ALPHA-LACTALBUMIN

Method: X-RAY DIFFRACTION D_max: 54.6 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	1a4v
deposition_date	1998-02-05
title	ALPHA-LACTALBUMIN
keywords	LACTOSE SYNTHASE, CALCIUM BINDING, ALPHA-LACTALBUMIN; LACTOSE SYNTHASE
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	15.56 Å
rg_electron	14.32 Å
i0	3972510.00
molecular_weight	14151.0 kDa
excluded_volume	17714 Å³
envelope_volume	20059 Å³
shell_volume	12089 Å³
envelope_diameter	54.0 Å
shell_rg	19.85 Å
envelope_rg	14.77 Å
shape_rg	14.29 Å
total_rg	15.54 Å
total_atoms	985
n_residues	123
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	54.6 Å
rg_real	15.52 Å
rg_real_error	0.36 Å
i0_real	3.9730e+06
i0_real_error	4.4740e+04
rg_reciprocal	15.52 Å
i0_reciprocal	3973000.0000
total_estimate	0.7784
solution_quality	GOOD a GOOD solution
n_peaks	2
r_peak_primary	20.0 Å
skewness	0.280
kurtosis	-0.164
angular_range	— – 0.5000 Å⁻¹
current_alpha	0.0000
highest_alpha	563100.0000
n_real_points	80
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.715; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.970; Smooth: 0.000

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4. Crystallography & Experiment

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5. Entities & Polymer Info (3)

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6. Citations (5)

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length_a	35.470 Å
length_b	69.560 Å
length_c	45.960 Å
angle_alpha	90.00 °
angle_beta	90.00 °
angle_gamma	90.00 °
z_pdb	4

space_group	P 21 21 2
int_tables_number	18
crystal_system	—

resolution	1.800 Å
resolution_low	8.000 Å
r_factor	0.2100
r_work	0.2100
r_free	0.2630

description	ALPHA-LACTALBUMIN
formula_weight	14093.1 kDa
ec_number	2.4.1.22
src_method	nat
entity_count	1

type	polypeptide(L)
strand_id	A
atom_count	1091

ALPHA-LACTALBUMIN

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 (3)

Entity 1 polymer

Polymer

Entity 2 non-polymer

Entity 3 water

6. Citations (5)

7. Files & Curves (10)

Files (7)

Curves (3)

description	CALCIUM ION
formula_weight	40.1 kDa
src_method	syn
entity_count	2

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	106

fit	/app/data/saxs_computation/a4/1a4v/1a4v.fit
pddf	/app/data/pr_computation/a4/1a4v/1a4v.pr.out
profile	/app/data/saxs_computation/a4/1a4v/1a4v.dat