2O62

CRYSTAL STRUCTURE OF A PROTEIN WITH UNKNOWN FUNCTION FROM DUF3598 FAMILY (NPUN_R4044) FROM NOSTOC PUNCTIFORME PCC 73102 AT 1.75 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP, NANODROP	6.3	277	0.2M NH4Cl, 20.0% PEG-3350, No Buffer pH 6.3, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.21	α = 90
b = 71.88	β = 90
c = 132.61	γ = 90

Symmetry
Space Group	P 21 21 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 mirror (vertical focusing)	2006-11-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1		SSRL	BL11-1

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	1.75	29.148	93.7	0.083	9.71			56361			24.116

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	1.75	1.81	70.4		0.462	1.6

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	SAD	THROUGHOUT	1.75	29.148	56308	2834	93.94	0.168	0.166	0.208	RANDOM	21.992

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]
2.08			-1.18		-0.9

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.783
r_dihedral_angle_4_deg	18.369
r_dihedral_angle_3_deg	12.507
r_dihedral_angle_1_deg	6.706
r_scangle_it	4.174
r_scbond_it	2.645
r_angle_refined_deg	1.641
r_mcangle_it	1.636
r_mcbond_it	1.059
r_angle_other_deg	0.828
r_symmetry_vdw_refined	0.276
r_mcbond_other	0.267
r_symmetry_vdw_other	0.247
r_nbd_refined	0.222
r_nbd_other	0.204
r_xyhbond_nbd_refined	0.182
r_nbtor_refined	0.176
r_symmetry_hbond_refined	0.158
r_chiral_restr	0.102
r_nbtor_other	0.084
r_bond_refined_d	0.016
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4225
Nucleic Acid Atoms
Solvent Atoms	506
Heterogen Atoms	92

Software

Software
Software Name	Purpose
MolProbity	model building
REFMAC	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHARP	phasing
SOLVE	phasing