2WY2

NMR structure of the IIAchitobiose-IIBchitobiose phosphoryl transition state complex of the N,N'-diacetylchitoboise brance of the E. coli phosphotransferase system.

SOLUTION NMR

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	500
2	Bruker	DMX	600
3	Bruker	DRX	600
4	Bruker	DRX	800
5	Bruker	DRX	900

NMR Refinement
Method	Details	Software
	THE STRUCTURE WAS SOLVED ON THE BASIS OF THE COORDINATES OF THE UNPHOSPHORYLATED COMPLEX 2WWV. TO SOLVE THE TRANSITION STATE COMPLEX, THE COORDINATES OF THE UNPHOSPHORYLATED COMPLEX 2WWV ARE HELD FIXED WITH THE EXCEPTION OF THE ACTIVE SITE LOOP OF IIBCHB, THE ACTIVE SITE OF IIACHB, THE PHOSPHORYL GROUP, AND INTERFACIAL SIDE CHAINS IN THE IMMEDIATE VICINITY OF THE ACTIVE SITE AND THE PHOSPHORYL GROUP WHICH ARE GIVEN TORSION DEGREES OF FREEDOM. THE ACTIVE SITE LOOP OF IIBCHB COMPRISES RESIDUES 9-16 OF CHAIN D. THE ACTIVE SITE REGION OF IIACHB COMPRISES RESIDUES 74 TO 79 OF CHAINS A, B AND C. THE EXPERIMENTAL NMR RESTRAINTS ARE IDENTICAL TO THOSE USED TO CALCULATE 2WWV EXCEPT FOR THE DIPOLAR COUPLINGS WHICH WERE OBTAINED FROM FREE PHOSPHORYLATED IIBCHB. FOR FURTHER DETAILS SEE THE JNRL CITATION ABOVE.	Xplor-NIH

NMR Ensemble Information
Conformer Selection Criteria
Conformers Calculated Total Number	64
Conformers Submitted Total Number	64
Representative Model	1 (n/a)

Additional NMR Experimental Information
Details	NONE

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	Xplor-NIH	2.23	SCHWIETERS,KUSZEWSKI,CLORE

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.