2QJZ

Structural Basis of Microtubule Plus End Tracking by XMAP215, CLIP-170 and EB1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	11.5% 2-propanol, 190 mM Sodium citrate, 100 mM Hepes, Protein concentration 20 mg/ml, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.72

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 29.334	α = 90
b = 65.22	β = 96.24
c = 63.091	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	ADSC QUANTUM 210		2001-10-10	M	MAD
2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	0.9798, 1.1271, 0.7999	ALS	8.3.1

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	1.25	50	97.4	0.054	5.4	13.8			63420

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)
	1.25	1.29	95.7		0.321	32.1	3.2		5181

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.25	45.22	63420	6318	97.32	0.177	0.174	0.198	RANDOM	12.271

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]
-0.03			0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.235
r_dihedral_angle_4_deg	14.908
r_dihedral_angle_3_deg	12.164
r_dihedral_angle_1_deg	4.434
r_scangle_it	3.209
r_sphericity_free	2.779
r_sphericity_bonded	2.474
r_scbond_it	2.269
r_mcangle_it	1.55
r_rigid_bond_restr	1.461
r_angle_refined_deg	1.033
r_mcbond_it	0.999
r_nbtor_refined	0.311
r_nbd_refined	0.196
r_symmetry_vdw_refined	0.176
r_xyhbond_nbd_refined	0.096
r_symmetry_hbond_refined	0.085
r_chiral_restr	0.076
r_bond_refined_d	0.008
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1974
Nucleic Acid Atoms
Solvent Atoms	302
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
CNS	phasing
CNS	refinement
DENZO	data reduction
PDB_EXTRACT	data extraction
Blu-Ice	data collection