Experiment: 6CTC

Crystal structure of human transferrin bound to Triferic FPC iron pyrophosphate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4H0W

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	291	Apo human transferrin (ProSpec pro-325 purified by Q-sepharose) at 56 mg/mL (0.76 mM) against Morpheus screen condition D4 12.5% PEG 1000, 12.5% PEG3350, 12.5% MPD, 0.02 M each 1,6-hexanediol, 1-butanol, RS-1,2-propanediol, 2-propanol, 1,4-butanediol, 1,3-propanediol, 0.1 M MES/imidazole pH 6.5, crystal tracking ID 246352d4, unique puck ID suv0-5

Crystal Properties
Matthews coefficient	Solvent content
2.46	49.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.37	α = 90
b = 90.16	β = 90
c = 110.43	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	CCD	MARMOSAIC 300 mm CCD		2013-07-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	2.6	34.376	99.9	0.045	0.049	1	31.55	7.038		23450			55.43

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.67	100		0.484	0.522	0.929	4.7	7.248

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation 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 (Depositor)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4h0w	2.6	34.376	1.36	23438	1204	99.91	0.1838	0.1801	0.2532	0.2427	58.6775

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5026
Nucleic Acid Atoms
Solvent Atoms	62
Heterogen Atoms	15

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction