2BYV

Structure of the cAMP responsive exchange factor Epac2 in its auto- inhibited state

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1O7F	PDB ENTRY 1O7F, PDB ENTRY 1BKD
experimental model	PDB	1BKD	PDB ENTRY 1O7F, PDB ENTRY 1BKD

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		100 MM BISTRISPROPANE7.5, 200 MM NANO3, 12% PEG 3350, pH 7.50

Crystal Properties
Matthews coefficient	Solvent content
2.8	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.406	α = 90
b = 97.038	β = 90
c = 172.101	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	100	CCD			2004-12-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		ESRF	ID14-4

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	2.7	30	98.6	0.06	23.2	7.3		35428

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	2.7	2.8	96.9		0.3	4.5

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1O7F, PDB ENTRY 1BKD	2.7	29.88	34014	1791	100	0.248	0.245	0.297	RANDOM	62.65

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]
0.46			-1.64		1.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.763
r_dihedral_angle_3_deg	15.602
r_dihedral_angle_4_deg	14.567
r_dihedral_angle_1_deg	4.742
r_angle_refined_deg	0.95
r_scangle_it	0.75
r_mcangle_it	0.608
r_scbond_it	0.44
r_mcbond_it	0.34
r_nbtor_refined	0.292
r_symmetry_hbond_refined	0.218
r_nbd_refined	0.173
r_xyhbond_nbd_refined	0.118
r_symmetry_vdw_refined	0.11
r_chiral_restr	0.065
r_bond_refined_d	0.006
r_gen_planes_refined	0.002
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7364
Nucleic Acid Atoms
Solvent Atoms	66
Heterogen Atoms

Software

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