1GA1

CRYSTAL STRUCTURE ANALYSIS OF PSCP (PSEUDOMONAS SERINE-CARBOXYL PROTEINASE) COMPLEXED WITH A FRAGMENT OF IODOTYROSTATIN (THIS ENZYME RENAMED "SEDOLISIN" IN 2003)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	0.1 M sodium chloride, 5 mM calcium chloride, 1.4 M lithium sulfate, 0.1 M Tris buffer pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.92	57.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.19	α = 90
b = 97.19	β = 90
c = 83.37	γ = 120

Symmetry
Space Group	P 62

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	focussing mirror	2000-05-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X9B	0.92	NSLS	X9B

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	1.4	30	99.9	0.036	50.2	7.7	87947	87947	-3	-3	12.2

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	1.4	1.45	99.5		0.216	7	7.7	8711

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SINGLE-WAVELENGTH ANOMALOUS DIFFRACTION	1.4	30	-999	-999	87947	81364	8107		0.1129	0.108	0.113	0.1358	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]

RMS Deviations
Key	Refinement Restraint Deviation
s_non_zero_chiral_vol	0.089
s_zero_chiral_vol	0.079
s_angle_d	0.029
s_from_restr_planes	0.028
s_bond_d	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2726
Nucleic Acid Atoms
Solvent Atoms	422
Heterogen Atoms	8

Software

Software
Software Name	Purpose
HKL-2000	data collection
HKL-2000	data reduction
SHELXD	phasing
SHARP	phasing
DM	model building
WARP	model building
SHELXL-97	refinement
HKL-2000	data scaling
DM	phasing
ARP/wARP	model building

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.