4WXV | pdb_00004wxv

Human cationic trypsin K97D mutant in complex with bovine pancreatic trypsin inhibitor (BPTI)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2RA3

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	0.2M ammonium sulfate, 0.1 sodium cacodylate trihydrate, 30% PEG-8000

Crystal Properties
Matthews coefficient	Solvent content
2.28	45.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.853	α = 90
b = 56.575	β = 90
c = 228.58	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	ADSC QUANTUM 1		2012-02-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	0.979	NSLS	X29A

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	2.1	38.1	98.1	0.077	15.9	5.5		32877

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	2.1		85.3		0.256	4.24	4.1

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2RA3	2.1	38.1	31212	1665	97.83	0.219	0.2157	0.2212	0.2809	0.2817	RANDOM	25.878

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]
-0.25			-0.11		0.36

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.997
r_dihedral_angle_4_deg	17.305
r_dihedral_angle_3_deg	15.752
r_dihedral_angle_1_deg	6.894
r_angle_refined_deg	1.795
r_angle_other_deg	0.863
r_chiral_restr	0.106
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3816
Nucleic Acid Atoms
Solvent Atoms	76
Heterogen Atoms	22

Software

Software
Software Name	Purpose
HKL-2000	data reduction
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data scaling