PTH receptor

The PTH receptor is a protein found on certain cells, primarily in bones and kidneys, that detects the hormone parathyroid hormone (PTH). When PTH binds to this receptor, it triggers a series of responses that help regulate calcium levels in the body. Specifically, it promotes the release of calcium from bones, increases calcium reabsorption in the kidneys, and encourages the activation of vitamin D, which enhances calcium absorption from food. This receptor plays a vital role in maintaining healthy calcium balance, essential for proper nerve, muscle, and bone function.