2CYG

Crystal structure at 1.45- resolution of the major allergen endo-beta-1,3-glucanase of banana as a molecular basis for the latex-fruit syndrome

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1GHS

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	293	Sodium formate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.034	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.27	α = 90
b = 53.93	β = 90
c = 113.55	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	CCD	ADSC QUANTUM 4		2002-12-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.933	ESRF	ID14-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.45	20	97.7	0.035	0.035	13.4	3.6	53238	52014			10.46

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.45	1.5	97.7		0.129	0.129	5.6	3.6	4819

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	1GHS	1.45	20	52014	49317	2644	97.4	0.15835	0.15835	0.15722	0.1794	RANDOM	14.92

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.01
r_scangle_it	1.938
r_scbond_it	1.206
r_angle_refined_deg	1.095
r_angle_other_deg	0.787
r_mcangle_it	0.761
r_mcbond_it	0.384
r_nbd_other	0.229
r_nbd_refined	0.195
r_symmetry_vdw_other	0.188
r_symmetry_hbond_refined	0.124
r_xyhbond_nbd_refined	0.118
r_symmetry_vdw_refined	0.097
r_nbtor_other	0.078
r_chiral_restr	0.067
r_bond_refined_d	0.006
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2395
Nucleic Acid Atoms
Solvent Atoms	407
Heterogen Atoms

Software

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