inositol trisphosphate

Inositol trisphosphate (IP3) is a signaling molecule found in cells. It plays a key role in cellular communication by helping to transmit signals from hormones and other chemical messengers. When these messengers bind to receptors on a cell's surface, IP3 is produced inside the cell. This molecule then triggers the release of calcium ions from the cell's internal storage, which can influence various cellular processes such as muscle contraction, secretion, and cell growth. Essentially, IP3 helps translate external signals into specific actions within the cell, making it vital for many biological functions.