1E2V

N153Q mutant of cytochrome f from Chlamydomonas reinhardtii

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		THE PROTEIN WAS BUFFERED IN 10 MM NA2HPO4/NAH2PO4, 1 MM DTT, PH 6.5 AND THE RESERVOIR CONTAINED 100 MM MES, PH 6.5, 25 MM CALCIUM ACETATE, 1 MM DTT AND 17-19% PEG 8000.

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.12	α = 90
b = 94.22	β = 90
c = 121.08	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	CCD	ADSC QUANTUM 4		1999-04-15	M	SINGLE WAVELENGTH

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

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	1.85	43.85	97.9	0.048	0.048	26.1	4.5		73484			12.5

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	1.85	1.92	90.2		0.305	0.305	3.73	3.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	PDB ENTRY 1EWH	1.85	42.33	71428	3635	95.2	0.185	0.185	0.219	RANDOM	27.4

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]
-2.46			-2.01		4.47

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.6
c_scangle_it	3.67
c_scbond_it	2.42
c_mcangle_it	2.35
c_mcbond_it	1.54
c_angle_deg	1.3
c_improper_angle_d	0.98
c_bond_d	0.005
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5751
Nucleic Acid Atoms
Solvent Atoms	1186
Heterogen Atoms	141

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing