Experiment: 4YTA

BOND LENGTH ANALYSIS OF ASP, GLU AND HIS RESIDUES IN TRYPSIN AT 1.2A RESOLUTION

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1N6X	PDB ENTRY 1N6X

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8	298	25% PEG8000, 0.2 M AMMONIUM SULFATE, 0.1 M TRIS-HCL, PH 8.0, VAPOR DIFFUSION, TEMPERATURE 298K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.357	α = 90
b = 58.079	β = 90
c = 66.899	γ = 90

Symmetry
Space Group	P 21 21 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	MARMOSAIC 225 mm CCD		2009-10-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.98	ESRF	ID23-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.2	33.45	97.4	6.3	3.2		65730		2

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)
1	1.2	1.26	95.5		0.149	4.5	3.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	PDB ENTRY 1N6X	1.2	33.45	1.35	65730	3299	97.4	0.106	0.105	0.1038	0.121	0.1204

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]
-2.1473			0.8983		1.249

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.043
f_angle_d	1.559
f_chiral_restr	0.092
f_bond_d	0.011
f_plane_restr	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1629
Nucleic Acid Atoms
Solvent Atoms	337
Heterogen Atoms	74

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
MLPHARE	phasing
PHENIX	refinement