3B9K

Crystal structure of CD8alpha-beta in complex with YTS 156.7 FAB

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	sitting drop	6.2	296	PEG 8000, 0.1 M Na/K phosphate, 0.2 M NaCl, pH 6.2, sitting drop, temperature 296K

Crystal Properties
Matthews coefficient	Solvent content
2.78	55.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.779	α = 90
b = 92.747	β = 90
c = 190.31	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93.2	CCD	ADSC QUANTUM 315		2005-07-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.97945	SSRL	BL11-1

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	2.7	50	97.5	0.131	9.6			45395			70.8

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	2.7	2.8	99.8		0.579	2.17		4468

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.7	42.33	42077	42077	2216	97.57	0.238	0.235	0.284	RANDOM	55.349

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]
-3.44			2.26		1.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.958
r_dihedral_angle_4_deg	16.609
r_dihedral_angle_3_deg	15.508
r_dihedral_angle_1_deg	7.612
r_scangle_it	6.595
r_scbond_it	5.145
r_mcangle_it	2.847
r_mcbond_it	2.452
r_angle_refined_deg	1.576
r_angle_other_deg	0.907
r_mcbond_other	0.324
r_symmetry_vdw_refined	0.312
r_symmetry_vdw_other	0.277
r_symmetry_hbond_refined	0.244
r_nbd_refined	0.238
r_nbd_other	0.215
r_nbtor_refined	0.188
r_xyhbond_nbd_refined	0.172
r_nbtor_other	0.091
r_chiral_restr	0.086
r_xyhbond_nbd_other	0.083
r_bond_refined_d	0.015
r_bond_other_d	0.007
r_gen_planes_refined	0.005
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10234
Nucleic Acid Atoms
Solvent Atoms	36
Heterogen Atoms	28

Software

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