Phosphorus has a number of functions in the body.
Phosphate is a component of hydroxyapatite in bones and teeth, as described earlier.
Non-bone functions include:
Phosphates are used to activate and deactivate a number of proteins. In addition, compounds are also frequently phosphorylated, like the monosaccharides shown below.
Phosphates are a component of phospholipids, as shown below.
DNA/RNA have a phosphate backbone as shown below.
The major energy currency, ATP, stores energy in its phosphate bonds.
The intracellular secondary messengers cyclic AMP (cAMP) and inositol triphosphate (IP3) both contain phosphate. The action of these secondary messengers can be seen in the links below.
Other functions of phosphate include:
References & Links
1. Gropper SS, Smith JL, Groff JL. (2008) Advanced nutrition and human metabolism. Belmont, CA: Wadsworth Publishing.
cAMP – http://courses.washington.edu/conj/gprotein/cyclicamp.htm
IP3 – http://courses.washington.edu/conj/gprotein/ip3.htm