2EU7

Crystal structure of D1A mutant of nitrophorin 2 complexed with ammonia

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	1mM protein, 3.2M ammonium phosphate, 100mM Tris HCl, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.77	α = 90
b = 125.3	β = 90
c = 34.08	γ = 90

Symmetry
Space Group	P 21 21 2

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	bent Si-mirror	2004-03-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-BM-C	0.9000	APS	14-BM-C

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	1.2	6	88.5	0.14	9.2	8.6	47640	47640			14

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)
	1.2	1.24	99.1		0.24	2.9	9.4	5261

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB ENTRY 1EUO	1.2	6	45095	2426	88.32	0.17862	0.17862	0.17665	0.21512	RANDOM	13.402

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]
			-0.02		0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.633
r_dihedral_angle_3_deg	13.448
r_sphericity_free	10.54
r_dihedral_angle_4_deg	7.734
r_dihedral_angle_1_deg	7.51
r_sphericity_bonded	5.084
r_scangle_it	4.71
r_scbond_it	3.97
r_mcangle_it	2.947
r_mcbond_it	2.635
r_angle_refined_deg	2.083
r_rigid_bond_restr	2.003
r_mcbond_other	0.987
r_angle_other_deg	0.908
r_symmetry_vdw_other	0.27
r_nbd_refined	0.244
r_symmetry_vdw_refined	0.201
r_nbd_other	0.183
r_nbtor_refined	0.183
r_xyhbond_nbd_refined	0.175
r_symmetry_hbond_refined	0.153
r_chiral_restr	0.133
r_nbtor_other	0.095
r_bond_refined_d	0.021
r_gen_planes_refined	0.015
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1424
Nucleic Acid Atoms
Solvent Atoms	238
Heterogen Atoms	44

Software

Software
Software Name	Purpose
REFMAC	refinement
XDISPLAYF	data reduction
d*TREK	data scaling