4HEX

A novel conformation of calmodulin

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	298	100mM Tris-HCl, 8-10%(v/v) PEG 6K, 5-10mM ZnCl2, 10%(v/v) glycerol, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.827	α = 90
b = 116.397	β = 94.83
c = 38.797	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 4		2009-10-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	0.978	NSLS	X8C

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	2.001	50	99.3	0.055		3.7		22800

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	2.02	2.05	98.9		0.381		3.4	2341

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	SAD	THROUGHOUT	2.001	28.58	21561	1191	98.29	0.2112	0.2098	0.2374	RANDOM	47.251

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]
1.24		2.89	-6.16		4.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.985
r_dihedral_angle_4_deg	26.531
r_dihedral_angle_3_deg	19.085
r_dihedral_angle_1_deg	6.677
r_angle_refined_deg	1.76
r_angle_other_deg	1.274
r_chiral_restr	0.102
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_bond_other_d	0.005
r_gen_planes_other	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2201
Nucleic Acid Atoms
Solvent Atoms	78
Heterogen Atoms	10

Software

Software
Software Name	Purpose
HKL-2000	data collection
SHELXCD	phasing
SHELXE	model building
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	refinement