2WCY

NMR solution structure of factor I-like modules of complement C7.

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D 13C EDITED NOESY	90% H2O, 10% D2O		20MM K PHOSPHATE	6.5		298.0
2	3D 15N EDITED NOESY	90% H2O, 10% D2O		20MM K PHOSPHATE	6.5		298.0
3	3D 13C EDITED NOESY IN 100% D2O	90% H2O, 10% D2O		20MM K PHOSPHATE	6.5		298.0

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
SIMULATED ANNEAILING, RESTRAINED MOLECULAR DYNAMICS	REFINEMENT DETAILS CAN BE FOUND IN THE PRIMARY CITATION. THE PROTEIN HAS BEEN SHOWN BY MASS SPECTROMETRY TO CONTAIN NINE DISULPHIDE BONDS FORMED FROM THE EIGHTEEN CYSTEINES PRESENT. THE NMR DATA CLEARLY IDENTIFIES THE DISULPHIDE BOND PATTERN OF SEVEN OF THESE NINE DISULPHIDE BONDS HOWEVER, DUE TO THE PROXIMITY OF THE REMAINING FOUR CYSTEINES TO THE FLEXIBLE REGION, THE COMPLETE DISULPHIDE BINDING PATTERN CANNOT BE UNAMBIGUOUSLY DETERMINED. HOMOLOGY EVIDENCE STRONGLY FAVOURS ONE LINKAGE PATTERN OVER THE OTHER TWO POSSIBILITIES AND THIS IS CLEARLY STATED IN THE ASSOCIATED PUBLICATION; THIS LINKAGE PATTERN WAS USED TO GENERATE NMR MODELS 1-25 IN THE ENSEMBLE. MODELS 26-48 WERE CALCULATED BY ALLOWING FOR ANY COMBINATION OF LINKAGES FOR THE TWO AMBIGUOUS DISULPHIDE BONDS AND, DUE TO THE INHERENT FLEXIBILITY IN THIS REGION, A MIXTURE OF ALL OF THE THREE POSSIBLE LINKAGES WAS GENERATED.	CNS

NMR Ensemble Information
Conformer Selection Criteria	CONVERGED DATASETS OF 100 STRUCTURES EACH (1-25 AND 26-48)
Conformers Calculated Total Number	200
Conformers Submitted Total Number	48
Representative Model	1 (n/a)

Additional NMR Experimental Information
Details	THE STRUCTURE WAS DETERMINED USING TRIPLE-RESONANCE NMR SPECTROSCOPY ON 13C, 15N-LABELED C7-FIMS. FURTHER ACQUISITION DETAILS AVAILABLE AT BIOMAGRESBANK ACCESSION NO. 15996.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CNS	1.2	BRUNGER,ADAMS,CLORE,DELANO,GROS, GROSSE- KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,READ, RICE,SIMONSON,WARREN
2	structure solution	TopSpin	1.3
3	structure solution	CcpNmr Analysis	1.0.15
4	structure solution	CYANA	2.1
5	structure solution	CNS	1.2