1K3Z

X-ray crystal structure of the IkBb/NF-kB p65 homodimer complex

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	ROTATING ANODE
Source details	RIGAKU RU200
Temperature [K]	110
Detector technology	AREA DETECTOR
Collection date	2000-04-15
Detector	MARRESEARCH
Wavelength(s)	1.5418
Spacegroup name	P 1
Unit cell lengths	46.400, 48.920, 59.470
Unit cell angles	95.17, 91.80, 105.45

Refinement procedure

Resolution	30.000 - 2.500
Rwork	0.181
R-free	0.27900 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	IkBalpha/p65dd (pdb entry 1ikn)
RMSD bond length	0.007
RMSD bond angle	1.340 *
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	AMoRE
Refinement software	CNS

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	30.000	2.600
High resolution limit [Å]	2.500	2.500
Rmerge	0.079	0.253
Total number of observations	110726 *
Number of reflections	16126 *
<I/σ(I)>	7.9	3
Completeness [%]	93.0 *	72
Redundancy	7

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	5.6 *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	reservoir	PEG8000	8-10 (%)
2	1	reservoir	sodium citrate		pH5.6