Experiment: 4AIE

Structure of glucan-1,6-alpha-glucosidase from Lactobacillus acidophilus NCFM

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2ZIC	PDB ENTRY 2ZIC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				20% GLYCEROL, 16% PEG 8K, 0.1 M MES PH 6.5

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.83	α = 90
b = 107.25	β = 90
c = 103.61	γ = 90

Symmetry
Space Group	P 21 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	100	CCD	MARRESEARCH	MIRRORS	2009-09-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I911-2		MAX II	I911-2

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	2.05	30	97.2	0.05	25.5	5.3		39496		-3	16.68

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	2.05	2.1	91.2		0.21	9.7	4.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2ZIC	2.05	29.424	1.99	39494	1997	99.21	0.1395	0.1371	0.132	0.1834	0.1777	17.4

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]
-3.7132			5.269		-1.5558

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.56
f_angle_d	1.237
f_chiral_restr	0.078
f_bond_d	0.01
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4426
Nucleic Acid Atoms
Solvent Atoms	475
Heterogen Atoms	77

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing