1YV3

The structural basis of blebbistatin inhibition and specificity for myosin II

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	278	100 mM MOPS (pH 7.0), 250 mM MgCl2, 11% PEG 8000, 1 mM TCEP, 2 mM Thymol, 1 mM MgCl2, 2 mM ADP, and 3 mM sodium vanadate, VAPOR DIFFUSION, HANGING DROP, temperature 278K

Crystal Properties
Matthews coefficient	Solvent content
2.82	56.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.106	α = 90
b = 145.77	β = 90
c = 152.912	γ = 90

Symmetry
Space Group	C 2 2 21

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	MAR CCD 165 mm		2004-08-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 32-ID	0.708	APS	32-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	40	99.8	0.062	24	5.8		63478			33.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2	2.07	98.2		0.269	3.7	5.1	63478

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 1VOM	2	40	63478	3388	99.51	0.17514	0.17514	0.17298	0.21498	RANDOM	20.417

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]
0.29			0.51		-0.8

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.928
r_scangle_it	4.756
r_scbond_it	3.059
r_mcangle_it	2.072
r_angle_refined_deg	1.685
r_mcbond_it	1.174
r_angle_other_deg	1.07
r_symmetry_vdw_other	0.326
r_metal_ion_refined	0.25
r_nbd_other	0.248
r_nbd_refined	0.226
r_symmetry_hbond_refined	0.205
r_xyhbond_nbd_refined	0.185
r_symmetry_vdw_refined	0.126
r_chiral_restr	0.116
r_nbtor_other	0.089
r_bond_refined_d	0.022
r_gen_planes_other	0.013
r_gen_planes_refined	0.011
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5481
Nucleic Acid Atoms
Solvent Atoms	678
Heterogen Atoms	60

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing