This is a lamp, lamps come in lots of different sizes and shapes. Some of them are even shaped like this:
The lysosome-associated membrane glycoprotein, Lamp to its friends, is part of the lysosome and therefore involved in digestion of foreign materials and autophagy. LAMP1 and 2 were first discovered in 1985, since then they have been widely studied and shown to be involved in quite a few important pathways in human cells.
Immune response: LAMP1 is necessary for delivery of perforin to lytic granules.
Cancer: LAMP 1 is a marker for melanoma metastasis into lymph nodes.
Apoptosis: LAMP1 and 2 promote apoptosis.
General Research: LAMP is a commonly used as a marker for lysosomes.
The scientists, who named this versatile protein, were either very boring (it describes exactly what it is) or very creative (there is beauty in simplicity).
Chen JW et a. (1985) Identification of two lysosomal membrane glycoproteins. J Cell Biol. 1(1):85-95.
Krzewski K et al (2013) LAMP1/CD107a is required for efficient perforin delivery to lytic granules and NK-cell cytotoxicity. Blood. 121(23):4672-83.
Sato H. et al (2009) Altered expression of glycoproteins on the cell surface of Jurkat cells during etoposide-induced apoptosis: shedding and intracellular translocation of glycoproteins. Biochim Biophys Acta. 1790(10):1198-205.