717; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.780

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4. Crystallography & Experiment

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5. Entities & Polymer Info (7)

Entity 1 polymer

description	P2X purinoceptor 1
formula_weight	48413.5 kDa
src_method	man
entity_count	3

Polymer

type	polypeptide(L)
strand_id	B,C,A
atom_count	7995

MARRLQDELSAFFFEYDTPRMVLVRNKKVGVIFRLIQLVVLVYVIGWVFVYEKGYQTSSGLISSVSVKLKGLAVTQLQGLGPQVWDVADYVFPAHGDSSFVVMTNFIMTPQQAQGHCAENPEGGICQDDSGCTPGKAERKAQGIRTGNCVPFNGTVKTCEIFGWCPVEVDDKIPSPALLHEAENFTLFIKNSISFPRFKVNRRNLVEEVNGTYMKKCLYHKILHPLCPVFSLGYVVRESGQDFRSLAEKGGVVGITIDWECDLDWHVRHCKPIYQFHGLYGEKNLSPGFNFRFARHFVQNGTNRRHLFKVFGIRFDILVDGKAGKFDIIPTMTTIGSGIGIFGVATVLCDLLLLHILPKRHYYKQKKFKYAEDMGPGEGERDPAATSSTLGLQENMRTSKLLEVLFQGPHHHHHHHHHHDYKDDDDK

Source

organism	Mus musculus
common_name	house mouse
ncbi_taxonomy_id	10090
host_organism	Spodoptera frugiperda

Entity 2 non-polymer

description	ADENOSINE-5'-TRIPHOSPHATE
formula_weight	507.2 kDa
src_method	syn
entity_count	3

Entity 3 non-polymer

description	2-acetamido-2-deoxy-beta-D-glucopyranose
formula_weight	221.2 kDa
src_method	syn
entity_count	3

Entity 4 non-polymer

description	CALCIUM ION
formula_weight	40.1 kDa
src_method	syn
entity_count	1

Entity 5 non-polymer

description	MAGNESIUM ION
formula_weight	24.3 kDa
src_method	syn
entity_count	3

Entity 6 non-polymer

description	3,5-bis(trifluoromethyl)aniline
formula_weight	229.1 kDa
src_method	syn
entity_count	1

Entity 7 water

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	3

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6. Citations (1)

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resolution	3.14 Å
resolution_method	—
num_particles	218684

fit	/app/data/saxs_computation/xq/9xqr/9xqr.fit
pddf	/app/data/pr_computation/xq/9xqr/9xqr.pr.out
profile	/app/data/saxs_computation/xq/9xqr/9xqr.dat