1C50

IDENTIFICATION AND STRUCTURAL CHARACTERIZATION OF A NOVEL ALLOSTERIC BINDING SITE OF GLYCOGEN PHOSPHORYLASE B

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.7		PHOSPHORYLASE B-CP320626 COMPLEX WAS CO-CRYSTALLISED UNDER CONDITIONS SIMILAR TO THOSE DESCRIBED BY ZOGRAPHOS ET AL., (1997) STRUCTURE 5, 1413-1425., pH 6.7

Crystal Properties
Matthews coefficient	Solvent content
2.49	48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 129.174	α = 90
b = 127.174	β = 90
c = 116.22	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	287	IMAGE PLATE	MAR scanner 180 mm plate		1999-07-15	M	SINGLE WAVELENGTH

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

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	2.3	30	96.3	0.11	6.8	3.8		42617

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	2.3	2.34	91		0.445	1.7

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	R FREE	2.3	30	40437		96.3	0.199	0.199	0.246	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
x_dihedral_angle_d	25.6
x_mcangle_it	2
x_scangle_it	2
x_mcbond_it	1.5
x_scbond_it	1.5
x_angle_deg	1.4
x_improper_angle_d	0.7
x_bond_d	0.008
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6749
Nucleic Acid Atoms
Solvent Atoms	256
Heterogen Atoms	46

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing