1C4D

GRAMICIDIN CSCL COMPLEX

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				25 MG/ML GRAMICIDIN IN 53 MM CSCL IN METHANOL AT 10C FOR 3 MONTHS, BATCH METHOD, TEMPERATURE 283K

Crystal Properties
Matthews coefficient	Solvent content
1.73	31.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.118	α = 90
b = 52.103	β = 90
c = 31.174	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	290	DIFFRACTOMETER	PICKER FACS-1		1983-05-19	M	SINGLE WAVELENGTH

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

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	25	99.8		2		3813

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.5	99.2			2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation 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	SINGLE WAVELENGTH ANOMALOUS SCATTERING FROM CESIUM	NONE	2	5	1	3017			0.232	0.232

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
x_dihedral_angle_d	31.57
x_improper_angle_d	6.27
x_angle_deg	5.14
x_bond_d	0.042
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	544
Nucleic Acid Atoms
Solvent Atoms	20
Heterogen Atoms	40

Software

Software
Software Name	Purpose
PHASIT	model building
ASCALC	model building
X-PLOR	refinement
HANSON	data reduction
ANOSCL	data scaling
SCALE2	data scaling
SCALE3	data scaling
PHASIT	phasing
ASCALC	phasing