The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. [ISBN:0716731363]
A complex composed of ANK1, RHCE, RHAG, SLC4A1, EPB42, GYPA, GYPB and AQP1, that functions in the stability and shape of the erythrocyte membrane in human. [PMID:35835865]
Enables the transfer of ammonium from one side of a membrane to the other. Ammonium is the cation NH4+ which is formed from N2 by root-nodule bacteria in leguminous plants and is an excretory product in ammonotelic animals. [PMID:17710640]