2BIH

crystal structure of the Molybdenum-containing nitrate reducing fragment of Pichia angusta assimilatory nitrate reductase

X-RAY DIFFRACTION

---

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.3	47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.74	α = 90
b = 76.74	β = 90
c = 306.086	γ = 120

Symmetry
Space Group	P 61 2 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	MARRESEARCH	MIRRORS	2003-06-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MPG/DESY, HAMBURG BEAMLINE BW6		MPG/DESY, HAMBURG	BW6

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	2.6	30	99.6	0.09	24.7	8		17438

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	2.6	2.64	99.8		0.44	3.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	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	MOLECULAR REPLACEMENT	PDB ENTRY 1OGP	2.6	65.94	17366	880	99.6	0.193	0.19	0.258	RANDOM	46.81

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]
2.454	1.227		2.454		-3.681

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.908
r_dihedral_angle_4_deg	17.866
r_dihedral_angle_3_deg	16.601
r_dihedral_angle_1_deg	8.406
r_scangle_it	2.474
r_angle_refined_deg	1.901
r_scbond_it	1.65
r_mcangle_it	1.042
r_mcbond_it	0.873
r_angle_other_deg	0.848
r_symmetry_hbond_refined	0.535
r_symmetry_vdw_refined	0.3
r_symmetry_vdw_other	0.258
r_nbd_refined	0.217
r_nbd_other	0.203
r_nbtor_refined	0.191
r_xyhbond_nbd_refined	0.129
r_nbtor_other	0.092
r_chiral_restr	0.09
r_bond_refined_d	0.017
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3654
Nucleic Acid Atoms
Solvent Atoms	59
Heterogen Atoms	27

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing