1E4X

crossreactive binding of a circularized peptide to an anti-TGFalpha antibody Fab-fragment

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		TAB2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5		PROTEIN IN TRIS-HCL, 8.5, 6-10 MG/ML PRECIPITANT: 12% PEG 8000, 20 MM NA-ACETATE, pH 8.50

Crystal Properties
Matthews coefficient	Solvent content
2.5	40.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 173.82	α = 90
b = 45.09	β = 99.13
c = 120.41	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	XRAY RESEARCH		1999-06-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MPG/DESY, HAMBURG BEAMLINE BW6		MPG/DESY, HAMBURG	BW6

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	1.9	20	92.9	0.038	29.7	5.2		68086			22.7

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	1.9	1.97	82.8		0.257	2.4	1.7

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	TAB2	1.9	20	68086	3427	94.6	0.245	0.311	RANDOM	36

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
p_transverse_tor	22.8
p_staggered_tor	19.3
p_planar_tor	7.6
p_scangle_it	2.705
p_mcangle_it	2.425
p_scbond_it	1.85
p_mcbond_it	1.625
p_multtor_nbd	0.245
p_singtor_nbd	0.19
p_chiral_restr	0.167
p_planar_d	0.06
p_angle_d	0.036
p_bond_d	0.013
p_plane_restr	0.0119
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_xyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6708
Nucleic Acid Atoms
Solvent Atoms	407
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing