3H4H

Met94Thr/Phe312Cys variant of nitrite reductase from Alcaligenes faecalis

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5	298	pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.301	α = 90
b = 102.077	β = 90
c = 146.336	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					2004-06-19	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)	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	1.6	84.52					103196

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	Refinement of wild-type structure	THROUGHOUT	1.6	30	103196	5454	89.31	0.18281	0.18059	0.22594	RANDOM	23.185

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]
2.14			-0.31		-1.84

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.848
r_dihedral_angle_4_deg	19.942
r_dihedral_angle_3_deg	12.651
r_dihedral_angle_1_deg	7.085
r_scangle_it	2.873
r_scbond_it	1.929
r_angle_refined_deg	1.386
r_mcangle_it	1.181
r_mcbond_it	0.77
r_nbtor_refined	0.31
r_symmetry_vdw_refined	0.203
r_nbd_refined	0.192
r_symmetry_hbond_refined	0.141
r_xyhbond_nbd_refined	0.133
r_chiral_restr	0.096
r_metal_ion_refined	0.044
r_bond_refined_d	0.012
r_gen_planes_refined	0.006
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_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	7653
Nucleic Acid Atoms
Solvent Atoms	1344
Heterogen Atoms	6

Software

Software
Software Name	Purpose
REFMAC	refinement