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How to evaluate a recent structure? Solution Structure of Enzyme IIA Chitobiose from theN,N’-Diacetylchitobiose Branch of the Escherichia coli Phosphotransferase System Chun Tang, David C. Williams, Jr., Rodolfo Ghirlando, and G. Marius Clore J.Biol.Chem . 280, 11770–11780, (2005) How to evaluate a structure? The Ramachadran Plot & ProCheck NMR The Ramachadran Plot & ProCheck NMR The Ramachadran Plot & ProCheck NMR New Long Range Distance Constraints - the RDC RDC = residual dipolar coupling

J.Biol.Chem . 280 , 11770Ð11780, (2005)cl23/Cindy/Notes/New_Methods.pdf · ofthe principal component of the alignment tensor and n is the rhombiclty (71). For a trimer the alignment

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Page 1: J.Biol.Chem . 280 , 11770Ð11780, (2005)cl23/Cindy/Notes/New_Methods.pdf · ofthe principal component of the alignment tensor and n is the rhombiclty (71). For a trimer the alignment

How to evaluate a recent structure?

Solution Structure of Enzyme IIAChitobiose from theN,N’-Diacetylchitobiose Branch of the Escherichia coli Phosphotransferase System

Chun Tang, David C. Williams, Jr., Rodolfo Ghirlando, and G. Marius Clore

J.Biol.Chem . 280, 11770–11780, (2005)

How to evaluate a structure?

The Ramachadran Plot & ProCheck NMR

The Ramachadran Plot & ProCheck NMR

The Ramachadran Plot & ProCheck NMR

New Long Range Distance Constraints - the RDC

RDC = residual dipolar coupling

Page 2: J.Biol.Chem . 280 , 11770Ð11780, (2005)cl23/Cindy/Notes/New_Methods.pdf · ofthe principal component of the alignment tensor and n is the rhombiclty (71). For a trimer the alignment

New Long Range Distance Constraints - the RDC

New Methods - TROSY

TROSY = Transverse Relaxation Optimized SpectroscopY

New Methods -TROSY

New Methods - deuteration of proteins [1H -> 2H]

New Methods - 2H

Large Proteins - specific methyl labeling, 2H, TROSY, 4D NMR

Page 3: J.Biol.Chem . 280 , 11770Ð11780, (2005)cl23/Cindy/Notes/New_Methods.pdf · ofthe principal component of the alignment tensor and n is the rhombiclty (71). For a trimer the alignment

Large Proteins - specific methyl labeling, 2H, TROSY, 4D NMR

Large Proteins - specific methyl labeling, 2H, TROSY, 4D NMR

Large Proteins - specific methyl labeling, 2H, TROSY, 4D NMR

Large Proteins - specific methyl labeling, 2H, TROSY, 4D NMR

Large Proteins - specific methyl labeling, 2H, TROSY, 4D NMR,CH3 <-> NH NOE’s

All protons only NH’s NH’s and some CH3’s

back exchanged into 2H protein selective labeling

Hard proteins like membrane proteins - Phospholamban

Page 4: J.Biol.Chem . 280 , 11770Ð11780, (2005)cl23/Cindy/Notes/New_Methods.pdf · ofthe principal component of the alignment tensor and n is the rhombiclty (71). For a trimer the alignment

Phospholamban

Phospholamban

Phospholamban