Experiment: 1MAV

CRYSTAL STRUCTURE OF THE RESPONSE REGULATOR DIVK AT PH 6.0 IN COMPLEX WITH MN2+

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		APO-DIVK SOLVED AT PH6

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING OR SITTING-DROP	6	285	MES 50mM PH6.0, PEG MME 550 32% AT 285K. The Protein Was Concentrated at 2 MG/ML In MES-NAOH PH 6.00 (20 mM), DTT (5 mM) And Mixed With An Equal Volume Of The Reservoir Solution Containing PEG MME 550 (32%), MES PH 6.00 (40 mM), DTT (5 mM). Crystal Size (300X40X40 microM3) In 20microL Sitting Drops. Manganese Derivative Was Obtained By Soaking For 24 Hours. Protein Crystals In The Reservoir Solution Were Supplemented With 20 Mm MnCl2 (PH 6.00).Crystals Were Frozen In Liquid Propane After Soaking For A Few Seconds In PEG MME 550 (50%), MES PH 6.00 (40 mM)., VAPOR DIFFUSION, HANGING OR SITTING-DROP

Crystal Properties
Matthews coefficient	Solvent content
1.8	31

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.84	α = 90
b = 41.02	β = 90
c = 67.01	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	IMAGE PLATE	MAR scanner 345 mm plate		1999-06-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LURE BEAMLINE DW32	0.963	LURE	DW32

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	1.6	26	97.1	0.04	8.3	3.3		13445			20

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	1.6	1.69	94.8		0.178	3.9	3.1	5740

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	APO-DIVK SOLVED AT PH6	1.6	20	13445	13445	1339	92.8	0.208	0.2065	0.223	0.223	RANDOM	20.1

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]
-0.08			-0.34		0.41

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.3
c_scangle_it	2.41
c_scbond_it	1.67
c_mcangle_it	1.65
c_angle_deg	1.2
c_mcbond_it	1.07
c_improper_angle_d	0.65
c_bond_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	899
Nucleic Acid Atoms
Solvent Atoms	83
Heterogen Atoms	2

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
CNS	refinement
CCP4	data scaling
CNS	phasing