4EIF

Crystal structure of cytochrome c6C L50Q mutant from Synechococcus sp. PCC 7002

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	292	Protein solution: 15 mg/ml cytochrome c6C in 0.1 M TRIS pH 7.5, 0.2 M NaCl and 1 mM PMSF; Precipitant solution: 2 M NaCl and 2 M NH4)2SO4., VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.69

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.38	α = 90
b = 56.38	β = 90
c = 50.05	γ = 90

Symmetry
Space Group	P 4 21 2

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	MAR CCD 165 mm	mirrors	2011-12-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X13	0.8123	EMBL/DESY, HAMBURG	X13

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	1.04	31.18	99.2	0.073	22.25	10.4	39071	39071		-3	10.127

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	1.04	1.1	98.7		0.244	7.8	7.6	5898

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 4EIE	1.04	31.18	39071	39071	977	100	0.1197	0.1197	0.1191	0.1449	RANDOM	10.5564

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]
-0.16			-0.16		0.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.611
r_dihedral_angle_3_deg	11.346
r_dihedral_angle_4_deg	7.01
r_dihedral_angle_1_deg	5.941
r_scangle_it	4.466
r_scbond_it	3.269
r_mcangle_it	2.52
r_angle_refined_deg	1.855
r_mcbond_it	1.745
r_angle_other_deg	1.397
r_rigid_bond_restr	1.25
r_mcbond_other	0.584
r_chiral_restr	0.136
r_bond_refined_d	0.019
r_gen_planes_refined	0.014
r_bond_other_d	0.003
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	622
Nucleic Acid Atoms
Solvent Atoms	140
Heterogen Atoms	50

Software

Software
Software Name	Purpose
XSCALE	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
DNA	data collection
XDS	data reduction
XDS	data scaling