4OQO | pdb_00004oqo

Crystal structure of the tryptic generated iron-free C-lobe of bovine Lactoferrin at 2.42 Angstrom resolution

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3TAJ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	298	8% Tacsimate, 20% PEG 3350, pH 4, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.81	α = 90
b = 49.44	β = 94.33
c = 97.86	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	77	CCD	MARRESEARCH	Mirror	2013-11-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.97	ESRF	BM14

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.42	97.58	99.1	0.097	6.8		27691	27691

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.42	2.48	97.9		0.24	3.3

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3TAJ	2.42	38.67	26291	1386	98.73	0.22473	0.22288	0.23	0.25988	0.27	RANDOM	29.707

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]
-0.79		0.59	-0.19		0.88

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	43.881
r_dihedral_angle_4_deg	25.307
r_dihedral_angle_3_deg	24.133
r_dihedral_angle_1_deg	7.907
r_long_range_B_refined	6.884
r_long_range_B_other	6.883
r_scangle_other	4.084
r_mcangle_it	3.957
r_mcangle_other	3.956
r_angle_other_deg	3.769
r_scbond_it	2.504
r_scbond_other	2.504
r_mcbond_it	2.413
r_mcbond_other	2.413
r_angle_refined_deg	1.922
r_chiral_restr	0.118
r_bond_refined_d	0.017
r_gen_planes_other	0.009
r_gen_planes_refined	0.008
r_bond_other_d

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5316
Nucleic Acid Atoms
Solvent Atoms	310
Heterogen Atoms	70

Software

Software
Software Name	Purpose
HKL-2000	data collection
AMoRE	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling