2HFF

Crystal structure of CB2 Fab

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2HG9	chains A,B from pdb 2HG9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				Crystals were grown in hanging drops with 1:1 ratio of protein to well solution consisting of 100 mM Hepes, pH 7.5, 20% PEG 10K, and then frozen in mother liquor with 25% PEG 400

Crystal Properties
Matthews coefficient	Solvent content
2.42	49.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.71	α = 109.42
b = 72.985	β = 100.96
c = 89.919	γ = 96.1

Symmetry
Space Group	P 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	CUSTOM-MADE		2004-06-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID		APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.95	50	98	0.074	6.9	3.4	63805	63805		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.95	2.02	91.8		0.366	1.8	2.5	6014

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	chains A,B from pdb 2HG9	1.95	30	63790	57365	6425	97.66	0.19229	0.19229	0.18907	0.22079	RANDOM	36.246

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]
1.36	0.33		0.1	0.57	-1.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.667
r_dihedral_angle_4_deg	20.308
r_dihedral_angle_3_deg	15.204
r_dihedral_angle_1_deg	6.021
r_scangle_it	3.519
r_mcangle_it	3.331
r_mcbond_it	2.616
r_scbond_it	2.462
r_angle_refined_deg	1.192
r_angle_other_deg	0.721
r_mcbond_other	0.471
r_symmetry_hbond_refined	0.419
r_symmetry_vdw_other	0.233
r_nbd_refined	0.185
r_nbd_other	0.18
r_symmetry_vdw_refined	0.179
r_nbtor_refined	0.172
r_xyhbond_nbd_refined	0.14
r_nbtor_other	0.08
r_chiral_restr	0.074
r_bond_refined_d	0.008
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6389
Nucleic Acid Atoms
Solvent Atoms	150
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
AMoRE	phasing