1IC2 | pdb_00001ic2

DECIPHERING THE DESIGN OF THE TROPOMYOSIN MOLECULE

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.6	277	PEG 200, isopropanol, magnesium chloride, ammonium acetate, TRIS, pH 7.6, VAPOR DIFFUSION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.73	54.89

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 41.4	α = 93.7
b = 45.5	β = 98.1
c = 56.3	γ = 104.4

Symmetry
Space Group	P 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 4			M	SINGLE WAVELENGTH
2	1	100	IMAGE PLATE	MARRESEARCH
3	1	100	IMAGE PLATE	MARRESEARCH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE A1	0.908	CHESS	A1
2	SYNCHROTRON	NSLS BEAMLINE X12C	1.15	NSLS	X12C
3	SYNCHROTRON	NSLS BEAMLINE X12C	0.92	NSLS	X12C

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	50	99.9	0.087	15.4	10	26797	26797			31.1

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	2.1	99.5		0.139	10	7.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	THROUGHOUT	2	50	26793	26793	1326	99.9	0.2488	0.3071	0.2835	0.3042	Random	43.8603

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]
-6.688	0.656	-0.959	9.71	7.436	-3.022

RMS Deviations
Key	Refinement Restraint Deviation
c_angle_deg	0.87827
c_bond_d	0.00658

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2492
Nucleic Acid Atoms
Solvent Atoms	178
Heterogen Atoms

Software

Software
Software Name	Purpose
MLPHARE	phasing
CNS	refinement
DENZO	data reduction
CCP4	data scaling