3MYL

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	8	277	12.5% MePEG5K, 117mM ammonium acetate, 100mM Hepps, 2mM MgCl2, 2mM sodium pyrophosphate , pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.92	57.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 104.045	α = 90
b = 180.779	β = 90
c = 53.89	γ = 90

Symmetry
Space Group	P 21 21 2

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 315	mirrors	2008-02-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.00707	APS	19-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	2	30	99.8	0.115	0.115	17.6	7.7	69055	69055			19.7

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)
	2	2.07	98.6		0.406	0.406	3.9	7.8	6769

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	2	29.69	69055	65472	3483	98.71	0.18757	0.18757	0.18456	0.24378	RANDOM	22.093

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]
0.4			0.34		-0.74

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.369
r_dihedral_angle_4_deg	17.446
r_dihedral_angle_3_deg	16.437
r_dihedral_angle_1_deg	6.772
r_scangle_it	5.084
r_scbond_it	3.403
r_mcangle_it	2.152
r_angle_refined_deg	1.958
r_mcbond_it	1.271
r_chiral_restr	0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.369
r_dihedral_angle_4_deg	17.446
r_dihedral_angle_3_deg	16.437
r_dihedral_angle_1_deg	6.772
r_scangle_it	5.084
r_scbond_it	3.403
r_mcangle_it	2.152
r_angle_refined_deg	1.958
r_mcbond_it	1.271
r_chiral_restr	0.16
r_bond_refined_d	0.026
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5917
Nucleic Acid Atoms
Solvent Atoms	736
Heterogen Atoms	10

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.