2H6K

Histone H3 recognition and presentation by the WDR5 module of the MLL1 complex

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ALS BEAMLINE 5.0.2
Synchrotron site	ALS
Beamline	5.0.2
Temperature [K]	100
Detector technology	CCD
Collection date	2006-01-15
Detector	ADSC QUANTUM 315
Wavelength(s)	0.98720
Spacegroup name	C 1 2 1
Unit cell lengths	133.473, 46.521, 112.110
Unit cell angles	90.00, 116.86, 90.00

Refinement procedure

Resolution	43.300 - 1.890
R-factor	0.14865
Rwork	0.146
R-free	0.18972
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1erj
RMSD bond length	0.011
RMSD bond angle	1.261
Data scaling software	HKL-2000
Phasing software	CNS
Refinement software	REFMAC (5.2.0005)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	43.300	1.970
High resolution limit [Å]	1.900	1.900
Rmerge	0.071	0.255
Number of reflections	47173
<I/σ(I)>	16.2	3.82
Completeness [%]	98.9	92.9
Redundancy	3.2	2.5

Crystallization Conditions

crystal ID	method	pH	temperature	details
1				Crystals were grown by hanging drop vapour equilibration in Nextal plates as follows: 1 ul of 10 15 mg ml-1 protein solution (10 mM Tris, HCl (pH 7.4), 50 mM NaCl, and 10 mM 2-mercaptoethanol) were mixed with 1 ul of well solution composed of 50 mM HEPES (pH 7.5), 100 mM potassium formate, and 10-20% (w/v) polyethylene glycol 3350 and equilibrated at room temperature overnight against 1 ml of well solution.