4HBH

Bacterial Photosynthetic Reaction Center from Rhodobacter sphaeroides with ILE M265 replaced with ASN

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1PCR	PDB ENTRY 1PCR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298	drop: 13 mg/mL protein, 0.8 M potassium phosphate, 5 mM Tris, 5 uM EDTA, 4.0% 1,2,3-heptanetriol, 2.0% dioxane, 140 mM sodium chloride, 0.045% LDAO, reservoir: 1.6 M potassium phosphate, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
5.68	78.35

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 139.72	α = 90
b = 139.72	β = 90
c = 183.98	γ = 120

Symmetry
Space Group	P 31 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	MARMOSAIC 300 mm CCD		2012-03-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G		APS	21-ID-G

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	2.93	121.001	99.6	0.125	13.37			45001		-3	55.99

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	2.93	3.01	100		0.793	2.89

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1PCR	2.93	121	44997	2250	99.6	0.187	0.185	0.226	48.49

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]
-0.03	-0.01		-0.03		0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.199
r_dihedral_angle_4_deg	23.924
r_dihedral_angle_3_deg	21.08
r_dihedral_angle_1_deg	7.376
r_scangle_it	3.655
r_angle_refined_deg	2.364
r_scbond_it	2.306
r_mcangle_it	1.558
r_mcbond_it	0.806
r_chiral_restr	0.138
r_bond_refined_d	0.021
r_gen_planes_refined	0.009
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_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	6391
Nucleic Acid Atoms
Solvent Atoms	21
Heterogen Atoms	507

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
REFMAC	phasing
XSCALE	data scaling