2R2B

Crystal structure of S25-2 Fab in complex with Kdo analogues

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	300	PEG 4000, ethelyene glycol, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 300K

Crystal Properties
Matthews coefficient	Solvent content
2.54	51.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.89	α = 90
b = 81.66	β = 90
c = 131.55	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	100	IMAGE PLATE	RIGAKU RAXIS		2007-04-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.54

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	1.6	19.92	95.7	0.044	11.8	3.03		63260

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)
	1.6	1.66	99.1		0.267	3.6	3.1	6423

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	1.6	20	63237	3212	95.67	0.232	0.231	0.253	RANDOM	19.985

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]
0.64			-0.38		-0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.215
r_dihedral_angle_4_deg	17.935
r_dihedral_angle_3_deg	12.63
r_dihedral_angle_1_deg	6.261
r_scangle_it	2.965
r_scbond_it	2.137
r_angle_refined_deg	1.406
r_mcangle_it	1.372
r_mcbond_it	0.846
r_nbtor_refined	0.301
r_nbd_refined	0.214
r_symmetry_vdw_refined	0.181
r_symmetry_hbond_refined	0.171
r_xyhbond_nbd_refined	0.124
r_chiral_restr	0.096
r_metal_ion_refined	0.031
r_symmetry_metal_ion_refined	0.028
r_bond_refined_d	0.012
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3335
Nucleic Acid Atoms
Solvent Atoms	312
Heterogen Atoms	51

Software

Software
Software Name	Purpose
d*TREK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction