Experiment: 1GWA

Triiodide derivative of porcine pancreas elastase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5		PROTEIN SOLN: 5% PPE IN 0.1M CH3COONA PH5.0, 0.02% NAN3 RESERVOIR: 10MM CH3COONA, 10MM NASO4 DROP:5UL PROTEIN SOLN + 5UL RESERVOIR SITTING DROP VAPOUR DIFFUSION, pH 5.00

Crystal Properties
Matthews coefficient	Solvent content
2.05	40.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.574	α = 90
b = 57.899	β = 90
c = 74.761	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	RIGAKUMSC	OSMIC MIRRORS	2001-10-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300

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	1.85	26.726	99.2	0.105	0.105	6.6	12.5		241027		6

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)
1	1.85	1.95	95		0.344	0.344	2.1	7.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	OTHER	THROUGHOUT	1.85	26.68	19184	983	99.2	0.171	0.169	0.1776	0.205	0.2211	RANDOM

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1822
Nucleic Acid Atoms
Solvent Atoms	180
Heterogen Atoms	29

Software

Software
Software Name	Purpose
BUSTER-TNT	refinement
d*TREK	data reduction
SCALA	data scaling