4X9P | pdb_00004x9p

Crystal structure of bovine Annexin A2

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	293	Reservoir buffer: 30% PEG 4000, 0.1 M Na acetate, 0.2 M ammonium acetate. The drop consisted of 0.5 mkl of 2.3 mg/ml protein solution + 0.5 mkl of reservoir buffer supplemented with 20 mkM Ca2+ and 1 mM Mg2+.

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.315	α = 90
b = 63.274	β = 90
c = 117.334	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	SBC-3		2007-06-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.97901	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	2.01	50	99.7	0.048	12.1	6.9		24564		-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	2.01	2.08	99.1		0.276	5.9	6.4	2418

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1XJL	2.01	50	23260	1256	99.62	0.1592	0.1565	0.1683	0.209	0.2196	RANDOM	39.063

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]
-0.02			1.19		-1.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.986
r_dihedral_angle_4_deg	20.731
r_dihedral_angle_3_deg	15.383
r_dihedral_angle_1_deg	6.211
r_mcangle_it	3.415
r_mcbond_it	2.224
r_mcbond_other	2.224
r_angle_refined_deg	1.753
r_angle_other_deg	0.832
r_chiral_restr	0.095
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2525
Nucleic Acid Atoms
Solvent Atoms	267
Heterogen Atoms	4

Software

Software
Software Name	Purpose
DENZO	data reduction
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
SCALEPACK	data scaling