3MYK

Insights into the Importance of Hydrogen Bonding in the Gamma-Phosphate Binding Pocket of Myosin: Structural and Functional Studies of Ser236

X-RAY DIFFRACTION

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	277	12% PEG8K, 250mM MgCl2, 100mM MOPS, 2mM AMPPNP, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.86	57.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.005	α = 90
b = 147.021	β = 90
c = 153.425	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	3.3 Undulator	2005-11-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 32-ID	0.97885	APS	32-ID

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	1.84	28.91	98.7	0.051	0.051	35.7	6	84770	84770			24

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	1.84	1.91	97.6		0.152	0.152	5.3	4.6	8291

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1.84	28.91	84770	80524	4234	98.63	0.19458	0.19458	0.1927	0.23009	RANDOM	26.866

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]
-0.1			1.54		-1.44

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.766
r_dihedral_angle_4_deg	17.727
r_dihedral_angle_3_deg	14.436
r_dihedral_angle_1_deg	6.981
r_scangle_it	4.95
r_scbond_it	3.305
r_mcangle_it	2.194
r_angle_refined_deg	2.045
r_mcbond_it	1.335
r_chiral_restr	0.182

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.766
r_dihedral_angle_4_deg	17.727
r_dihedral_angle_3_deg	14.436
r_dihedral_angle_1_deg	6.981
r_scangle_it	4.95
r_scbond_it	3.305
r_mcangle_it	2.194
r_angle_refined_deg	2.045
r_mcbond_it	1.335
r_chiral_restr	0.182
r_bond_refined_d	0.026
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5540
Nucleic Acid Atoms
Solvent Atoms	445
Heterogen Atoms	54

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.