2DXY

Structure of the complex of C-terminal lobe of bovine lactoferrin with trehalose at 2.0 A resolution

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2B6D

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	0.1M MES, PEG MONOMETHYLETHER, 0.1M ZNSO4, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.374	α = 90
b = 50.413	β = 107.81
c = 65.909	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	292	IMAGE PLATE	MAR scanner 345 mm plate	Mirorr	2006-08-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5412

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.03	63.25	97.6			25250	24409

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.03	2.1	95.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2B6D	2.03	63.25	25250	24409	806	97.55	0.18	0.17159	0.16902	0.2108	RANDOM	38.565

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]
0.7		-1.1	-0.85		-0.52

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	20.164
r_scangle_it	4.917
r_dihedral_angle_1_deg	4.685
r_scbond_it	2.881
r_mcangle_it	2.012
r_angle_refined_deg	1.746
r_mcbond_it	1.063
r_symmetry_hbond_refined	0.892
r_symmetry_vdw_refined	0.279
r_nbd_refined	0.245
r_metal_ion_refined	0.182
r_xyhbond_nbd_refined	0.177
r_chiral_restr	0.115
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_gen_planes_other
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2605
Nucleic Acid Atoms
Solvent Atoms	291
Heterogen Atoms	138

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
AUTOMAR	data reduction
AMoRE	phasing