Crystal structure of Se-Met SSA1633 from Streptococcus sanguinis (Phase determination model)

Method: X-RAY DIFFRACTION D_max: 129.3 Å Quality: REASONABLE

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9vqn
deposition_date	2025-07-05
last_revision	2026-01-21
title	Crystal structure of Se-Met SSA1633 from Streptococcus sanguinis (Phase determination model)
keywords	Pili, Streptococcus sanguinis, CELL ADHESION; CELL ADHESION
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	32.01 Å
rg_electron	32.73 Å
i0	35573700.00
molecular_weight	45458.0 kDa
excluded_volume	56227 Å³
envelope_volume	75214 Å³
shell_volume	21905 Å³
envelope_diameter	134.6 Å
shell_rg	34.02 Å
envelope_rg	34.08 Å
shape_rg	32.75 Å
total_rg	32.78 Å
total_atoms	3184
n_residues	415
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	129.3 Å
rg_real	32.80 Å
rg_real_error	2.11 Å
i0_real	3.5570e+07
i0_real_error	7.1150e+05
rg_reciprocal	32.47 Å
i0_reciprocal	35560000.0000
total_estimate	0.6614
solution_quality	REASONABLE a REASONABLE solution
n_peaks	2
r_peak_primary	23.8 Å
skewness	0.726
kurtosis	-0.048
angular_range	— – 0.2450 Å⁻¹
current_alpha	0.0000
highest_alpha	8990000.0000
n_real_points	50
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.183; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.049; Smooth: 0.995

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4. Crystallography & Experiment

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5. Entities & Polymer Info (2)

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6. Citations (1)

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length_a	37.288 Å
length_b	58.883 Å
length_c	214.578 Å
angle_alpha	90.00 °
angle_beta	90.00 °
angle_gamma	90.00 °
z_pdb	4

space_group	P 21 21 21
int_tables_number	19
crystal_system	—

resolution	2.200 Å
resolution_low	35.760 Å
r_factor	0.2005
r_work	0.1992
r_free	0.2256

description	FimA fimbrial subunit-like protein, putative
formula_weight	51945.8 kDa
src_method	man
entity_count	1

type	polypeptide(L)
strand_id	A
atom_count	3404

Crystal structure of Se-Met SSA1633 from Streptococcus sanguinis (Phase determination model)

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 (2)

Entity 1 polymer

Polymer

Source

Entity 2 water

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)

organism	Streptococcus sanguinis
ncbi_taxonomy_id	1305
host_organism	Escherichia coli BL21(DE3)

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	216

fit	/app/data/saxs_computation/vq/9vqn/9vqn.fit
pddf	/app/data/pr_computation/vq/9vqn/9vqn.pr.out
profile	/app/data/saxs_computation/vq/9vqn/9vqn.dat