3CHL | pdb_00003chl

Crystal Structure of Alpha-14 Giardin with magnesium bound

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	273	100 mM magnesium chloride, 100 mM sodium citrate pH 5.0, and 15% (w/v) PEG 4000 , VAPOR DIFFUSION, SITTING DROP, temperature 273K

Crystal Properties
Matthews coefficient	Solvent content
3.11	60.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 133.859	α = 90
b = 133.859	β = 90
c = 69.668	γ = 120

Symmetry
Space Group	H 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		CCD	ADSC QUANTUM 315		2007-05-19	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-1	0.979, 0.91216, 0.9793, 0.9795	SSRL	BL9-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	66.96	100			36608	36608

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.9	50	36571	36571	1828	99.65	0.201	0.199	0.1975	0.231	0.2294	RANDOM	34.236

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]
-0.69	-0.34		-0.69		1.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.359
r_dihedral_angle_4_deg	16.117
r_dihedral_angle_3_deg	15.37
r_dihedral_angle_1_deg	5.634
r_scangle_it	4.274
r_scbond_it	2.828
r_mcangle_it	1.949
r_angle_refined_deg	1.465
r_mcbond_it	1.148
r_nbtor_refined	0.306
r_nbd_refined	0.212
r_symmetry_hbond_refined	0.182
r_xyhbond_nbd_refined	0.153
r_symmetry_vdw_refined	0.141
r_chiral_restr	0.105
r_bond_refined_d	0.017
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2529
Nucleic Acid Atoms
Solvent Atoms	169
Heterogen Atoms	1

Software

Software
Software Name	Purpose
SOLVE	phasing
RESOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling