6LCO

Crystal structure of bovine lactoperoxidase with substrates thiocynate and iodide bound at the distal heme side at 1.99 A resolution.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.8	298	Ammonium Iodide, PEG 3350, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.27	α = 90
b = 80.441	β = 103.2
c = 76.599	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	80	CCD	MARRESEARCH		2013-09-15	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	1.99	39.11	92.62	0.054	9.8	4.5		40498

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	1.99	2.05			0.495	3.9	3.7

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	4NT3	1.995	39.105	40498	2014	92.622	0.21	0.2069	0.2611	51.358

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]
-0.039		1.197	-1.413		0.803

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.909
r_dihedral_angle_4_deg	18.249
r_dihedral_angle_3_deg	16.606
r_lrange_it	9.472
r_lrange_other	9.4
r_dihedral_angle_1_deg	7.805
r_scangle_it	6.019
r_scangle_other	6.019
r_mcangle_it	5.725
r_mcangle_other	5.725
r_scbond_it	4.005
r_scbond_other	4.004
r_mcbond_it	3.866
r_mcbond_other	3.855
r_angle_refined_deg	1.581
r_angle_other_deg	1.47
r_chiral_restr_other	1.365
r_nbd_refined	0.224
r_xyhbond_nbd_refined	0.213
r_symmetry_nbd_other	0.202
r_nbd_other	0.199
r_nbtor_refined	0.167
r_symmetry_xyhbond_nbd_refined	0.155
r_symmetry_nbd_refined	0.149
r_symmetry_xyhbond_nbd_other	0.087
r_symmetry_nbtor_other	0.086
r_chiral_restr	0.072
r_gen_planes_other	0.009
r_bond_other_d	0.008
r_gen_planes_refined	0.008
r_bond_refined_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4770
Nucleic Acid Atoms
Solvent Atoms	393
Heterogen Atoms	167

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing