3LCH | pdb_00003lch

The D-sialic acid aldolase mutant V251R

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1NAL	PDB enrty 1NAL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	2.0M ammonium sulfate, 0.1M Bis-Tris, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.03	59.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.139	α = 90
b = 122.139	β = 90
c = 198.893	γ = 120

Symmetry
Space Group	P 32 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	CCD	ADSC QUANTUM 210	vertically focusing mirror	2009-04-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSRRC BEAMLINE BL13C1	0.97622	NSRRC	BL13C1

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	2.04	30	99.8	0.074	30.4	6.1	109845	109625		1

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)
	2.04	2.11	100		0.458	3.7	6.1	10837

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation 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-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB enrty 1NAL	2.04	28.2	102529	97351	5178	88.9	0.19189	0.19189	0.1904	0.1897	0.2202	0.219	RANDOM	32.298

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]
-4.45	-3.947		-4.45		8.901

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	2.869
c_scbond_it	1.982
c_mcangle_it	1.74
c_angle_deg	1.26811
c_mcbond_it	1.172
c_bond_d	0.00541

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9123
Nucleic Acid Atoms
Solvent Atoms	891
Heterogen Atoms	20

Software

Software
Software Name	Purpose
Blu-Ice	data collection
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing