2PLH

STRUCTURE OF ALPHA-1-PUROTHIONIN AT ROOM TEMPERATURE AND 2.8 ANGSTROMS RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.59	α = 90
b = 53.59	β = 90
c = 69.79	γ = 90

Symmetry
Space Group	I 4 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray			CRAD, P21		1989-01-01	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1			1.5418

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	2.5	10	61.5	0.123		2		2106		2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		2.5	10	2	1168			0.155

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
p_staggered_tor	18.1
p_orthonormal_tor	9.5
p_planar_tor	1
p_scangle_it	0.911
p_mcangle_it	0.86
p_scbond_it	0.603
p_mcbond_it	0.53
p_chiral_restr	0.112
p_singtor_nbd	0.095
p_xhyhbond_nbd	0.079
p_multtor_nbd	0.074
p_planar_d	0.028
p_angle_d	0.026
p_bond_d	0.012
p_plane_restr	0.005
p_angle_deg
p_hb_or_metal_coord
p_xyhbond_nbd
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	330
Nucleic Acid Atoms
Solvent Atoms	108
Heterogen Atoms	39

Software

Software
Software Name	Purpose
DTP	data collection
PROLSQ	refinement
DTP	data reduction