1QMJ

CG-16, a homodimeric agglutinin from chicken liver

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	5.6		CRYSTALS WERE OBTAINED IN HANGING OR SITTING DROPS BY MIXING EQUAL VOLUMES OF THE PROTEIN SOLUTION (10 MG/ML) AND THE PRECIPITATING BUFFER (2M AMMONIUM SULPHATE, 5% (V/V) ISOPROPANOL AND 1% BETA-MERCAPTO ETHANOL, PH 5.6)

Crystal Properties
Matthews coefficient	Solvent content
2.8	55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 71.38	α = 90
b = 82.6	β = 90
c = 112.76	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE	MARRESEARCH		1999-02-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.15	30	87.8	0.0307	0.056	7.8	4.2		15244		2	31.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.15	2.25	75		0.0451	0.204	4	3.8

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 1SLA	2.15	8	15047	1051	87.5	0.185	0.185	0.254	RANDOM	33.6

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	27.4
x_scangle_it	2.8
x_scbond_it	2.2
x_mcangle_it	2.1
x_angle_deg	1.477
x_mcbond_it	1.3
x_improper_angle_d	1.127
x_bond_d	0.007
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	2062
Nucleic Acid Atoms
Solvent Atoms	130
Heterogen Atoms	16

Software

Software
Software Name	Purpose
X-PLOR	refinement
MOSFLM	data reduction
SCALA	data scaling
X-PLOR	phasing