3QZU | pdb_00003qzu

Crystal structure of Bacillus subtilis Lipase A 7-fold mutant; the outcome of directed evolution towards thermostability

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1I6W	PDB ENTRY 1I6W

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	293	24% (w/v) PEG 3350, 0.2 M (NH4)2)SO4, 0.1 M BisTris-HCl, 0.03 M BES-NaOH, 0.03% (w/v) NaN3, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.66	53.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.163	α = 90
b = 45.511	β = 101.1
c = 77.613	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	100	CCD	MARMOSAIC 225 mm CCD	mirrors	2010-06-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.8726	ESRF	ID23-2

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	1.71	45.51	98.3	0.159	6.8	4.1	43880	43134		3	16.9

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	1.71	1.81	88.2		0.822	1.5	3.3	18453

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 (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 ENTRY 1I6W	1.85	76.16	33215	32229	1700	97.03	0.17525	0.17274	0.1728	0.22275	0.2227	RANDOM	13.792

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]
-0.6		0.37	0.15		0.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.835
r_dihedral_angle_3_deg	10.42
r_dihedral_angle_4_deg	10
r_dihedral_angle_1_deg	5.851
r_scangle_it	3.238
r_scbond_it	1.967
r_mcangle_it	1.145
r_angle_refined_deg	1.107
r_mcbond_it	0.621
r_chiral_restr	0.078
r_bond_refined_d	0.011
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2700
Nucleic Acid Atoms
Solvent Atoms	482
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement