2OVG

Lambda Cro Q27P/A29S/K32Q triple mutant at 1.35 A in space group P3221

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	1.5 M lithium sulfate, 0.1 M Na Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.524	α = 90
b = 50.524	β = 90
c = 48.148	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 4	mirrors	2005-06-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X26C	0.96	NSLS	X26C

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	1.35	50	97.7	0.067	14.5	3.4	15657	15657			17.6

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	1.35	1.4	96.5		0.54	2.96	3.2	1513

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 6CRO protein portion	1.35	43.77	15657	15657	788	97.77	0.134	0.132	0.171	RANDOM	9.781

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]
0.33	0.16		0.33		-0.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.046
r_sphericity_free	12.283
r_dihedral_angle_3_deg	11.487
r_dihedral_angle_4_deg	10.031
r_scangle_it	6.999
r_scbond_it	5.912
r_sphericity_bonded	4.867
r_dihedral_angle_1_deg	4.062
r_mcangle_it	3.57
r_mcbond_it	3.035
r_rigid_bond_restr	2.511
r_angle_refined_deg	1.29
r_mcbond_other	1.169
r_angle_other_deg	0.877
r_nbd_refined	0.234
r_nbd_other	0.191
r_nbtor_refined	0.182
r_symmetry_vdw_other	0.175
r_symmetry_hbond_refined	0.156
r_xyhbond_nbd_refined	0.135
r_symmetry_vdw_refined	0.135
r_chiral_restr	0.096
r_nbtor_other	0.077
r_bond_refined_d	0.01
r_bond_other_d	0.006
r_gen_planes_refined	0.005
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	454
Nucleic Acid Atoms
Solvent Atoms	108
Heterogen Atoms	11

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection