1ELM

CADMIUM-SUBSTITUTED BOVINE PACREATIC CARBOXYPEPTIDASE A (ALFA-FORM) AT PH 5.5 AND 2 MM CHLORIDE IN MONOCLINIC CRYSTAL FORM.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICRODIALYSIS	5.5	293	Lithium chloride, Tris-HNO3, Cadmium chloride, pH 5.50, MICRODIALYSIS, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.12	32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.163	α = 90
b = 60.244	β = 97.41
c = 51.746	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	292	IMAGE PLATE	RIGAKU RAXIS IIC		1997-09-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	40	96.2	0.068	19.6	4.7		18818			15.4

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)
	2.01	2.05	82.2		0.165	7.6	3.3

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	5CPA	2	40	18818	909	96.2	0.161	0.161	0.186	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
c_scangle_it	2.19
c_scbond_it	1.51
c_mcangle_it	1.3
c_angle_deg	1.25
c_mcbond_it	0.86
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2420
Nucleic Acid Atoms
Solvent Atoms	189
Heterogen Atoms	2

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement
DENZO	data reduction