Experiment: 1MJT

CRYSTAL STRUCTURE OF SANOS, A BACTERIAL NITRIC OXIDE SYNTHASE OXYGENASE PROTEIN, IN COMPLEX WITH NAD+ AND SEITU

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3NOS	RESIDUE 122 ONWARDS OF PDB ENTRY 3NOS

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.4	294	PEG6000, MPD, Tris, NAD+, SEITU, non-detergent sulphobetaine 195, gamma-butyrolactone, pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
3.2	62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.78	α = 90
b = 115.14	β = 90
c = 126.02	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 4		2001-02-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.933	ESRF	ID14-2

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	2.4	30	95.8	0.126	6.8	4.6		36617		-1.5	44.1

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)
	2.4	2.49	96.5		0.439	1.3		3634

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	RESIDUE 122 ONWARDS OF PDB ENTRY 3NOS	2.4	29.34	36581	1818	95.7	0.177	0.182	0.1752	0.241	RANDOM	36.6

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]
-3.18			-5.85		9.03

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.7
c_scangle_it	10.8
c_scbond_it	7.89
c_mcangle_it	6.09
c_mcbond_it	4.29
c_angle_deg	1.2
c_improper_angle_d	0.95
c_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5724
Nucleic Acid Atoms
Solvent Atoms	382
Heterogen Atoms	196

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing