2CJ8

Crystal Structure of a Cell Wall Invertase Inhibitor from Tobacco (pH 9.5)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1RJ1	PDB ENTRY 1RJ1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		9.5		18 % PEG 4000, 0.1 M TRICINE PH 9.5, 0.2 M NAI

Crystal Properties
Matthews coefficient	Solvent content
2.1	39.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.05	α = 90
b = 50.22	β = 90
c = 131.38	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	MARRESEARCH		2003-02-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7A		EMBL/DESY, HAMBURG	BW7A

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	2.38	19.21	100	0.12	13.6	7.1		11192		-3

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	2.38	2.58	99.7		0.45	4.4	7.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1RJ1	2.38	19.21	10602	558	100	0.202	0.198	0.2	0.273	0.28	RANDOM	37.44

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]
-0.17			1.33		-1.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.058
r_dihedral_angle_3_deg	18.177
r_dihedral_angle_4_deg	16.784
r_dihedral_angle_1_deg	7.015
r_scangle_it	2.611
r_scbond_it	1.707
r_angle_refined_deg	1.542
r_mcangle_it	1.065
r_angle_other_deg	0.917
r_mcbond_it	0.627
r_nbd_refined	0.247
r_symmetry_hbond_refined	0.245
r_xyhbond_nbd_refined	0.23
r_symmetry_vdw_other	0.204
r_nbd_other	0.18
r_nbtor_refined	0.168
r_symmetry_vdw_refined	0.152
r_mcbond_other	0.133
r_nbtor_other	0.091
r_chiral_restr	0.084
r_bond_refined_d	0.016
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2134
Nucleic Acid Atoms
Solvent Atoms	50
Heterogen Atoms	18

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing