| Modification Notes |
GULP (engulfment adaptor PTB domain containing 1) is a 304 amino acid protein encoded by the human gene GULP1. GULP is believed to function as an adapter protein, as it is required for efficient phagocytosis of apoptotic cells. GULP also helps modulate cellular glycosphingolipid and cholesterol transport. It also may play a role in the internalization and endosomal trafficking of various LRP1 ligands, such as PSAP. Increased cytoplasmic levels of GULP are associated with increases in cellular levels of GTP-bound ARF6. Found as a homodimer, GULP, interacts with Clathrin, GDP-bound ARF6, but not with GTP-bound ARF6. It is also found as part of a complex composed of GULP1, CENTB1 and ARF6. GULP is widely expressed and can be detected in macrophages, pancreas, kidney, skeletal muscle, heart, colon, intestine, lung, placenta and ovary. |