non suit The name of a judgment given against a plaintiff, when be is unable to prove his case, or when he refuses or neglects to proceed to the trial of a cause after it has been put at issue, without determining such issue.
Peripheral membrane proteins are proteins that adhere only temporarily to the biological membrane with which they are associated. These molecules attach to integral membrane proteins, or penetrate the peripheral regions of the lipid bilayer. The regulatory protein subunits of many ion channels and transmembrane receptors, for example, may be defined as peripheral membrane proteins.
Although these proteins are water soluble, they nevertheless associate with membranes. This they do by making specific lock-and-key attachments to the projecting portions of integral proteins. These docked water-soluble molecules are called peripheral membrane proteins because they reside outside the lipid bilayer. Their anchorage can be permanent or they may get on and off the membrane, randomly in some cases or else in response to a biological signal.