Experiment: 1TQE

Mechanism of recruitment of class II histone deacetylases by myocyte enhancer factor-2

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1EGW	Structure of MEF2A and DNA complex, pdb entry 1egw

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.35	315	BTP, PEG, NaCl, glycerol, MgCl2, CaCl2, pH 6.35, VAPOR DIFFUSION, HANGING DROP, temperature 315K

Crystal Properties
Matthews coefficient	Solvent content
2.54	49.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.797	α = 76.67
b = 66.93	β = 71.83
c = 66.967	γ = 71.81

Symmetry
Space Group	P 1

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	RIGAKU RAXIS IV	mirrors	2003-08-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

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	2.7	30	91.3	0.04	0.034	63	3.3	19058	17405	2	2

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)
	2.7	2.8	95		0.227	0.124	5.5	2.9	1823

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	throughtout	Structure of MEF2A and DNA complex, pdb entry 1egw	2.7	30	2	2	19058	17405	1512	91.3	0.263	0.2768	0.289	random	88.2

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]
37.368	14.727	12.962	-18.424	-11.474	-18.944

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	5.974
c_mcangle_it	5.656
c_scbond_it	3.487
c_mcbond_it	3.417

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3348
Nucleic Acid Atoms	1382
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
CrystalClear	data collection
SCALEPACK	data scaling
CNS	refinement
CrystalClear	data reduction
CNS	phasing