2HQ4

Crystal Structure of ORF 1580 a hypothetical protein from Pyrococcus horikoshii

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	291	HANGING DROP VAPOR DIFFUSION USING 1 MICROLITER DROPS CONTAINING EQUAL VOLUMES OF PROTEIN CONCENTRATE (12 mg/ml) AND RESERVOIR SOLUTION CONTAINinG 0.2M ammonium dihydrogen phosphate, 20% W/V PEG 3350, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.81	56.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 133.869	α = 90
b = 46.392	β = 132.42
c = 94.75	γ = 90

Symmetry
Space Group	C 1 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 300 mm CCD	Rosenbaum	2006-07-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	0.9790	APS	22-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.99	70	99.1	0.075	11.6	6.9	29575	28050		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.99	2.04	92.3		0.293		4.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1.99	20	28050	28017	1491	98.89	0.19654	0.19456	0.23184	RANDOM	31.5

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]
-0.3		-0.44	0.63		-0.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.031
r_dihedral_angle_4_deg	25.648
r_dihedral_angle_3_deg	15.744
r_dihedral_angle_1_deg	8.583
r_scangle_it	4.298
r_scbond_it	2.891
r_mcangle_it	1.919
r_angle_refined_deg	1.699
r_mcbond_it	1.279
r_nbtor_refined	0.317
r_symmetry_vdw_refined	0.258
r_nbd_refined	0.237
r_xyhbond_nbd_refined	0.237
r_symmetry_hbond_refined	0.166
r_chiral_restr	0.135
r_bond_refined_d	0.019
r_gen_planes_refined	0.007
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_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2689
Nucleic Acid Atoms
Solvent Atoms	214
Heterogen Atoms

Software

Software
Software Name	Purpose
Sca2Structure	model building
REFMAC	refinement
SERGUI	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
SCA2STRUCTURE	phasing