4NCY

In situ trypsin crystallized on a MiTeGen micromesh with imidazole ligand

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4I8G	PDB ENTRY 4I8G

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	In situ crystallization on micromesh	7	277	30mg/ml+10mg/ml Benzenmidine in 20mM HEPES pH 7 and 10mM CaCl2; precipitant is 20% PEG 8000 + 200mM AmSO4 + 100mM Bis-Tris, In situ crystallization on micromesh, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.392	α = 90
b = 58.186	β = 90
c = 66.43	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	PIXEL	DECTRIS PILATUS 6M		2013-08-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.1	NSLS	X25

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	1.42	43.77	99.86	0.043	46.31	5.9	38208	38155	2	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)
1	1.42		99.86		0.043	46.31	5.9	38208

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 4I8G	1.42	43.77	38155	2012	99.86	0.11915	0.11811	0.13849	RANDOM	10.881

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]
0.08			-0.32		0.23

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.428
r_dihedral_angle_4_deg	18.087
r_dihedral_angle_3_deg	11.279
r_dihedral_angle_1_deg	7.133
r_long_range_B_refined	6.72
r_long_range_B_other	5.815
r_scangle_other	3.268
r_angle_refined_deg	2.785
r_scbond_it	2.309
r_scbond_other	2.308
r_mcangle_it	1.526
r_mcangle_other	1.526
r_angle_other_deg	1.067
r_mcbond_it	1.048
r_mcbond_other	1.048
r_chiral_restr	0.15
r_bond_refined_d	0.028
r_gen_planes_refined	0.013
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1629
Nucleic Acid Atoms
Solvent Atoms	417
Heterogen Atoms	64

Software

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