7BF1

Ca2+-Calmodulin in complex with peptide from brain-type creatine kinase in extended 1:2 binding mode

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	25% PEG 1500, 0.1 M SPG buffer pH 4-5. CaM-CKBpeptide ratios of 1:4

Crystal Properties
Matthews coefficient	Solvent content
1.77	30.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 24.411	α = 90
b = 59.534	β = 98.343
c = 52.477	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	PIXEL	DECTRIS PILATUS 6M		2018-04-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.972424	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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	1.24	39.161	96.95	0.08768	0.998	9.76	6.6		41629

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.24	1.284			1.608	0.471

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 (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2l7l	1.24	39.161	41593	2091	98.847	0.138	0.1351	0.1863	23.434

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]
-0.444		-0.933	-1.256		1.892

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	25.578
r_dihedral_angle_4_deg	18.746
r_dihedral_angle_3_deg	15.702
r_lrange_it	5.488
r_scangle_it	5.412
r_scangle_other	5.41
r_lrange_other	5.297
r_scbond_it	4.561
r_scbond_other	4.558
r_dihedral_angle_1_deg	4.369
r_rigid_bond_restr	3.669
r_mcangle_other	3.173
r_mcangle_it	3.171
r_mcbond_it	2.857
r_mcbond_other	2.749
r_angle_refined_deg	1.815
r_angle_other_deg	0.633
r_nbd_refined	0.254
r_symmetry_nbd_refined	0.241
r_nbd_other	0.221
r_xyhbond_nbd_refined	0.22
r_nbtor_refined	0.188
r_symmetry_nbd_other	0.187
r_symmetry_xyhbond_nbd_refined	0.162
r_symmetry_metal_ion_refined	0.1
r_chiral_restr	0.092
r_metal_ion_refined	0.073
r_symmetry_nbtor_other	0.07
r_bond_refined_d	0.013
r_gen_planes_refined	0.01
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1403
Nucleic Acid Atoms
Solvent Atoms	148
Heterogen Atoms	7

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
MOLREP	phasing