2JD7

Crystal Structure of the Fe-soaked Ferritin from the Hyperthermophilic Archaeal Anaerobe Pyrococcus furiosus

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ESRF BEAMLINE BM14
Synchrotron site	ESRF
Beamline	BM14
Temperature [K]	100
Detector technology	CCD
Collection date	2006-06-25
Detector	MARRSEARCH
Spacegroup name	C 2 2 21
Unit cell lengths	254.301, 342.878, 266.221
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	204.120 - 2.800
R-factor	0.201
Rwork	0.199
R-free	0.25000
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	REFINED 2JD6 COORDINATES
RMSD bond length	0.014
RMSD bond angle	1.467
Data reduction software	MOSFLM
Data scaling software	SCALA
Refinement software	REFMAC (5.3.0021)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	42.000	2.950
High resolution limit [Å]	2.800	2.800
Rmerge	0.080	0.350
Number of reflections	280407
<I/σ(I)>	8.2	2
Completeness [%]	99.1	94.1
Redundancy	3.6	2.6

Crystallization Conditions

crystal ID	method	pH	temperature	details
1				THE CRYSTALS USED FOR DATA COLLECTION WERE GROWN AGAINST 0.5 ML OF 2 M AMMONIUM SULPHATE RESERVOIR SOLUTION, WITH DROPS CONTAINING 2 MICRO-L OF 5 MG/ML PROTEIN SOLUTION IN 50 MM HEPES, PH 7 AND EQUAL AMOUNT OF THE RESERVOIR SOLUTION. IRON SOAKING OF FERRITIN CRYSTALS WAS PERFORMED BY TRANSFERRING THEM TO A 10-20 MICRO-L DROP OF A SOLUTION WITH COMPOSITION 20 MM FESO4, 2 MM NA2S2O4, 25 % GLYCEROL AND 2 M AMMONIUM SULFATE, FOR 15 MINUTES.