1TEF

Crystal structure of the spinach plastocyanin mutants G8D/K30C/T69C and K30C/T69C- a study of the effect on crystal packing and thermostability from the introduction of a novel disulfide bond

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5	293	21% PEG 3350, 0.25M MgCl2, 0.1M Na-acetate, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.32	α = 90
b = 52.32	β = 90
c = 127.36	γ = 120

Symmetry
Space Group	P 32 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	MARRESEARCH		2001-05-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711	0.991	MAX II	I711

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	45.18	97.3	0.03	53.62	11.6	16181	16181	-3	2

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)
	1.9	2.1	94.7		0.047	38.05	10.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	PDB ENTRY 1AG6	1.9	19.2	16181	15359	820	98.05	0.15925	0.15689	0.20379	RANDOM	13.618

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]
0.23	0.11		0.23		-0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	16.711
r_dihedral_angle_1_deg	6.101
r_scangle_it	4.722
r_scbond_it	2.86
r_mcangle_it	1.751
r_angle_refined_deg	1.624
r_mcbond_it	0.961
r_angle_other_deg	0.799
r_symmetry_vdw_refined	0.341
r_symmetry_vdw_other	0.328
r_nbd_other	0.255
r_nbd_refined	0.193
r_symmetry_hbond_refined	0.157
r_xyhbond_nbd_refined	0.139
r_chiral_restr	0.1
r_nbtor_other	0.086
r_xyhbond_nbd_other	0.063
r_bond_refined_d	0.015
r_gen_planes_refined	0.003
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_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	1466
Nucleic Acid Atoms
Solvent Atoms	199
Heterogen Atoms	3

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
XDS	data scaling
AMoRE	phasing