3C8L

Crystal structure of a ftsz-like protein of unknown function (npun_r1471) from nostoc punctiforme pcc 73102 at 1.22 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	277	NANODROP, 2.0M (NH4)2SO4, 0.1M Tris-HCl pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.418	α = 90
b = 78.628	β = 90
c = 75.04	γ = 90

Symmetry
Space Group	C 2 2 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	MARMOSAIC 325 mm CCD	Flat collimating mirror, toroid focusing mirror	2008-01-12	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91837, 0.97978, 0.97964	SSRL	BL9-2

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	1.22	44.065	98.5	0.053	11.5			65528		-3	10.538

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	1.22	1.26	95.5		0.518	1.8

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	1.22	44.065	65514	3334	98.58	0.159	0.158	0.184	RANDOM	11.411

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]
0.26			-0.25

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.548
r_dihedral_angle_4_deg	14.55
r_dihedral_angle_3_deg	9.544
r_sphericity_free	6.241
r_dihedral_angle_1_deg	3.651
r_sphericity_bonded	2.982
r_scangle_it	2.952
r_mcangle_it	2.253
r_scbond_it	2.107
r_angle_refined_deg	1.746
r_mcbond_it	1.725
r_rigid_bond_restr	1.22
r_angle_other_deg	1.085
r_mcbond_other	0.764
r_symmetry_vdw_other	0.232
r_nbd_refined	0.207
r_nbd_other	0.196
r_nbtor_refined	0.161
r_symmetry_vdw_refined	0.158
r_symmetry_hbond_refined	0.152
r_xyhbond_nbd_refined	0.148
r_chiral_restr	0.11
r_nbtor_other	0.086
r_bond_refined_d	0.017
r_gen_planes_refined	0.007
r_gen_planes_other	0.004
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1783
Nucleic Acid Atoms
Solvent Atoms	243
Heterogen Atoms	44

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing