1LY8

The crystal structure of a mutant enzyme of Coprinus cinereus peroxidase provides an understanding of its increased thermostability and insight into modelling of protein structures

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	277	1.6M ammonium sulphate, 0.1M 2-(N- Morpholino)ethanesulfonic acid, pH 6.2, VAPOR DIFFUSION, HANGING DROP at 277K

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.49	α = 90
b = 114.86	β = 90
c = 73.61	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	IMAGE PLATE	MARRESEARCH		2001-04-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711	1.08535	MAX II	I711

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	2.05	20	84.9	0.086	0.086		3.1	40181	35855		-3	5.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.05	2.1	91.6		0.186	0.186

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.05	19.91	35855	33983	1687	84.6	0.204	0.202	0.202	0.249	RANDOM	16

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]
-5.34			6.26		-0.92

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.8
c_angle_deg	1.4
c_improper_angle_d	0.97
c_mcangle_it	0.88
c_scangle_it	0.87
c_scbond_it	0.57
c_mcbond_it	0.55
c_bond_d	0.014
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4930
Nucleic Acid Atoms
Solvent Atoms	637
Heterogen Atoms	234

Software

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