1N76

CRYSTAL STRUCTURE OF HUMAN SEMINAL LACTOFERRIN AT 3.4 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICRODIALYSIS	8	298	Tris-HCl, ethanol, pH 8.0, MICRODIALYSIS, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.72	55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.052	α = 90
b = 97.507	β = 90
c = 156.79	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE	MARRESEARCH	crystal monochromator	2001-10-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	3.4	20	93.8	0.159	6.4	2	11594	11008		-3	59.4

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	3.4	3.52	75		0.327	1.9

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	PDB ENTRY 1B0L	3.4	19.65	11008	11008	554	100	0.232	0.21937	0.21695	0.26599	RANDOM	37.177

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]
3.91			-1.76		-2.15

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	8.69
r_dihedral_angle_1_deg	6.776
r_scbond_it	6.341
r_mcangle_it	5.503
r_mcbond_it	3.411
r_angle_other_deg	2.126
r_angle_refined_deg	2.061
r_symmetry_hbond_refined	0.241
r_nbd_other	0.22
r_nbd_refined	0.207
r_symmetry_vdw_other	0.197
r_xyhbond_nbd_refined	0.177
r_symmetry_vdw_refined	0.163
r_chiral_restr	0.109
r_nbtor_other	0.09
r_bond_refined_d	0.035
r_gen_planes_refined	0.008
r_bond_other_d	0.006
r_gen_planes_other	0.005
r_dihedral_angle_2_deg
r_xyhbond_nbd_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5344
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	11

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement