Title : Key motif to gain selectivity at the neuropeptide Y5-receptor: structure and dynamics of micelle-bound [Ala31, Pro32]-NPY.

Pub. Date : 2002 Jun 25

PMID : 12069594






3 Functional Relationships(s)
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1 The structure of [Ala(31), Pro(32)]-NPY, a neuropeptide Y mutant with selectivity for the NPY Y(5)-receptor (Cabrele, C., Wieland, H. A., Stidsen, C., Beck-Sickinger, A. G., (2002) Biochemistry XX, XXXX-XXXX (companion paper)), has been characterized in the presence of the membrane mimetic dodecylphosphocholine (DPC) micelles using high-resolution NMR techniques. Proline neuropeptide Y Homo sapiens
2 However, signal reductions due to efficient electron, nuclear spin relaxation were much less pronounced for the surface-averted residues in [Ala(31), Pro(32)]-NPY when compared to wild-type DPC-bound NPY. Proline neuropeptide Y Homo sapiens
3 The postulation of a different membrane binding mode of [Ala(31), Pro(32)]-NPY is further supported by the faster H/D exchange at the C-terminal amide protons. Proline neuropeptide Y Homo sapiens