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9qy8

Crystal structure of apoform human USP18

Method: X-RAY DIFFRACTION D_max: 103.5 Å Quality: EXCELLENT

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9qy8
deposition_date	2025-04-17
last_revision	2026-04-29
title	Crystal structure of apoform human USP18
keywords	UBIQUITIN-SPECIFIC PROTEASE, ISG15, INTERFERON, HYDROLASE; HYDROLASE
method	X-RAY DIFFRACTION

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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	33.38 Å
rg_electron	32.70 Å
i0	144033000.00
molecular_weight	96034.0 kDa
excluded_volume	120480 Å³
envelope_volume	162950 Å³
shell_volume	41640 Å³
envelope_diameter	115.5 Å
shell_rg	39.68 Å
envelope_rg	31.62 Å
shape_rg	32.74 Å
total_rg	33.15 Å
total_atoms	6733
n_residues	875
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	103.5 Å
rg_real	33.25 Å
rg_real_error	0.72 Å
i0_real	1.4400e+08
i0_real_error	2.5560e+06
rg_reciprocal	33.33 Å
i0_reciprocal	144000000.0000
total_estimate	0.9095
solution_quality	EXCELLENT a EXCELLENT solution
n_peaks	2
r_peak_primary	44.0 Å
skewness	0.108
kurtosis	-0.592
angular_range	— – 0.2350 Å⁻¹
current_alpha	0.0000
highest_alpha	18000000.0000
n_real_points	48
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.957; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.950

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4. Crystallography & Experiment

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5. Entities & Polymer Info (3)

Entity 1 polymer

description	Ubl carboxyl-terminal hydrolase 18,Response regulator FrzS
formula_weight	49748.4 kDa
ec_number	3.4.19.12
src_method	man
entity_count	2

Polymer

type	polypeptide(L)
strand_id	A,B
atom_count	6962

GPDYPHGLVGLHNIGQTCCLNSLIQVFVMNVDFTRILKRITVPRGADEQRRSVPFQMLLLLEKMQDSRQKAVRPLELAYCLQKCNVPLFVQHDAAQLYLKLWNLIKDQITDVHLVERLQALYTIRVKDSLICVDCAMESSRNSSMLTLPLSLFDVDSKPLKTLEDALHCFFQPRELSSKSKCFCENCGKKTRGKQVLKLTHLPQTLTIHLMRFSIRNSQTRKICHSLYFPQSLDFSQILGSMSKKILIVESDTALSATLRSALEGRGFTVDETTDGKGSVEQIRRDRPDLVVLAVDLSAGQNGYLICGKLKKDDDLKNVPIVIIGNPDGFAQHRKLKAHADEYVAKPVDADQLVERAGALIGFPEGSGQYELFAVIAHVGMADSGHYCVYIRNAVDGKWFCFNDSNICLVSWEDIQCTYGNPNYHWQETAYLLVYMKMEC

Source

organism	Homo sapiens
common_name	human
ncbi_taxonomy_id	9606
host_organism	Spodoptera frugiperda

Entity 2 non-polymer

description	ZINC ION
formula_weight	65.4 kDa
src_method	syn
entity_count	2

Entity 3 water

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	223

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6. Citations (1)

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length_a	47.868 Å
length_b	71.775 Å
length_c	73.063 Å
angle_alpha	79.32 °
angle_beta	76.28 °
angle_gamma	89.88 °
z_pdb	2

space_group	P 1
int_tables_number	1
crystal_system	—

resolution	1.919 Å
resolution_low	39.593 Å
r_factor	—
r_work	0.2048
r_free	0.2601

fit	/app/data/saxs_computation/qy/9qy8/9qy8.fit
pddf	/app/data/pr_computation/qy/9qy8/9qy8.pr.out
profile	/app/data/saxs_computation/qy/9qy8/9qy8.dat

Crystal structure of apoform human USP18

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

Diffraction