2F1L

CRYSTAL STRUCTURE OF A PUTATIVE 16S RIBOSOMAL RNA PROCESSING PROTEIN RIMM (PA3744) FROM PSEUDOMONAS AERUGINOSA AT 2.46 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6	293	30.0% Glycerol, 5.6% PEG-4000, 0.1M Acetate, pH 4.6, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.41	63.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.228	α = 90
b = 80.228	β = 90
c = 71.855	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 325 mm CCD		2005-07-04	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.97932, 0.91162, 0.97915	SSRL	BL9-2

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	2.4	26.76	98.9	0.079	0.079	6	5.4		9930

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	2.46	2.52	88.4		0.752	0.752	1	4.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	2.46	26.8	9433	476	98.71	0.17732	0.175	0.237	RANDOM	35.483

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]
3.06	1.53		3.06		-4.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.487
r_dihedral_angle_4_deg	21.484
r_dihedral_angle_3_deg	15.184
r_scangle_it	7.835
r_dihedral_angle_1_deg	6.838
r_scbond_it	6.2
r_mcangle_it	2.964
r_mcbond_it	2.4
r_angle_refined_deg	1.702
r_angle_other_deg	0.816
r_mcbond_other	0.501
r_symmetry_vdw_other	0.21
r_nbd_refined	0.207
r_xyhbond_nbd_refined	0.202
r_nbd_other	0.192
r_nbtor_refined	0.18
r_symmetry_vdw_refined	0.174
r_symmetry_hbond_refined	0.121
r_chiral_restr	0.09
r_nbtor_other	0.086
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1283
Nucleic Acid Atoms
Solvent Atoms	44
Heterogen Atoms	37

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SOLVE	phasing