A Fab structure with a covalent bond

entry_id	9ucg
deposition_date	2025-04-04
last_revision	2026-04-08
title	A Fab structure with a covalent bond
keywords	antibody, IMMUNE SYSTEM; IMMUNE SYSTEM
method	X-RAY DIFFRACTION

rg_guinier	33.53 Å
rg_electron	32.85 Å
i0	137581000.00
molecular_weight	93134.0 kDa
excluded_volume	116420 ų
envelope_volume	151380 ų
shell_volume	39303 ų
envelope_diameter	113.2 Å
shell_rg	38.68 Å
envelope_rg	32.52 Å
shape_rg	32.86 Å
total_rg	33.29 Å
total_atoms	6556
n_residues	857
n_harmonics	20
q_range	— – 0.5000 Å−1
n_points	101
shell_type	directional
solvent_density	0.3340 e/ų
contrast_shell	0.0300 e/ų
crysol_version	4.1.3

dmax	108.0 Å
rg_real	33.56 Å
rg_real_error	0.81 Å
i0_real	1.3760e+08
i0_real_error	2.1350e+06
rg_reciprocal	33.54 Å
i0_reciprocal	137600000.0000
total_estimate	0.6777
solution_quality	REASONABLE a REASONABLE solution
n_peaks	1
r_peak_primary	105.7 Å
skewness	0.350
kurtosis	-0.393
angular_range	— – 0.2350 Å−1
current_alpha	0.0000
highest_alpha	21610000.0000
n_real_points	48
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.932; Stabil: 1.000; Sysdev: 0.078; Positv: 1.000; Valcen: 0.970; Smooth: 0.805

Unit Cell

length_a	101.233 Å
length_b	101.233 Å
length_c	212.417 Å
angle_alpha	90.00 °
angle_beta	90.00 °
angle_gamma	90.00 °
z_pdb	16

Symmetry

space_group	P 43 21 2
int_tables_number	96
crystal_system	tetragonal

Refinement

resolution	2.650 Å
resolution_low	49.240 Å
r_factor	0.2238
r_work	0.2200
r_free	0.2813

Diffraction

temperature

100.0 K

Files (7)

• pr_distribution /app/data/pr_computation/uc/9ucg/pr_distribution.json
• pr_output /app/data/pr_computation/uc/9ucg/9ucg.pr.out
• pr_plot /app/data/visualization/pr_computation/uc/9ucg/9ucg_pr_distribution.png
• saxs_curve_dat /app/data/saxs_computation/uc/9ucg/9ucg.dat
• saxs_fit /app/data/saxs_computation/uc/9ucg/9ucg.fit
• saxs_log /app/data/saxs_computation/uc/9ucg/9ucg.log
• saxs_plot /app/data/visualization/saxs_computation/uc/9ucg/9ucg_saxs_profile.png

Curves (3)

fit	/app/data/saxs_computation/uc/9ucg/9ucg.fit
pddf	/app/data/pr_computation/uc/9ucg/9ucg.pr.out
profile	/app/data/saxs_computation/uc/9ucg/9ucg.dat