6OZB

Crystal structure of the phycoerythrobilin-bound GAF domain from a cyanobacterial phytochrome

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 21-ID-G
Synchrotron site	APS
Beamline	21-ID-G
Temperature [K]	100
Detector technology	CCD
Collection date	2016-12-25
Detector	RAYONIX MX-300
Wavelength(s)	0.979
Spacegroup name	P 31 2 1
Unit cell lengths	78.967, 78.967, 209.299
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	33.746 - 1.800
R-factor	0.153
Rwork	0.152
R-free	0.19370
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	3w2z
RMSD bond length	0.013
RMSD bond angle	1.404
Data reduction software	HKL-2000
Data scaling software	HKL-2000
Phasing software	PHENIX
Refinement software	PHENIX (1.9_1692)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	50.000	50.000	1.830
High resolution limit [Å]	1.800	4.880	1.800
Rmerge	0.078	0.038	0.629
Rmeas	0.088	0.043	0.713
Rpim	0.039	0.019	0.329
Total number of observations	274187
Number of reflections	61064	3835	2503
<I/σ(I)>	8.4
Completeness [%]	85.8	99.2	71.6
Redundancy	4.5	4.9	4.2
CC(1/2)		0.998	0.774

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	PEG 4000, ammonium acetate, sodium citrate tribasic dihydrate. Crystal was set up under green safety light and grown in dark