1KFN

Core side-chain packing and backbone conformation in Lpp-56 coiled-coil mutants

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	293	PEG 4000, sodium acetate, ammonium acetate, L-cystein, pH 4.0, VAPOR DIFFUSION, HANGING DROP at 293K, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
1.76	30.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.29	α = 90
b = 36.29	β = 90
c = 83.473	γ = 120

Symmetry
Space Group	H 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	95	CCD	BRANDEIS - B4		2001-10-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.1000	NSLS	X25

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	1.65	50	99.7	0.059	11.7	3.7	4921	4921			27.9

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	1.65	1.68	97.9		0.203	6.5	3.5	232

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1.65	29.41	4921	4921	517	99.7	0.244	0.244	0.272	RANDOM	25.4

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]
-3	-0.21		-3		6

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	16.1
c_scangle_it	4.1
c_scbond_it	2.74
c_mcangle_it	2.2
c_mcbond_it	1.53
c_angle_deg	1
c_improper_angle_d	0.71
c_bond_d	0.007
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	386
Nucleic Acid Atoms
Solvent Atoms	41
Heterogen Atoms

Software

Software
Software Name	Purpose
AMoRE	phasing
CNS	refinement
MADNESS	data reduction
SCALEPACK	data scaling