1BR5

RICIN A CHAIN (RECOMBINANT) COMPLEX WITH NEOPTERIN

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.9		pH 8.9

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.81	α = 90
b = 68.79	β = 112.83
c = 50.09	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	298	AREA DETECTOR	SDMS		1995-12-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	2.24	20	92	0.0717	8.3	5.8		11996

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)
	2.24	2.41	75		0.183	2.3	2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	PDB ENTRY 1RTC	2.5	10	2	8854		96.3	0.194	0.194

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
x_dihedral_angle_d	25.95
x_angle_deg	3.255
x_mcangle_it	2
x_scangle_it	2
x_mcbond_it	1.5
x_scbond_it	1.5
x_improper_angle_d	1.377
x_bond_d	0.016
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2114
Nucleic Acid Atoms
Solvent Atoms	55
Heterogen Atoms	18

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
UCSD-system	data reduction
UCSD-system	data scaling
X-PLOR	phasing