Experiment: 1KRE

STRUCTURE OF P. CITRINUM ALPHA 1,2-MANNOSIDASE REVEALS THE BASIS FOR DIFFERENCES IN SPECIFICITY OF THE ER AND GOLGI CLASS I ENZYMES

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1KKT	PDB ENTRY 1KKT

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	293	PEG 6000, potassium phosphate, pH 4.60, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.487	α = 90
b = 110.997	β = 99.17
c = 86.235	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	293	AREA DETECTOR	MARRESEARCH	MIRRORS	2000-04-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	2.03	50	93.2	0.091	0.091	16.8	3.55	63769	63769

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.03	2.15	73.8		0.615

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1KKT	2.2	50	49145	49145	4961		0.2021	0.2021	0.1981	0.2429	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	7448
Nucleic Acid Atoms
Solvent Atoms	198
Heterogen Atoms	258

Software

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