Experiment: 5F3B

Structure of myostatin in complex with chimeric RK35 antibody

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2GCY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	291	Chimeric RK35 Fab and myostatin were purified and the protein complex was concentrated to 10.75 mg/ml in a buffer of 50 mM tris hydrochloride pH 7.5 and 100 mM sodium chloride. Crystals were obtained using the hanging drop method with equilibration at 18C against a solution containing 20% PEG MME 5000 and 100 mM bis-tris pH 6.5

Crystal Properties
Matthews coefficient	Solvent content
2.67	53.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.09	α = 78.98
b = 67.616	β = 88.77
c = 78.559	γ = 67.44

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93	CCD	ADSC QUANTUM 315		2010-08-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0	APS	22-ID

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	1.76	100			1		104791

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2GCY	1.76	49.17	104791	5240	85.86	0.1807	0.1794	0.1783	0.2057	0.2049	RANDOM	27.43

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]
-5.5467	-2.0072	4.7724	4.4801	3.6055	1.0666

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8174
Nucleic Acid Atoms
Solvent Atoms	1047
Heterogen Atoms	30

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
AMoRE	phasing