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9xth

The complex structure of antibody CAV-CH76 bound to the hemagglutinin of influenza B virus (HA_B/Guangdong-Yuexiu/120/2022)

Method: X-RAY DIFFRACTION D_max: 113.9 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9xth
deposition_date	2025-11-22
last_revision	2026-02-18
title	The complex structure of antibody CAV-CH76 bound to the hemagglutinin of influenza B virus (HA_B/Guangdong-Yuexiu/120/2022)
keywords	hemagglutinin, influenza B virus, neutralizing antibody, VIRAL PROTEIN; VIRAL PROTEIN
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	32.76 Å
rg_electron	33.05 Å
i0	84922400.00
molecular_weight	71957.0 kDa
excluded_volume	89526 Å³
envelope_volume	116210 Å³
shell_volume	31938 Å³
envelope_diameter	117.4 Å
shell_rg	36.69 Å
envelope_rg	32.90 Å
shape_rg	33.00 Å
total_rg	33.50 Å
total_atoms	5060
n_residues	665
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	113.9 Å
rg_real	33.17 Å
rg_real_error	1.28 Å
i0_real	8.4920e+07
i0_real_error	1.4690e+06
rg_reciprocal	33.00 Å
i0_reciprocal	84910000.0000
total_estimate	0.8218
solution_quality	GOOD a GOOD solution
n_peaks	1
r_peak_primary	30.8 Å
skewness	0.562
kurtosis	-0.322
angular_range	— – 0.2400 Å⁻¹
current_alpha	0.0000
highest_alpha	10350000.0000
n_real_points	49
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.723; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.702; Smooth: 0.809

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4. Crystallography & Experiment

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5. Entities & Polymer Info (4)

Entity 1 polymer

description	the heavy chain of antibody CAV-CH76
formula_weight	26719.9 kDa
src_method	man
entity_count	1

Polymer

type	polypeptide(L)
strand_id	B
atom_count	5102

MGWSCIILFLVATATGVHSDVQLVQSGAEVKKPGSSVKVSCKASGDTFYTYVYTWLRQAPGQGPEWMGGYNHVLGTSNYAQRFQGRLTITADESTSTVYMDLSSLRSEDTAIYYCARTSLTAFDTYSHYHGMDVWGQGTTVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDK

Source

organism	Homo sapiens
ncbi_taxonomy_id	9606
host_organism	Homo sapiens

Entity 2 polymer

description	hemagglutinin
formula_weight	26382.0 kDa
src_method	man
entity_count	1

Polymer

type	polypeptide(L)
strand_id	A

DPTRGKLCPKCLNCTDLDVALGRPKCTGKIPSAKVSILHEVRPVTSGCFPIMHDRTKIRQLPNLLRGYEHVRLSTNNVINAEDAPGGPYEIGTSGSCPNITNGKGFFATMAWAVPKNKTATNPLTIEVPYICTEEEDQITVWGFHSDDETQMAKLYGDSKPQKFTSSANGMTTHYVSQIGGFPNQTEDGGLQQSGRIVVDYMVQKSGKTGTITYQRGILLPQKVWCASGKSKVIHHHHHH

Source

organism	Influenza B virus
ncbi_taxonomy_id	11520
host_organism	Spodoptera frugiperda

Entity 3 polymer

description	the light chain of antibody CAV-CH76
formula_weight	25464.3 kDa
src_method	man
entity_count	1

Polymer

type	polypeptide(L)
strand_id	C

MGWSCIILFLVATATGVHSDIQMTQSPSSVSASVGDRVTITCRASQDISNWLAWYQQRPGRAPKLLIYSASSLESGVPSRFSGSGSGTDFTFTISSLQPEDFATYYCQQAHSFPITFGQGTRLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC

Source

organism	Homo sapiens
ncbi_taxonomy_id	9606
host_organism	Homo sapiens

Entity 4 water

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	42

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6. Citations (1)

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length_a	50.207 Å
length_b	141.509 Å
length_c	53.079 Å
angle_alpha	90.00 °
angle_beta	105.54 °
angle_gamma	90.00 °
z_pdb	2

space_group	P 1 21 1
int_tables_number	4
crystal_system	—

resolution	3.010 Å
resolution_low	30.970 Å
r_factor	0.1995
r_work	0.1970
r_free	0.2438

fit	/app/data/saxs_computation/xt/9xth/9xth.fit
pddf	/app/data/pr_computation/xt/9xth/9xth.pr.out
profile	/app/data/saxs_computation/xt/9xth/9xth.dat

The complex structure of antibody CAV-CH76 bound to the hemagglutinin of influenza B virus (HA_B/Guangdong-Yuexiu/120/2022)

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

5. Entities & Polymer Info (4)

Entity 1 polymer

Polymer

Source

Entity 2 polymer

Polymer

Source

Entity 3 polymer

Polymer

Source

Entity 4 water

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)