Experiment: 2FH8

Crystal Structure Analysis of Klebsiella pneumoniae pullulanase complexed with isomaltose

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	293	15-25% polyethyleneglycol 6000 in 0.2M magnesium acetate, 0.2M sodium acetate buffer, The crystal was soaked with 300mM isomaltose for 30 min at 20 deg.C, followed by flash-freezing in a nitrogen gas stream at 100K without any cryo-protectant., pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.38	48.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 149.525	α = 90
b = 60.32	β = 112.62
c = 134.019	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV		2000-06-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL24XU	0.836	SPring-8	BL24XU

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	1.9	50	93.8	0.07	14.5	2.97	87941	82489			12.6

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)
	1.9	2	92.9		0.153	3.5	1.89	11537

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	THROUGHOUT	1.9	15	71023	7158	81.6	0.177	0.177	0.1743	0.221	0.2171	RANDOM	28.7

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]
-5.59		2.8	-2.11		7.69

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.4
c_scangle_it	2.62
c_scbond_it	1.93
c_mcangle_it	1.78
c_angle_deg	1.3
c_mcbond_it	1.21
c_improper_angle_d	0.74
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7130
Nucleic Acid Atoms
Solvent Atoms	1079
Heterogen Atoms	27

Software

Software
Software Name	Purpose
CNS	refinement
PHASES	phasing