Any process in which a macromolecule is transported to, and/or maintained in, a specific location at the level of a cell. Localization at the cellular level encompasses movement within the cell, from within the cell to the cell surface, or from one location to another at the surface of a cell.
establishment of localization in cell +
intracellular transport +
lipid localization +
localization within membrane +
maintenance of location in cell +
polysaccharide localization +
regulation of cellular localization +
ribonucleoprotein complex localization +
RNA localization +
spindle pole body localization +
stalled replication fork localization to nuclear periphery