1neu
STRUCTURE OF MYELIN MEMBRANE ADHESION MOLECULE P0STRUCTURE OF MYELIN MEMBRANE ADHESION MOLECULE P0
Structural highlights
FunctionMYP0_RAT Creation of an extracellular membrane face which guides the wrapping process and ultimately compacts adjacent lamellae (By similarity). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedP0, the major protein of peripheral nerve myelin, mediates membrane adhesion in the spiral wraps of the myelin sheath. We have determined the crystal structure of the extracellular domain from P0 (P0ex) at 1.9 A resolution. P0ex is folded like a typical immunoglobulin variable-like domain; five residues at the C-terminus are disordered, suggesting a flexible linkage to the membrane. The requirements for crystallization of P0ex are similar to those for maintaining the native extracellular spacing of adjacent myelin lamellae; thus, given the self-adhesive character of P0ex, the crystal itself may reveal some of the natural interactions that occur between P0 molecules in myelin. The structure leads to the suggestion that P0 extracellular domains may emanate from the membrane surface as tetramers that link to tetramers on the opposing membrane surface, to result in the formation of networks of molecules. We report analytical ultracentrifugation data for P0ex that support this idea. Crystal structure of the extracellular domain from P0, the major structural protein of peripheral nerve myelin.,Shapiro L, Doyle JP, Hensley P, Colman DR, Hendrickson WA Neuron. 1996 Sep;17(3):435-49. PMID:8816707[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
| ||||||||||||||||