SOLUTION NMR Experimental Data


Experimental Details
Sample Conditions
Spectrometer Information
Manufacturer Model Field Strength
Bruker AMX 500 500.0
NMR Refinement
Method RESTRAINED MOLECULAR DYNAMICS
Details INITIAL COORDINATES FOR IL-8 WERE TAKEN FROM PDB ENTRY 1IL8; A LINEAR CHAIN FOR THE CXCR-1 FRAGMENT WAS BUILT IN INSIGHT (MSI). THE CXCR-1 FRAGMENT WAS POSITIONED RANDOMLY WITH RESPECT TO IL8 - OBTAIN 40 STARTING CONFORMATIONS. THE INITIAL STRUCTURES WERE THEN REFINED USING RMD WITH THE AMBER ALL ATOM FORCE FIELD AS IMPLIMENTED WITHIN DISCOVER. ALL OF IL8 MONOMER B AND PARTS OF IL8 MONOMER A (2-7, 22-38 AND 51-72) WERE KEPT FIXED DURING THE REFINEMENT SINCE CHEMICAL SHIFT CHANGES INDICATED THAT THESE PORTION OF THE MOLECULE WERE NOT PERTURBED BY PEPTIDE BINDING. THIS MODEL IS THE RESULT OF RESTRAINED ENERGY MINIMIZATION OF THE GEOMETRIC MEAN OF 20 STRUCTURES FROM THE ENSEMBLE (ENTRY 1ILP) SEE JRNL ENTRY FOR MORE DETAILS.
NMR Ensemble Information
Conformer Selection Criteria LEAST RESTRAINT VIOLATION ENERGY
Conformers Calculated Total Number 40
Conformers Submitted Total Number 1
Additional NMR Experimental Information
1 THE ASSIGNMENTS WERE MADE USING TRIPLE RESONANCE NMR EXPERIMENTS CONDUCTED ON 13C/15N LABELED IL-8 BOUND TO UNLABELED CXCR-1 PEPTIDE (SEE JRNL ENTRY FOR MORE DETAILS) NOE RESTRAINTS WERE OBTAINED FROM 15N EDITED EXPERIMENTS (INTRA IL8), 13C OR 15N FILTERED EXPERIMENTS (INTRA CXCR-1) OR 13C-FILTERED/ EDITED EXPERIMENTS (INTERMOLECULAR RESTRAINTS)
Computation: NMR Software
# Classification Software Name Author
1 refinement DISCOVER BIOSYM
2 structure solution version: DISCOVER MSI DISCOVER DISCOVER --