1D5Q

SOLUTION STRUCTURE OF A MINI-PROTEIN REPRODUCING THE CORE OF THE CD4 SURFACE INTERACTING WITH THE HIV-1 ENVELOPE GLYCOPROTEIN

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	H2O AND D2O			3.5	1 atm	298
2	DQF-COSY	H2O AND D2O			3.5	1 atm	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	600

NMR Refinement
Method	Details	Software
SIMULATED ANNEALING, MOLECULAR DYNAMICS	THE STRUCTURE IS BASED ON A TOTAL OF 239 DISTANCE RESTRAINTS, 46 ANGULAR RESTRAINTS, AND 9 ADDITIONAL RESTRAINTS FOR THE DISULFIDE BRIDGES	Gifa

NMR Ensemble Information
Conformer Selection Criteria	LOWEST ENERGY
Conformers Calculated Total Number	40
Conformers Submitted Total Number	1
Representative Model	1 (closest to the average, fewest violations, lowest energy)

Additional NMR Experimental Information
Details	ADDITIONAL EXPERIMENTS (2D NOESY, 2D DQF-COSY) RECORDED AT 35 C

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	Gifa	4.22	PONS, J.L.,MALLIAVIN, T., DELSUC, M.A.
2	data analysis	Gifa	4.22	PONS, J.L.,MALLIAVIN, T., DELSUC, M.A.
3	structure solution	X-PLOR	3.1	BRUNGER, A.T.
4	refinement	X-PLOR	3.1	BRUNGER, A.T.

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.