Experiment: 3QBL

Pharaonis halorhodopsin complexed with nitrate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3A7K	PDB ENTRY 3A7K

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	9	288	Crystallization: 3.5 mg/ml halorhodopsin, 5mg/ml nonylglucoside, 2.8M ammonium sulfate, 0.1 M glycine, 0.1M NaCl Post-crystallization soaking: 0.4 M Sodium Nitrate, 3 M ammonium sulfate, 0.1 M Hepes (pH7), 30% trehalose, pH 9.0, VAPOR DIFFUSION, SITTING DROP, temperature 288K

Crystal Properties
Matthews coefficient	Solvent content
3.21	61.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 150.75	α = 90
b = 100.03	β = 127.23
c = 99.33	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	mirrors	2010-04-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL26B2	1.0	SPring-8	BL26B2

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	2.2	50	96.3	0.089	0.089	9.8	3.8	59477	57277			34

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	2.32	96.3		0.61	0.531	1.3	3.9	7058

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3A7K	2.2	15	59414	57097	2885	96.1	0.262	0.252	0.2587	0.267	0.2708	RANDOM	39.2004

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]
6.999		10.939	-8.239		1.24

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	18.593
c_angle_d	1.16316
c_improper_angle_d	0.79991
c_bond_d	0.006704

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5877
Nucleic Acid Atoms
Solvent Atoms	136
Heterogen Atoms	138

Software

Software
Software Name	Purpose
ADSC	data collection
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
CNS	phasing