Experiment: 1JA2

BINDING OF N-ACETYLGLUCOSAMINE TO CHICKEN EGG LYSOZYME: A POWDER DIFFRACTION STUDY

POWDER DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	precipitation	4.8	296	rapid precipitation from 0.5M NACL IN PH 5.0 0.05M KHPHTHALATE/NAOH BUFFER, at 296K, pH 4.8

Crystal Properties
Matthews coefficient	Solvent content
2.07	40.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.569	α = 90
b = 78.569	β = 90
c = 38.513	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		296	SCINTILLATOR		2MM X 8MM BEAM	2000-10-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X3B1	0.700030	NSLS	X3B1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.87	40.03	100			3112	3112

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1RFP	2.87	40.03	3112	3112		100			23.7

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
o_angle_deg	1.71
o_bond_d	0.027

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1001
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
PROCESS	data reduction
GSAS	refinement
PROCESS	data scaling