5HQ8 | pdb_00005hq8

Co-crystal Structure of human SMYD3 with a MEKK2 peptide at 2.13A

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	295	Human SMYD3 (1-428) with SAM in the SAM-binding site was concentrated to 11.7 mg/mL in 25 mM Tris-HCl pH 8 and 150 mM NaCl. Peptide (21st Century Biochemical) was solubilized in 100mM water. Two ul peptide was added to 200 ul of protein (five fold molar excess of peptide) and allowed to complex with the protein overnight at 4C. Crystals were obtained from a Hampton Index HT broad screen in sitting drops at 22C with condition H7 (0.15 DL-malic acid pH 7.0, 20% w/v PEG 3,350). Crystals were flash frozen in 20 percent ethylene glycol in well solution prior to data collection

Crystal Properties
Matthews coefficient	Solvent content
2.63	53.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.109	α = 90
b = 118.155	β = 90.61
c = 84.782	γ = 90

Symmetry
Space Group	P 1 21 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	CCD	MARMOSAIC 300 mm CCD		2014-11-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	1.07808	APS	21-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.592	50	99.8	16.11	3.6		138107

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1.72	25.43	1.36	110414	5551	99.78	0.1755	0.1741	0.1754	0.2011	0.2027

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
f_dihedral_angle_d	13.623
f_angle_d	1.419
f_chiral_restr	0.091
f_bond_d	0.018
f_plane_restr	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6774
Nucleic Acid Atoms
Solvent Atoms	717
Heterogen Atoms	90

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing