1Y55

Crystal structure of the C122S mutant of E. Coli expressed avidin related protein 4 (AVR4)-biotin complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.2	293	2M sodium formate, 0.1M sodium acetate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.97	58.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.173	α = 90
b = 78.173	β = 90
c = 110.26	γ = 90

Symmetry
Space Group	P 41 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	CCD	ADSC QUANTUM 4		2004-06-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.9393	ESRF	ID14-4

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	40	98.5				180289	1	1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1	1.02	88.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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 Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	1	40	171169	9038	98.3	0.167	0.16566	0.16508	0.17	0.1766	RANDOM	10.802

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]
-0.17			-0.17		0.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	7.003
r_sphericity_free	3.393
r_scangle_it	2.993
r_sphericity_bonded	2.864
r_scbond_it	2.169
r_mcangle_it	1.79
r_angle_refined_deg	1.723
r_rigid_bond_restr	1.21
r_mcbond_it	1.078
r_angle_other_deg	0.847
r_chiral_restr	0.45
r_symmetry_vdw_other	0.27
r_nbd_other	0.262
r_nbd_refined	0.206
r_symmetry_hbond_refined	0.175
r_xyhbond_nbd_refined	0.128
r_symmetry_vdw_refined	0.106
r_nbtor_other	0.088
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_gen_planes_other	0.004
r_bond_other_d	0.003
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_mcbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1894
Nucleic Acid Atoms
Solvent Atoms	240
Heterogen Atoms	44

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
CCP4	data scaling