2AP1 | pdb_00002ap1

Crystal structure of the putative regulatory protein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	295	HEPES, tri-Sodium Citrate, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.6	53.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.581	α = 90
b = 105.744	β = 90
c = 88.262	γ = 90

Symmetry
Space Group	C 2 2 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	SBC-3		2005-07-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	1.284	APS	19-BM

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	1.9	30	99.6	0.049	15.1	6.8	30297	30297		-3

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	1.9	1.97	99.9		0.232	7.9	6.5

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 (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.9	20	30297	28739	1548	99.65	0.1694	0.1694	0.16753	0.17	0.20508	0.17	RANDOM	30.172

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]
0.52			-1.5		0.98

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.166
r_dihedral_angle_4_deg	15.916
r_dihedral_angle_3_deg	11.145
r_scangle_it	4.837
r_dihedral_angle_1_deg	3.641
r_scbond_it	3.222
r_mcangle_it	2.12
r_angle_refined_deg	1.643
r_mcbond_it	1.251
r_nbtor_refined	0.313
r_symmetry_hbond_refined	0.238
r_symmetry_vdw_refined	0.228
r_nbd_refined	0.212
r_xyhbond_nbd_refined	0.17
r_chiral_restr	0.135
r_metal_ion_refined	0.042
r_symmetry_metal_ion_refined	0.018
r_bond_refined_d	0.016
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_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2340
Nucleic Acid Atoms
Solvent Atoms	290
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
SCALEPACK	data scaling
SHARP	phasing