1CF9

Structure of the mutant VAL169CYS of catalase HPII from Escherichia coli

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		9		pH 9

Crystal Properties
Matthews coefficient	Solvent content
2.4	50

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 93.47	α = 90
b = 133.04	β = 109.64
c = 122.22	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				1998-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE X11		EMBL/DESY, HAMBURG	X11

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	1.77	20	88.3	0.083	9	9.6	3		250445		3	13.6

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	1.77	1.79	86.7		0.46	2.1	2

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	THROUGHOUT	1IPH	1.8	20	240437	240437		88.3	0.1811	0.237	RANDOM	13.5

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]
-1.12	-2.43			3.65	1.11

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	31.5
p_staggered_tor	14.9
p_planar_tor	4.7
p_multtor_nbd	0.254
p_scangle_it	0.193
p_singtor_nbd	0.179
p_xyhbond_nbd	0.176
p_scbond_it	0.172
p_mcangle_it	0.164
p_chiral_restr	0.163
p_mcbond_it	0.147
p_planar_d	0.036
p_angle_d	0.033
p_plane_restr	0.013
p_bond_d	0.0014
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	22976
Nucleic Acid Atoms
Solvent Atoms	2686
Heterogen Atoms	172

Software

Software
Software Name	Purpose
CCP4	model building
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing