Experiment: 1MU4

CRYSTAL STRUCTURE AT 1.8 ANGSTROMS OF THE BACILLUS SUBTILIS CATABOLITE REPRESSION HISTIDINE CONTAINING PROTEIN (CRH)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1MO1	pdb entry 1MO1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	297	ammonium sulfate, peg 1000,, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
3.71	66.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.85	α = 90
b = 68.85	β = 90
c = 119.86	γ = 90

Symmetry
Space Group	P 43 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	297	IMAGE PLATE	MARRESEARCH		2001-05-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF		ESRF

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	29.85	99.6	0.055	0.055	8.5	4.1	27502	27502		-3	22

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	1.86	99.3		0.318	0.318	1.9	3.4	2112

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 1MO1	1.8	29.85	-3	27478	27441	1342	99.9	0.196	0.179	0.179	0.18	0.197	0.1973	RANDOM	31.5

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]
0.22			0.22		-0.43

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24.5
c_scangle_it	9.91
c_scbond_it	6.74
c_mcangle_it	4.02
c_mcbond_it	2.98
c_angle_deg	1.4
c_improper_angle_d	1.2
c_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1330
Nucleic Acid Atoms
Solvent Atoms	122
Heterogen Atoms	15

Software

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