2IT9

Crystal structure of a protein with unknown function from DUF155 family (YP_292156.1) from Prochlorococcus sp. NATL2A at 1.80 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP, NANODROP	8	277	1.0M LiCl, 10.0% PEG-6000, 0.1M TRIS, pH 8.0, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.723	α = 90
b = 81.021	β = 90
c = 124.352	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	ADSC QUANTUM 315		2006-08-30	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	0.9740, 0.9800, 0.9799	ALS	8.2.2

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	1.8	67.884	99.7	0.06	0.06	8	3.6		56456			26.4

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	1.8	1.85	100		0.665	0.665	1.1	3.6	4097

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	1.8	67.884	56272	2857	99.29	0.181	0.179	0.213	RANDOM	33.859

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]
0.65			0.54		-1.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.174
r_dihedral_angle_4_deg	18.769
r_dihedral_angle_3_deg	10.709
r_scangle_it	6.644
r_scbond_it	4.481
r_dihedral_angle_1_deg	3.914
r_mcangle_it	2.839
r_mcbond_it	2.031
r_angle_refined_deg	1.633
r_angle_other_deg	0.923
r_mcbond_other	0.687
r_nbd_refined	0.214
r_symmetry_vdw_refined	0.204
r_symmetry_vdw_other	0.198
r_nbtor_refined	0.181
r_nbd_other	0.178
r_symmetry_hbond_refined	0.176
r_xyhbond_nbd_refined	0.169
r_chiral_restr	0.092
r_nbtor_other	0.088
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3890
Nucleic Acid Atoms
Solvent Atoms	386
Heterogen Atoms	51

Software

Software
Software Name	Purpose
MolProbity	model building
SHELX	phasing
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
autoSHARP	phasing