2QUG

Crystal structure of alpha-1-antitrypsin, crystal form A

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		295	29% PEG 3350, 400 mM NaF, vapor diffusion, hanging drop, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.368	α = 90
b = 39.391	β = 104.61
c = 90.154	γ = 90

Symmetry
Space Group	C 1 2 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	CCD	ADSC QUANTUM 315		2006-03-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.9	APS	14-BM-C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	87.37	91.9	0.139	0.139	8.1	4.8		24296			24.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.11	90.8		0.708	0.708	2	4.9	3426

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	87.37	24294	1225	91.9	0.218	0.215	0.275	RANDOM	13.727

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]
-0.08		1.14	0.84		-0.19

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.486
r_dihedral_angle_4_deg	29.99
r_dihedral_angle_3_deg	21.392
r_dihedral_angle_1_deg	10.549
r_scangle_it	6.792
r_scbond_it	5.435
r_mcangle_it	3.505
r_mcbond_it	2.87
r_angle_refined_deg	1.381
r_mcbond_other	0.935
r_angle_other_deg	0.797
r_symmetry_vdw_other	0.35
r_symmetry_vdw_refined	0.276
r_nbd_other	0.241
r_nbd_refined	0.239
r_nbtor_refined	0.198
r_xyhbond_nbd_refined	0.197
r_symmetry_hbond_refined	0.13
r_nbtor_other	0.099
r_chiral_restr	0.095
r_gen_planes_refined	0.024
r_bond_refined_d	0.013
r_gen_planes_other	0.002
r_bond_other_d

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2928
Nucleic Acid Atoms
Solvent Atoms	46
Heterogen Atoms

Software

Software
Software Name	Purpose
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction