2V3Q

Serendipitous discovery and X-ray structure of a human phosphate binding apolipoprotein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6		50MM CACODYLATE BUFFER PH 6, AMMONIUM SULFATE 2M AND SODIUM CHLORIDE 1MM

Crystal Properties
Matthews coefficient	Solvent content
1.88	49.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.245	α = 90
b = 86.843	β = 90
c = 89.889	γ = 90

Symmetry
Space Group	C 2 2 21

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	MARRESEARCH			M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.934, 0.7228, 0.718758	ESRF	BM30A

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	1.9	48	99.4	0.09	13.78	7		30194		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	1.89	2.01	91.8		0.23	7.31

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	SIRAS	THROUGHOUT	NONE	1.89	44.95	28698	1495	99.6	0.13	0.127	0.186	RANDOM	14.87

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	35.869
r_dihedral_angle_4_deg	15.675
r_dihedral_angle_3_deg	12.162
r_dihedral_angle_1_deg	6.574
r_scangle_it	3.946
r_scbond_it	2.84
r_angle_refined_deg	2.142
r_mcangle_it	1.732
r_mcbond_it	1.26
r_nbtor_refined	0.312
r_symmetry_hbond_refined	0.244
r_nbd_refined	0.227
r_xyhbond_nbd_refined	0.205
r_chiral_restr	0.186
r_bond_refined_d	0.029
r_gen_planes_refined	0.012
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2721
Nucleic Acid Atoms
Solvent Atoms	694
Heterogen Atoms	77

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
SHARP	phasing