Ribose-5-phosphate, a monosaccharide with a phosphate group, is a part of the pentose phosphate pathway that is responsible for supplying energy needed in cell growth and fat storage.
Though cellular energy is usually considered to come from the well known cell respiration, much like a ninja, R-5-P and the PPP play a large role.
Commonly found in the cytosol of animal cells, R-5-P is necessary for doubling DNA and RNA synthesis
R-5-P is quite hydrophilic and reacts with various isozymes to be converted to a molecule called PRPP which is the next step in creating more nucleotides for DNA and RNA synthesis. It can be noted that the regulation of this process is still unknown.