Experiment: 1BA2

D67R MUTANT OF D-RIBOSE-BINDING PROTEIN FROM ESCHERICHIA COLI

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2DRI	SEARCH MODELS REPRESENTING ALL NON-HYDROGEN ATOMS FROM DOMAIN 1 (RESIDUES 1-103 AND 236-264) AND DOMAIN 2 (RESIDUES 104-235 AND 265-271) OF PDB ENTRY 2DRI WERE USED SEPARATELY.

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7		VAPOR DIFFUSION OF DROPS CONTAINING 7.5 MG/ML PROTEIN AGAINST A RESERVOIR OF 24% PEG4000, 100 MM TRIS-HCL, PH 7., pH 7.0, vapor diffusion

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.801	α = 90
b = 89.944	β = 90
c = 112.276	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	90	IMAGE PLATE	RIGAKU RAXIS IIC	MIRROR	1996-03-26	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R

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	2.1	19	94.9	0.038	21.3	3.36		27352		-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)
	2.1	2.2	70		0.097	7.6	2.04

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-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	SEARCH MODELS REPRESENTING ALL NON-HYDROGEN ATOMS FROM DOMAIN 1 (RESIDUES 1-103 AND 236-264) AND DOMAIN 2 (RESIDUES 104-235 AND 265-271) OF PDB ENTRY 2DRI WERE USED SEPARATELY.	2.1	19	27352		94.9	0.199	0.2074	0.279	0.2703	RANDOM

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4347
Nucleic Acid Atoms
Solvent Atoms	337
Heterogen Atoms

Software

Software
Software Name	Purpose
X-PLOR	model building
REFMAC	refinement
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing