1PUO

Crystal structure of Fel d 1- the major cat allergen

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.8	293	MPD, sodium acetate, pH 4.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.97	37.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.29	α = 90
b = 51.539	β = 95.27
c = 67.725	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	MARRESEARCH		2002-09-14	M	SINGLE WAVELENGTH
2	1	x-ray	110	CCD	ADSC QUANTUM 4		2002-11-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711	1.13	MAX II	I711
2	SYNCHROTRON	ESRF BEAMLINE ID29	0.979	ESRF	ID29

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
1,2	1.85	24.5	98.4	0.089	9.7	2.8		25173			18

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)
	1.85	1.95	99.7		0.46	2.5	2.7	3511

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.85	24.04	24247	1298	99.98	0.2027	0.20275	0.20087	0.23731	RANDOM	16.598

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]
2.34		0.01	-0.96		-1.38

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	4.991
r_scangle_it	3.233
r_scbond_it	1.897
r_angle_refined_deg	1.268
r_mcangle_it	1.236
r_angle_other_deg	0.8
r_mcbond_it	0.65
r_nbd_other	0.222
r_symmetry_hbond_refined	0.217
r_nbd_refined	0.206
r_xyhbond_nbd_refined	0.185
r_symmetry_vdw_other	0.166
r_symmetry_vdw_refined	0.139
r_nbtor_other	0.084
r_chiral_restr	0.071
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2202
Nucleic Acid Atoms
Solvent Atoms	265
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
SOLVE	phasing
RESOLVE	phasing