2VC4

Ricin A-Chain (Recombinant) E177D Mutant

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.2		pH 4.2

Crystal Properties
Matthews coefficient	Solvent content
2.7	48

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.4	α = 90
b = 67.4	β = 90
c = 140.7	γ = 90

Symmetry
Space Group	P 41 21 2

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	MARRESEARCH	MIRRORS	2000-06-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I711		MAX II	I711

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	1.39	30	91.6	0.03	41.6	4		60577		-3	13.8

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	1.39	1.44	82.2		0.11	6.8	3.1

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1IFT	1.39	29.49	58150	2427	92.1	0.183	0.182	0.199	RANDOM	16.92

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]
0.41			0.41		-0.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.492
r_dihedral_angle_4_deg	22.138
r_dihedral_angle_3_deg	13.07
r_dihedral_angle_1_deg	5.203
r_scangle_it	4.101
r_scbond_it	2.69
r_mcangle_it	1.611
r_angle_refined_deg	1.419
r_mcbond_it	1.016
r_nbtor_refined	0.315
r_symmetry_vdw_refined	0.224
r_nbd_refined	0.217
r_xyhbond_nbd_refined	0.133
r_chiral_restr	0.095
r_symmetry_hbond_refined	0.087
r_bond_refined_d	0.012
r_gen_planes_refined	0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_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	2078
Nucleic Acid Atoms
Solvent Atoms	404
Heterogen Atoms	16

Software

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