3BYA

Structure of a Calmodulin Complex

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1IWQ	PDB ENTRY 1IWQ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	293	17-19% PEG 3350, 0.120mM Ammonium Phosphate, 15% Ethylene Glycol, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.768	α = 90
b = 42.737	β = 106.92
c = 62.012	γ = 90

Symmetry
Space Group	C 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	100	CCD	ADSC QUANTUM 4	mirrors	2007-09-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X12B	1.0000	NSLS	X12B

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.85	30	99.8	0.04	0.043	28.1	3.8	14639	14639		-3	25.2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.85	1.92	100		0.298	0.332	4.6	3.8	1457

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1IWQ	1.85	32.74	13948	13948	735	99.71	0.18375	0.18375	0.18125	0.23159	RANDOM	34.227

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]
0.06		0.04	0.01		-0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.591
r_dihedral_angle_4_deg	21.34
r_dihedral_angle_3_deg	15.499
r_dihedral_angle_1_deg	5.33
r_scangle_it	4.485
r_scbond_it	3.013
r_mcangle_it	1.81
r_angle_refined_deg	1.682
r_mcbond_it	1.244
r_angle_other_deg	0.998
r_mcbond_other	0.32
r_symmetry_vdw_other	0.279
r_nbd_refined	0.241
r_xyhbond_nbd_refined	0.195
r_nbd_other	0.193
r_nbtor_refined	0.187
r_symmetry_hbond_refined	0.167
r_metal_ion_refined	0.166
r_symmetry_vdw_refined	0.139
r_chiral_restr	0.107
r_nbtor_other	0.089
r_bond_refined_d	0.02
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1239
Nucleic Acid Atoms
Solvent Atoms	79
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
CBASS	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing