Experiment: 2KIQ

Solution structure of the FF Domain 2 of human transcription elongation factor CA150

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1 mM [U-100% 15N] CA150 FF2-1	90% H2O/10% D2O	25	7.0	ambient	303
2	2D 1H-13C HSQC	1 mM [U-100% 13C; U-100% 15N] CA150 FF2-2	100% D2O	25	7.0	ambient	303
3	3D HNCA	1 mM [U-100% 15N] CA150 FF2-1	90% H2O/10% D2O	25	7.0	ambient	303
4	3D HNCACB	1 mM [U-100% 15N] CA150 FF2-1	90% H2O/10% D2O	25	7.0	ambient	303
5	3D HNCO	1 mM [U-100% 15N] CA150 FF2-1	90% H2O/10% D2O	25	7.0	ambient	303
6	3D HCCH-TOCSY	1 mM [U-100% 13C; U-100% 15N] CA150 FF2-2	100% D2O	25	7.0	ambient	303
7	3D HN(CO)CA	1 mM [U-100% 15N] CA150 FF2-1	90% H2O/10% D2O	25	7.0	ambient	303
8	3D HN(COCA)CB	1 mM [U-100% 15N] CA150 FF2-1	90% H2O/10% D2O	25	7.0	ambient	303
9	3D 1H-15N NOESY	1 mM [U-100% 15N] CA150 FF2-1	90% H2O/10% D2O	25	7.0	ambient	303
10	3D 1H-13C NOESY	1 mM [U-100% 13C; U-100% 15N] CA150 FF2-2	100% D2O	25	7.0	ambient	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	600
2	Varian	INOVA	800

NMR Refinement
Method	Details	Software
GLOBAL FOLD COMPUTATION BASED ON EXACT SOLUTIONS FROM RDCS, NOE ASSIGNMENT BASED ON HAUSDORFF-BASED PATTERN MATCHING, ENERGY-MINIMIZATION	1. ORIENTATIONS AND CONFORMATIONS OF SECONDARY STRUCTURE ELEMENTS WERE CALCULATED USING THE RDC-EXACT MODULE, WHICH EXACTLY SOLVES A SYSTEM OF QUARTIC RDC EQUATIONS AND COMPUTES THE GLOBAL OPTIMAL SOLUTIONS OF BACKBONE DIHEDRAL ANGLES. 2. THE PACKER MODULE WAS USED TO DETERMINE THE TRANSLATIONS BETWEEN SECONDARY STRUCTURE ELEMENTS USING A SPARSE SET OF NOE DISTANCE RESTRAINTS. THE HANA MODULE WAS USED TO COMPUTE NOE ASSIGNMENTS BASED ON A HAUSDORFF-BASED PATTERN MATCHING TECHNIQUE. THE STRUCTURES WERE REFINED AGAINST RESIDUAL DIPOLAR COUPLINGS USING XPLOR-NIH AND A WATER-REFINEMENT PROTOCOL.	RDC-PANDA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy and acceptable covalent geometry
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	noe assignment	RDC-PANDA	1.0	RDC-PANDA (AUTHORS: J. ZENG, J. BOYLES, C. TRIPATHY, L. WANG, A. YAN, P. ZHOU AND B.R. DONALD)
2	exact solutions for backbone conformations from rdcs	RDC-PANDA	1.0	RDC-PANDA (AUTHORS: J. ZENG, J. BOYLES, C. TRIPATHY, L. WANG, A. YAN, P. ZHOU AND B.R. DONALD)
3	packing secondary structure elements using sparse noes, and computing global fold	RDC-PANDA	1.0	RDC-PANDA (AUTHORS: J. ZENG, J. BOYLES, C. TRIPATHY, L. WANG, A. YAN, P. ZHOU AND B.R. DONALD)
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
5	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
6	data analysis	CARA		Keller and Wuthrich