3CWM

Crystal structure of alpha-1-antitrypsin complexed with citrate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.4	295	27% PEG 4000, 0.2M Sodium Acetate, 100mM Tris-HCl, pH 8.4, vapor diffusion, hanging drop, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.41	49.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.183	α = 90
b = 52.539	β = 90
c = 207.533	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	IMAGE PLATE	MAR scanner 345 mm plate		2004-11-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.54179

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	2.5	20	95.2	0.07	14.3	4.3		14909

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	2.5	2.59	73.1		0.379		3.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.51	19.3	14859	741	96.8	0.22	0.217	0.271	RANDOM	13.02

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]
0.01			-0.75		0.75

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.763
r_dihedral_angle_3_deg	17.601
r_dihedral_angle_4_deg	17.134
r_dihedral_angle_1_deg	6.023
r_scangle_it	1.866
r_angle_refined_deg	1.345
r_scbond_it	1.171
r_mcangle_it	0.91
r_mcbond_it	0.507
r_nbtor_refined	0.303
r_nbd_refined	0.211
r_symmetry_vdw_refined	0.208
r_xyhbond_nbd_refined	0.18
r_symmetry_hbond_refined	0.134
r_chiral_restr	0.086
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2937
Nucleic Acid Atoms
Solvent Atoms	80
Heterogen Atoms	13

Software

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