4OMX

Crystal structure of goat beta-lactoglobulin (trigonal form)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1BEB	PDB ENTRY 1BEB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	293	2.3 M (NH4)2SO4 in 0.5 M Tris-HCl pH 8.5 , VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
5.11	75.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.49	α = 90
b = 97.49	β = 90
c = 67.82	γ = 120

Symmetry
Space Group	P 31 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	AGILENT ATLAS CCD		2013-03-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SEALED TUBE	OXFORD DIFFRACTION ENHANCE ULTRA	1.54

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.3	14.28	99.4	0.08	9.7		16973	16871	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.42	100		0.392	2		2445

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1BEB	2.3	14.28	15901	852	99.31	0.19573	0.19342	0.23987	RANDOM	36.081

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.178
r_dihedral_angle_3_deg	15.8
r_dihedral_angle_4_deg	12.458
r_long_range_B_refined	7.805
r_long_range_B_other	7.802
r_dihedral_angle_1_deg	6.025
r_scangle_other	5.064
r_mcangle_it	3.53
r_mcangle_other	3.527
r_scbond_it	3.024
r_scbond_other	3.022
r_mcbond_it	2.199
r_mcbond_other	2.199
r_angle_refined_deg	1.408
r_angle_other_deg	0.736
r_chiral_restr	0.084
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1274
Nucleic Acid Atoms
Solvent Atoms	161
Heterogen Atoms	28

Software

Software
Software Name	Purpose
CrysalisPro	data collection
PHASER	phasing
REFMAC	refinement
CrysalisPro	data reduction
SCALA	data scaling