1IV7

Crystal Structure of Single Chain Monellin

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	7.2	277	PEG8000, potassium phosphate, pH 7.2, micro batch, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.65	α = 90
b = 36.26	β = 91.1
c = 46.38	γ = 90

Symmetry
Space Group	P 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	277	IMAGE PLATE	RIGAKU RAXIS IIC		1998-03-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200H	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	1.8	60	94	0.067			18113	17026

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	MOLECULAR REPLACEMENT	THROUGHOUT	1MOL	1.82	15	16119	870	93.16	0.20202	0.19983	0.24084	RANDOM	31.272

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]
-0.62		0.54	0.35		0.29

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	20.056
r_scangle_it	7.414
r_dihedral_angle_1_deg	4.955
r_scbond_it	4.625
r_mcangle_it	2.675
r_angle_refined_deg	2.232
r_mcbond_it	1.493
r_nbd_refined	0.267
r_symmetry_vdw_refined	0.253
r_symmetry_hbond_refined	0.228
r_xyhbond_nbd_refined	0.156
r_chiral_restr	0.154
r_bond_refined_d	0.027
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_symmetry_vdw_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	1596
Nucleic Acid Atoms
Solvent Atoms	106
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
REFMAC	refinement
X-PLOR	phasing