1WEJ

IGG1 FAB FRAGMENT (OF E8 ANTIBODY) COMPLEXED WITH HORSE CYTOCHROME C AT 1.8 A RESOLUTION

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1QBL	2.26 A RESOLUTION FABE8 X-RAY STRUCTURE (FREE FAB E8) (MYLVAGANAM ET AL., 1998, JMB, 281, 301-32; PDB ENTRY 1QBL) AND HORSE CYTOCHROME C 1.9 A X-RAY STRUCTURE (BUSHNELL ET. AL., 1990; PDB ENTRY 1HRC).
experimental model	PDB	1HRC	2.26 A RESOLUTION FABE8 X-RAY STRUCTURE (FREE FAB E8) (MYLVAGANAM ET AL., 1998, JMB, 281, 301-32; PDB ENTRY 1QBL) AND HORSE CYTOCHROME C 1.9 A X-RAY STRUCTURE (BUSHNELL ET. AL., 1990; PDB ENTRY 1HRC).

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.4		50MM ZINC ACETATE BUFFER, PH 6.4, 25% (W/V) PEG 4000.

Crystal Properties
Matthews coefficient	Solvent content
2.2	42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.58	α = 90
b = 72.54	β = 90
c = 94.38	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	MARRESEARCH		1995-01-16	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1		SSRL	BL7-1

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	1.8	50	94.1	0.084	36.6	5		48348			18.06

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)
	1.8	1.86	99.5		0.282	12

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	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	2.26 A RESOLUTION FABE8 X-RAY STRUCTURE (FREE FAB E8) (MYLVAGANAM ET AL., 1998, JMB, 281, 301-32; PDB ENTRY 1QBL) AND HORSE CYTOCHROME C 1.9 A X-RAY STRUCTURE (BUSHNELL ET. AL., 1990; PDB ENTRY 1HRC).	1.8	10	47993		94.1	0.2	0.2	0.256	21.96

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]
-1.942			-2.042		2.07

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	27.4
x_improper_angle_d	1.54
x_angle_deg	1.47
x_bond_d	0.009
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	4166
Nucleic Acid Atoms
Solvent Atoms	637
Heterogen Atoms	43

Software

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