1AZL

G61V FLAVODOXIN MUTANT FROM DESULFOVIBRIO VULGARIS

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		RECOMBINANT FLAVODOXIN

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	macroseeding	7		PROTEIN SEED CRYSTALS WERE OBTAINED FROM 60-70% AMMONIUM SULFATE, 10MM TRIS PH 7.0, 1-2% ACETONE. MACROSEEDS WERE TRANSFERRED TO THE ABOVE SOLUTION WITH NO ACETONE PRESENT., macroseeding

Crystal Properties
Matthews coefficient	Solvent content
2.6	53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.49	α = 90
b = 88.14	β = 90
c = 35.19	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	277	IMAGE PLATE	MARRESEARCH	MIRROR	1992-04-21	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.5		SRS	PX9.5

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.8	20	89.2	0.062	0.062	10.2	3.4		12653		-3	18.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.9	79.9		0.49	0.49	1.6	3.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	RECOMBINANT FLAVODOXIN	1.8	10	61954	61954		89.3	0.175		24.5

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	24.8
p_staggered_tor	17.7
p_scangle_it	9.8
p_scbond_it	6.7
p_mcangle_it	4.2
p_mcbond_it	3.1
p_planar_tor	2.4
p_multtor_nbd	0.25
p_singtor_nbd	0.19
p_xyhbond_nbd	0.18
p_chiral_restr	0.16
p_angle_d	0.046
p_planar_d	0.045
p_bond_d	0.016
p_plane_restr	0.014
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1106
Nucleic Acid Atoms
Solvent Atoms	126
Heterogen Atoms	31

Software

Software
Software Name	Purpose
MERLOT	phasing
CCP4	refinement
DENZO	data reduction
SCALEPACK	data scaling