1Z7C

Crystal Structure of Human Placental Lactogen

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	292	sodium phosphate, PEG 3400, sodium chloride, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2	38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 115.504	α = 90
b = 30.047	β = 113.38
c = 53.49	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93	CCD	ADSC QUANTUM 4		2001-06-03	M	SINGLE WAVELENGTH
2	1	x-ray	93	CCD	CUSTOM-MADE		2002-07-17	M	MAD
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-D	1.00	APS	14-BM-D
2	SYNCHROTRON	APS BEAMLINE 19-ID	0.9792934, 0.97912954, 0.95373385	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.9	30	95.9	0.05	0.05	21.9	3.6		13322	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1,2	1.9	1.9	70.6		0.505	0.503	1.5	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	2	15	10328	1126	98.12	0.23308	0.22939	0.26704	RANDOM	36.324

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]
0.24		0.61	1.19		-0.95

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.483
r_dihedral_angle_4_deg	27.28
r_dihedral_angle_3_deg	21.704
r_dihedral_angle_1_deg	8.406
r_scangle_it	4.951
r_scbond_it	3.481
r_mcangle_it	2.252
r_angle_refined_deg	2.141
r_mcbond_it	1.443
r_nbtor_refined	0.317
r_nbd_refined	0.283
r_xyhbond_nbd_refined	0.216
r_symmetry_hbond_refined	0.216
r_symmetry_vdw_refined	0.213
r_chiral_restr	0.159
r_bond_refined_d	0.023
r_gen_planes_refined	0.01
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_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	1322
Nucleic Acid Atoms
Solvent Atoms	65
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
RESOLVE	phasing
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing