1GPO

CRYSTAL STRUCTURE OF THE RATIONALLY DESIGNED ANTIBODY M41 AS A FAB FRAGMENT

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		HYBRID FAB FRAGMENT CONSISTING OF THE MODELLED STRUCTURE FOR THE ARTIFICIAL FV FRAGMENT M41 AND CONSTANT DOMAINS OF THE ANTI-LYSOZYME ANTIBODY HYHEL-10

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		2.0 M AMMONIUM SULFATE, 5 % DMSO, 0.1 M CACODYLATE PH 6.5

Crystal Properties
Matthews coefficient	Solvent content
2.94	58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.47	α = 90
b = 103.51	β = 90
c = 113.6	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	100	IMAGE PLATE	RIGAKU		1995-03-01	M

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)	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	1.95	60	84.6	0.065		2.6		69136		0.5

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)
1	1.95	2	50.2		0.215		1.5

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	MOLECULAR REPLACEMENT	HYBRID FAB FRAGMENT CONSISTING OF THE MODELLED STRUCTURE FOR THE ARTIFICIAL FV FRAGMENT M41 AND CONSTANT DOMAINS OF THE ANTI-LYSOZYME ANTIBODY HYHEL-10	1.95	8	2	67792		81.3	0.214	0.214	0.283	28.8

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	28.3
x_angle_deg	1.75
x_improper_angle_d	1.58
x_bond_d	0.011
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
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6622
Nucleic Acid Atoms
Solvent Atoms	649
Heterogen Atoms	10

Software

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