Experiment: 1EJI

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.7	295	8% PEG 8000, 6% ETHYLENE GLYCOL, 0.1 M HEPES, pH 7.7, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K

Crystal Properties
Matthews coefficient	Solvent content
3.33	62.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 142.52	α = 90
b = 142.52	β = 90
c = 270.9	γ = 90

Symmetry
Space Group	P 43 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	CCD	ADSC QUANTUM 4	MIRROR	1999-05-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F1		CHESS	F1

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	2.9	32.1	92.8	0.203	3.4	10.6		57974			78.8

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)
	2.9	3.06	100		2.38	0.3	10.9

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	RABBIT SHMT (1CJ0) DIMER, WITH 2 PLP COFACTORS. EACH MONOMER WAS MODIFIED BY: OMISSION OF RESIDUES 269-287 (IN THE HUMAN SHMT NUMBERING SCHEME; LABELED 241-250 IN THE 1CJ0 ENTRY), CONVERSION OF ALL MET RESIDUES TO SEMET, AND CONVERSION TO ALANINE OF RESIDUES WHICH DIFFER BETWEEN RABBIT AND MOUSE, I.E. RESIDUES 16, 20, 35, 68, 88, 94, 175, 177, 182, 185, 191, 220, 237, 322, 326, 329, 332, 343, 361, 416, 433, 437-439, 441-442, 458, 460, 463, 467, 471, 475, AND 477 IN THE HUMAN SHMT NUMBERING SCHEME.	2.9	32.1	62472	57357	5780	91.7	0.228	0.271	0.228	RANDOM	84.6

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]
12.79			12.79		-25.57

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.6
c_angle_deg	1.4
c_improper_angle_d	0.9
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	14780
Nucleic Acid Atoms
Solvent Atoms	22
Heterogen Atoms	182

Software

Software
Software Name	Purpose
AMoRE	phasing
CNS	refinement
DPS	data reduction
MOSFLM	data reduction
CCP4	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.