2AW6

Structure of a bacterial peptide pheromone/receptor complex and its mechanism of gene regulation

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2AWI	pdb entry 2AWI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	EVAPORATION	7	298	PEG4000, citrate-phosphate, pH 7.0, EVAPORATION, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.6	53.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.546	α = 90
b = 82.546	β = 90
c = 380.156	γ = 120

Symmetry
Space Group	P 61 2 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				2005-03-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 4.2.2		ALS	4.2.2

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	3	47.42	94.9	0.126	10	5.97		16419	1.2	1.5

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)
	3	3.11	94.9		0.415	2.1

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 (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 2AWI	3	30	14829	784	95.27	0.21435	0.21194	0.21	0.25987	0.24	RANDOM	54.506

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]
1.33	0.67		1.33		-2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.46
r_dihedral_angle_3_deg	18.232
r_dihedral_angle_4_deg	17.412
r_dihedral_angle_1_deg	4.404
r_angle_refined_deg	1.08
r_nbtor_refined	0.312
r_nbd_refined	0.22
r_symmetry_hbond_refined	0.209
r_symmetry_vdw_refined	0.158
r_xyhbond_nbd_refined	0.124
r_chiral_restr	0.078
r_bond_refined_d	0.008
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_scbond_it
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4841
Nucleic Acid Atoms
Solvent Atoms	25
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
CNS	refinement
PDB_EXTRACT	data extraction
d*TREK	data scaling
d*TREK	data processing